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I found a super clean 90 740 GLE; 147k. 2300.00. Bought it.
Perfect Carfax. Lived in Nashville till traded in. Bought in Athens, AL.
Bringing it back the 130 miles to Talladega, wife following on I65 ..puffs of smoke; periodically ...out the back.
Then after some fairly fast freeway driving (75-80; 45 min), get off and there is this whir/whine, noticed slightly earlier in the test drive ...but now louder from under the car. Does it with tranny in neutral, slightly more in D.
Don't know 16v B230 engines at all. Would love to know if I have made a mistake before my check goes through ???
I hope there is an easy button for this. This is one really clean 740. Had to have been garaged most of it's life.
Thanks for your feedback. :)
Edit: Just read the balance shaft belt can whine. Will get that checked.
What else might I be looking for. Thanks.
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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I realized I had not posted back after I found the solution for the puffs of smoke out the back of the '90 740 GLE.
It was the valve cover gasket all along...correcting the issue, but not quite in the way thought.
It was leaking oil at the rear of the head, and the oil would apparently puddle on the small flat plate that set on top of the two exhaust pipes. The hot exhaust resulted in a puff of smoke out the back going down the interstate... some small puffs to others quite noticable.
As far as I can tell, it was never coming out of the exhaust. It has now been fixed for a few weeks... no more smell, no puffs of smoke.
Again... thanks for all the input and help! 🙌
The whine turned out to be a non issue.
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (463K+), 92 245 (300K+), 90 740 (148k)
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I have this same car but mine has 122k! 😀
So the b234f has some issues but you will want to find the source of that whine with a stephascope or screwdriver and ear.
Do the timing belt asap if there is no record on the last service also since it is a low millage car the belt may not have many miles on it but coiuld be old.
My option is to pull the balance belt off entirely , you don't need it. If you ever have a balance belt fail it will take out the timing belt. Been without mine for three Yeats now!
Also there is a defect in the oil pump bolt. Stock bolt likes to shear off get a hardened one while you are in there to replace it. Go to mcmastercarr.com
Clean flame trap under intake. Its there right next to something that likes to cut your hand ☺
I had one balance shaft bearing spinning and made a whine hence the reason I first took off the belt.
Look up the Volvo 740 UK FAQ site to get more details. Also IPD sells a european Haynes 740 manual that has this engine covered.
Also you want to be really careful compressing the timing belt tensioner, compress it to fast and it will leak. I think it should take 15 minutes of slow compression in a vise to be OK. Lost my first one ,$80 mistake.
Go high quality on the belt and bearings. Conitech, INA or Koyo
Ca! Seals like to leak in this engine. See flame trap!
Nice car!
John
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posted by
someone claiming to be old 16 valver
on
Wed Jun 1 23:25 CST 2016 [ RELATED]
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Re. smoke. The B234F is known for sticky hydraulic lifters. That's especially
true for a low mileage engine at that age. Regular changes with quality semi-synthetic oil can help. Maybe consider a flushing agent oil additive a few 100 miles before the next oil change. Lots of high rev (highway) miles also help.
Re. whining noise. Definitely worry about the timing and balance shaft belts. If you've got the manual tensioner (see FAQ) then consider a minimal re-adjustment by loosening and re-tightening the tensioner. If you're at all uncertain as to the last belt change then consider doing it now to protect your investment. Replace tensioners and idler bearings as needed (again, see FAQ).
The B234F can be a great engine. It just needs a bit more TLC than the other red block engines.
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Thanks.
Makes sense on the smoke. Years back some would talk about getting it on the highway and just blowing it out! Done that many times!
The car was maintained religiously maintained here ..
http://www.importspecialty.com/mobile/index.html
I called them and the t belt was changed at 133k. I have a good tech locally that I will get to check the adjustments.
Side note on importspecialty. We have a very similar shop in Birmingham (Franklin Automotive) not too far from me, but they have moved from being all Volvo years back to working more on Lexus, Infinity etc. Last time I carried my Volvo 240 to them for a check engine light, they had me there well over an hour, came back with ”we can't find the problem" and commented that it had a very low idle ...left it at that. Made no recommendations ...nothing! At least there was no charge.
