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In what year (80's) did the water pump change from one style to another?
I've checked with various vendor's websites and their pictures vary for same year. And some use the same picture for all years.
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B21-B23 76 till 84 then 85 + is B230.
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71-145-S ; 82 245GLT ; 72-1800-ES
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Yet the water pump is the same model and application that varies by vendor (OEM or not) and the vendor design, yes?
There may be difference by length between the earlier (b21, b23) and the low-friction b230? I sort of doubt that.
Unless otherwise, consensus is the HEPU brand water pumps in the aftermarket for your Volvo 240. I'll guess the gasket set that comes with HEPU is also of quality.
Also, use a quality water pump gasket and seal kit. Do not use MTC, URO, and like garbage.
Victor Reinz, Elring, Felpro are reputed as best to better sources for water pump gaskets and seals.
Some will use oil or grease on the gasket, and not RTV, to help with seal.
The debate on HEPU centered on the closed impeller like earlier Volvo OEM water pumps used on your Volvo 240. Use the search feature on the RWD page and discover the threads treating this topic.
Image Courtesy FCP Groton:
Page:
https://www.fcpeuro.com/products/volvo-water-pump-760-242-244-245-270681-1
50$
I bought and installed a Volvo OEM blue box water pump onto a 1991 240 B230. It appeared to be made in England. In less than two years it failed at the rear axial seal. It was leaking for some time. The new coolant destroyed a young alternator that passed on well before it's time. (Though I still have it. Can't rebuild it. Gots no garage. No vise. No class. Ha!)
The Volvo OEM pump uses an open, stamped steel impeller, like the other cheapie after markets. HEBU does not, as you can see. There may be others.
Volvo OEM Pump. Image Coutesy iPd USA:
Hope that helps.
Questions?
Water Pump Boyeeeeeeeee
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Love your Volvo brick and your www.brickboard.com!
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'' Unless otherwise, consensus is the HEPU brand water pumps in the aftermarket for your Volvo 240. I'll guess the gasket set that comes with HEPU is also of quality ''
Just changed the HEPU I installed a little over 5 years ago with about (100k km) 65k miles. It developed a major coolant leak.
Being a retired lab technician I took it apart for analysis.
What I found is:
- very good bearing, could have done twice that mileage easy
- very good mechanical seal, looks to me like graphite
ring against ceramic seal,
- very bad rubber or polymer sleeve (bellow ?) bounded to graphite ring and propeller.
I can tear it with my fingers and cut through with my finger nails.
Looks like that material has been deteriorated with time or reacted with coolant. I use the red coolant type which I replace every 3 years.
Too bad HEPU, no more for me. Local auto parts sold me an Italian made pump this time. I might have chosen also the Volvo pump which I bet has to meet higher quality specifications although it might be made by the same people that makes HEPU brand.
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Hi Rolandp,
What brand red coolant? I know you must not use orange-color coolant in redblock Volvo.
Thank you. I guess there needs to be another review of water pump quality for Volvo. Certainly redblock overhead cam and overhead valve.
Don't listen to me.
The water pump replace I performed yesterday on my 1990 240 DL failed. I drove like 8-10 miles yesterday and 4 miles today to do an errand. Just as I was pulling into an empty parking space, it went pop at the top do'h!nut seal.
D'oh!
I have AAA, and they came with full carrier to tote me and my sour puss back to the middle of midwest city suburb slums.
I'm sure everyone else using the Volvo OEM blue box pump has had success with it. The Volvo blue box OEM pump for later 240 is now made in England. I installed one on my 1991. In 18 months and maybe 7000 miles it formed a slow leak through the rear axial shaft seal, through the bottom hole, and dripped coolant onto the alternator, taking it out. So I have a Hepu pump on there now.
It was well past the Volvo blue box warranty, so I went after market.
And I get to replace another water pump. batches of dozens since like 1982 or so on most makes and models. Primarily Volvo redblock four cylinder and a few times on the mighty and powerful Volvo B30.
We use the Hepu pump as the impeller is a closed design like Volvo used to use. The new Volvo pumps use a stainless open impeller which may not move as much coolant, or so the debate on the design went. I can try to find the link.
I just went with what the debate consensus us at that time. I understand we that suffer aftermarket parts have to keep up with the ever changing parts vendors.
FCP Groton has a new Graf Brand water pump for low-friction overhead cam Volvo redblock here:
https://www.fcpeuro.com/products/volvo-engine-water-pump-940-740-760-780-240-244-245-1
Also features a closed impeller like original Volvo OEM and Hepu.
Image of GRAF, FCP Groton courtesy:
Made in Italy, so the copy says. For 45$
Image of HEPU, FCP Groton courtesy:
Huh. Both brickboard.com and FCP use cloudfront.
Thanks,
Bruce.
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Love your Volvo brick and your www.brickboard.com!
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Hi, Bruce,
I have had good luck with the Graf water pumps. The first one was installed by a Mercedes specialist in Indian Trail, NC, along with timing belt and tensioner. Timing belt broke on Big Red coming home from Charlotte about 12 years ago. After new water pump was installed, I noticed temp gauge was reading about mid-range thereafter. I don't know if the Graf impeller was moving more coolant than the old one, but the engine did seem to run cooler even with the AC on.
Have you ever run Prestone Lox-Tox anti-freeze? It's a propylene glycol based coolant which won't hurt animals or children if they should accidentally ingest it. I've been using it for over 20 years and haven't had any problems with it.
Hope this helps.
Andrew
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Hi Andrew,
Thank you.
Your timing belt broke and with replacement at the Mercedes specialist in Indian Trail, NC, you went ahead with a water pump replacement then? This was 12 years ago and no problems since?
I've not heard of Prestone Lox-Tox anti-freeze until you mentioned it today.
Oh, I see, you mean to write Prestone® Low Tox®:
http://prestone.com/enmx/node/414
I always capture all fluids and recycle them. I was dismayed at the coolant loss in the parking lot. It was a 4 mile drive not ever over 30 MPH. It leaked over a gallon out through the top water pump donut seal. I did not slide the water pump back in such a way while it was resting low on the two studs. So, it caught, and well, the result in an image:
Two Canadian geese and some crows or ravens came around and lighted on the parking lot lights (it was daytime, still). So, I presumed they smelled it. Though was there long enough to see the green coolant soak into the porous asphalt yet leave some wetness on the surface.
In spite of some heavy rain a day or so later, I disagree that 'dilution is the solution to pollution'.
So, I'll check up the Prestone Low Tox. I have another water pump and heater control valve to replace on the 1992 240 GL (using Dave's Wagonmeister.com heater control valve.)
I was able to fill the coolant jacket (chamber) with the scavenged and sieved Prestone green I had in bottles for the 1990.
Thank you, Andrew!
--
Love your Volvo brick and your www.brickboard.com!
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Dud,
Sorry about the error. I did mean Prestone Lo-Tox. We don't have nearly the cold weather here that other folks have, but our summers are something else! The Lo-Tox has worked well for me, and with the added safety of not poisoning the birds and animals, I can say that it is good stuff. To clarify about the Graf water pumps, I had the 2nd one installed along with a timing belt change about 6 years ago. I'm getting some leakage from the weep hole on the present Graf, but until the belts are slackened and I can check the play in the water pump shaft I won't know about how much longer before I need to replace it.
I used GMB water pumps previously and had no problems with them. I've never used Hepu pumps before, so I don't have any experience with them.
Hope this helps,
My best regards,
Andrew
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'' The new Volvo pumps use a stainless open impeller which may not move as much coolant, or so the debate on the design went. ''
Volvo now use open SS impeller ? This is shocking. I had many many years ago overheating problem at idle on the 1982. The pump had open propeller. Problem was fixed by using a Volvo pump with closed impeller.
'' What brand red coolant? I know you must not use orange-color coolant in redblock Volvo. ''
I use Dexcool. On the container it says: GM approved and 5 years protection against rust and corrosion. I have used this for more than 10 years. It seems to keep the radiator cleaner, less greasy let say than the yellow type I was using before. I particularly feel the heater gives more heat on a very cold day.
I do not pressurize the cooling system since summer is not that hot here in north east. 430k km and 34 years original heater core that I don't want to fail most of all.
Good subject.
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Hi Rolandp
Volvo now use open SS impeller ? This is shocking. I had many many years ago overheating problem at idle on the 1982. The pump had open propeller. Problem was fixed by using a Volvo pump with closed impeller.
Yep, a stamped stainless open impeller. Made in England. And the bastard blue box Volvo water pump leaked. I can't speak to efficiency whether an open or closed impeller. I dunno. I would presume an improved efficiency with a closed impeller like the HEPU.
Like the GMB Uncle Art shows as the GMP pump on his web page:
http://cleanflametrap.com/wasserpumpen.html
Art, no link to this page from your website home page. Unless I'm daft, and yes, I'm daft. The iodine pills are helping.
Though now I can't find the GMB brand pump.
The only water pump I found in the last few days from iPd, FCP Groton, Amazon (looking at them for Volvo parts since Uncle Pageda made mention of the BMW spec Giubo flex coupler. Finds Volvo 240 parts on Amazon?!?!? Krazee, says the guy with a large box full of vacuum tubes for SW transceiver sets and Bogen amps he no longer has.)
With Art's mention of the Dexcool, I'd read how many GBM auto owners suffered Dexcool, even using proper changes, as the Dexcool ate the intake manifold gasket away on water-cooled intake manifolds? There have been lawsuits againts GM and their Dexcool in their GM cars.
https://en.wikipedia.org/wiki/Antifreeze#Organic_acid_technology
I'd read on BMW forms of some using a very high quality glycol coolant that does not require a pressure cap. Runs it coolant without pressure in his BMW inline six cylinder motor.
The Prestone extended also give five year protection, so says the package and website copy. Though rich in silicates, other webites say. So, well, some more research on my part.
Though Prestone now produces the Zerx brand and a Dex-cool version.
The only made in Italy water pump I find is this brand I'd not seen before: GRAF
Is this the brand water pump you have in your Volvo?
Since, after your tear down of an older HEPU pump, you discovered failing seals, yet quality bearings, Rolandp?
Though when mixing antifreeze to make engine coolant, we use distilled water (or demineralized). Dexcool, so says the wikipedia article uses some kind of "organic acid technology" (Dexcool, Zerex) for use with high mineral content of water found in some areas of the U.S.
I'll stick with the green, for now. I'm no chemist. I'm unsure the type rubber, yet the Volvo 240 radiator hoses use a nylon mesh reinforcement. Silicon plasticizer?
Thanks you.
Hope to hear from you.
Got a spare garage? (No more dreams of being the Jay Leno of rear wheel drive Volvo, from PV 444 to 164 to 1998 940. Aging alone sucks.)
Volvo wasserpumpen seals and gasket are in at the Volvo dealership! Maybe has a 1972 164 with M410 hiding in the used lot? A 1979 242 GT with M46? Dreams of them rwd Volvos autos daily in a sea of sunflowers.
Also wants a large Lionel O or 027 gauge model railroad layout in my basement or live-in attic with cape-cod style dormer windows and to-scale Volvo autos at the crossing gates and stations. While residing in Nova Scotia. Norway? Estonia? Denmark!
Incompetent Water Pump Mechanic Some Days ago Boyeeeeee.
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Volvo RWD Wagonpower versus Wasserpumpen Power!!!!! Everyone needs an Uncle, and at least some kind family. Writing about Volvo may be the funnest thing about Volvo for me now. Yet I write. No Erma Bombeck or Bill McClellan or Kenneth Burke here.
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The Italian water pump I put in had no box or identification on the packaging bag. But I can tell you it had a cast iron closed impeller.
''Since, after your tear down of an older HEPU pump, you discovered failing seals, yet quality bearings, Rolandp?''
Good bearings ? I can tell you it was good bearings. After pushing in the center of brass impeller with a fat hammer and a large size punch the shaft assembly would not move. I had to use a cutting disk on 2 sides of the aluminum body to weaken it.
Yet after this hard blow the shaft would still turn smoothly with no perceivable sign of damage or rough spots. REAL good bearings.
''Though when mixing antifreeze to make engine coolant, we use distilled water (or demineralized)''
I am retired as a lab technician and since I use dehumidifier condensate as distilled water. No minerals in there, only dust particles and bacteria.
About the Volvo stamped SS impeller, I just saw the picture after I had answered the previous post. The stamped SS impeller pump I had to remove was not at all that shape. The Volvo impeller is a flat disk with slots while the one I removed had 7 wings impeller and open as a star. I can't see the brand name on the body. I feel the Volvo pump although stamped impeller, is way better than what I had. It has way less open area on the flat surface. I feel it might perform quite well.
Keep on analyzing Volvo stuff, it is quite captivating.
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Hi Rolandp,
Thank you. Happy Sat-Your-Day!
One wonders, in using Dex-cool, or the aftermarket Dex-cool like from Prestone, that uses an organic acid, as described the aforementioned wikipedia article in this thread, could have weakened the seals in the HEPU pump you disassembled?
I imagine the seals are silicone or are a synthetic rubber with silicon plasticizers? I dunno. I'd not ever pulled apart a water pump.
Prestone green (Prestone Extended Life Antifreeze/Coolant) is also, so sayeth the website and package copy, is silicate and phosphorous free, now. Though the green appears for best use as engine coolant with three metal exposure. From most noble to least, iron (alloys), copper (alloys), and aluminum (alloy, as with the Volvo 240 4-cylinder redblock overhead cam cylinder head.)
You also have lead-tin solder used to seal the radiator and the HVAC box heater coil. I dunno how it behaves when coolant loses anti-corrosion qualities. Pure lead would be pretty inert, yet can oxidize. Add tin to form the solder alloy for the desire metallurgical alloy qualities to seal and secure the cooling radiator and the heater coil in the HVAC box at the complete center of the 240 universe (ha-ha - had to get that in!), you get reports here on our brickboard.com and other forums of leak forming at factory solder welds.
Unless it is RoHS-compliant, and uses silver in the newest of new radiators and heater coils for the HVAC box. (Least we don't use lead in engine fuel anymore, thankfully. As for the stupid ethanol from subsidies used in fuel to make Iowans wealthier, well ...)
I've done a few redblock, with aluminum head, engine tear downs, though not recently, and don't want to do so anytime soon. Yet in wholly abused and neglected Volvo autos, (like those I end up with), I've seen the redblock aluminum cylinder heads lose material from corrosion (a kind of electrophoresis the corrosion inhibitors in antifreeze would prevent?). A kind of cavitation?
Some newer cars use only ferrous metals and aluminum. the engine coolant inside contacts. I guess these use a different coolant.
Of course, then we have issues with the Warp Core coolant. And, well ....
Ha-ha!
One wonders, with the HEPU and GRAF closed impeller, like Volvo of ye owld, well, why not make the impeller aluminum? I guess a cast steel closed impeller is better than the plastic or composites used in VW and BMW water pumps. (BMW seems to have ongoing build and quality issues, one can read about.)
Gots them seals, installs water pump today. Hopes no Changes to engine in the form of blown head gasket or warped head.
With compression at 170 in three cylinders, and one (#2 or #3) at 140 last time I check, cold engine, spark plugs out, full battery, and added oil to raise it, and it raised up, well, I dunno. The 1990 Volvo 240 DL li'l red wagon.
Please advise.
Thank you.
Cheers,
Dud.
Radioactive snow atop the owld Volvo 240. What gets a water pump installed today so soon after getting away from computer.
Say no to Eastern, WA state. A fascist, radioactive, corrupt crap heap. So goes the entire nation, for some.
--
Give the www.brickboard.com one giant thumbs up! 
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Just wants to leave an NMI. (HA!)
HEPU installed using Vovo seals and gasket. All went in. Socks on a rooster.
Adding coolant now.
Sees if we has warp core breach.
cheers,
dud.
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Kitty, I think you posted two views of the same pump, although it is obvious it is FCP's error, not yours.
https://dyw03owr7vs3n.cloudfront.net/public/assets/products/179337/large/open-uri20141209-23984-3joscd.
https://dyw03owr7vs3n.cloudfront.net/public/assets/products/234581/large/open-uri20150728-27103-148iygj.
PS - I used red coolant (Dexcool) and left it in a car 10 years before I changed it. It did seem to make some of the elastomers mushy (top seal, inside of radiator hoses, but I don't blame the Dexcool, but rather, praise its longevity. Meanwhile lots of you guys went on and on about how it destroys cooling systems.
Meanwhile I suspect a few people blame the seals that succumb, when their aging head gaskets cause coolant to be pressurized and contaminated with exhaust products.
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Art Benstein near Baltimore
http://cleanflametrap.com/wasserpumpen.html
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Thanks for showing the perfect picture of both pumps.
The pump on the right side was the bad pump for me. There was overheating at idle on a hot summer day.
The one that failed and I removed (HEPU)was closed brass impeller as showed on the left side.
I reprint your link below.
http://cleanflametrap.com/wasserpumpen.html
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Hiya Art!
Thank you!
I did not know about red coolant. The Dexcool. I've not red threads about it.
Contaminated with exhaust products? The head gasket does not leak on the red 1990 240 DL wagon. (At least, gulp, not yet anyways. We hope not.)
The HEPU pump I took off was made in 2003, of the date code on the cast impeller of "01 07 03" can be believed. By the prior (2nd) owner. I bought it from him in in August 2004. I put maybe 26,000 miles on it in that time.
So I went with HEPU again. Though the gasket kit I used was a cheapie. Also, may have flubbed it as popped and leaked through the top donut gasket in the parking lot. I've not ever flubbed a water pump replacement. Not ever! So, I'm feeling that I'm with stupid today.
Would exhaust (combustion) products getting into the coolant cause failure? That would mean a failing head gasket, yes? I guess that could go on for a long time.
I'll pull it apart tomorrow morning. See how I screwed it up.
The coolant may be the nasty green Prestone, yet it is maybe at most two years old. 'Cept I'll have to get more. I'll read up on the Dexcool.
At least I have a gallon of distilled water waiting for just such an occasion.
In a parking lot some ferrel cat or irate Canada goose (a pair were waiting) are probably smelling the coolant where it pooled. I ran some dirt around it to dilute it and prevent some animal consuming it. They like the green coolant stuff. I do try to catch it all and keep it clean. Today was an exception. Got all over me. Engine coolant is nasty.
So far, on the BMW and VW forums, HEPU is winning the preferred status. GRAF has the occasional bearing seize or seal failure.
You have Diften, AC Delco, and Beck Arnley (they still make them for 240?) and others on the Amazon.com.
So, the GMB on your wasserpumpen page still goes strong?
Did you install the HEPU with the bronze impeller?
Should we not use the HEPU? I'm still stinging from the failed Volvo blue box on the 1991 kittys grey volvo 240.
http://forums.turbobricks.com/showthread.php?t=319059
http://forums.turbobricks.com/showthread.php?t=289693
http://www.bimmerfest.com/forums/archive/index.php/t-465931.html
Thank you.
Wasserpumpen Installer Flubber.
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Love your Volvo brick and your www.brickboard.com!
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posted by
someone claiming to be CB
on
Mon Mar 28 14:02 CST 2016 [ RELATED]
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The B21-B23-B21FT Water Pump is different from the one used in the B230.
Yearwise the change to the B230 was in 1985
I have both a B21 - 1980 and a B230 - 1987
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posted by
someone claiming to be CB
on
Mon Mar 28 14:13 CST 2016 [ RELATED]
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B21/23 WP note the 3 bolt holes shown in this pic where the body mounts to the block
https://dyw03owr7vs3n.cloudfront.net/public/assets/products/161412/product/open-uri20140811-15776-mlvzbj.
B230 and here the placement
https://dyw03owr7vs3n.cloudfront.net/public/assets/products/179336/product/open-uri20141209-23984-1sem4lc.
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