I figured out the check engine light myself with Brickboards help.
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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Got with the prior shop, new timing belt and balance shaft belt installed August 20, 2011 @ 133,468.
Now has 147k, approx.
If I pull the top cover and the belt looks good, not worn or dry-rotted ...should I be good to go for a spell?
Thanks
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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You should be good for awhile. As you already know, Andrew, with time the rubber will deteriorate. No more than 10 years. Personally, I'd do it at 8 years or 50k. During that time periodically examine the rubber for damage - dry rot, cracks, splits, fraying etc.
https://www.brickboard.com/FAQ/700-900/EngineSealsBeltsVent.htm#B234TimingBeltCautionaryTales
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Always loved 740s ...had a couple, but this has to be the nicest one I have ever had. No dents anywhere ..only one small chip on the leading edge of the hood. Interior clean with first rate carpets, door bins perfect, dash not cracked ...just clean. Normal cracking starting to show on the leather seats, but still in excellent shape.
The paint is perfect. I don't see how it could be any better when it was new 26 years ago.
The bigger issue now is I have to drive it, and in that I know it will not stay this perfect. I think I will try to do better on this one as far as upkeep. Have to really ...with that head. Always been a bit lax with regular red blocks about the t belt ...can't with this one.
Thanks again..everyone!
😀
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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--
"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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Best of luck with the engine. That's One Sweet looking car.
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Sharp car!
Years ago I almost bought an identical looking 92 740 turbo. White definitely looks good on those cars.
Good luck with it!
Jim
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Read your owner's manual on how to check the transmission fluid level.
Also check the color of the fluid. If it looks bad, drain the pan and fill to proper level. I think that this should be done every 30 K - a lot of owners do not do this. If the fluid looks bad, change the fluid in the pan at every oil change until it looks good.
If you do not have an owner's manual, download one.
Could the noise be valve noise?
The only 16v that I drove did sound a bit like a sewing machine from the valve train. It did seem to have more go than my '90 744 Turbo at the low end - same 160 horsepower rating.
You really should have someone familiar with this engine look at it. Make sure they know this animal.
Even if you have to go to a dealer.
This engine is not too common, and letting things go could get costly.
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Thanks, James.
I have the manual, and will definitely ck the tranny fluid.
The Carfax shows all the service, most at a major import shop in Nashville. Monday I should have a lot more info.
Thanks again!
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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Power steering whine? Smoke could be flame trap needs replacing. When was the last complete tune-up and oil change? Amazon used manuals is where I get all my repair books.
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I thought about the flame trap, but I do not see it on the 16v, and I find no Google reference.
Any thoughts...anyone?
Thanks for the reply.
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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That is an interference engine so get the TB changed if you don't know when it was done last. Other than that I can't help you.
Dan
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Thanks..
Carfax shows where it was mainly serviced. Should be able to find out.
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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If the timing belt has been changed, there should be a metal tag on the tub cover.
Or at least a note in crayon.
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Most of the time I've seen a sticker stating the date and mileage the belt was changed attached on or near the timing belt cover. Any reputable mechanic should do similar.
Whirring or whining noises sound like a tranny issue to me. Definitely check fluid level first. Try and locate the sound with a stethoscope or hose in your ear. Have you checked for the noise in the other gears?
Did you notice what color the smoke was?
Also check for noise where the timing belt rotates. Is the idle smooth? Don't know these 16v engines but I'd try taking the timing belt cover off and check the condition of the belt and the tensioner if you can access that. If you have any doubt about their condition get them changed ASAP. If they break so will the upper end of your engine.
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Thanks, jwalker..
Color of puff was white. That's oil, I know. I have read elsewhere about some valve seal leakage on these heads.
After I got it home, noted oil was down a bit over a quart. Not sure if low oil had any impact.
Not really going to drive it till I determine if t belt has been changed, or needs to be. Definitely will make sure on tranny.
Thanks again ..
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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Andrew, I had one of these engines in a 90 wagon - went well over 200K. I liked the response when I put my foot in it.
A common problem with this engine is oil leaking form the valve covers. The spark plugs sit in a well between the cams, and leaking gaskets allow oil to pool in the spark plug holes, and a bit can seep down the threads and into the combustion chambers. That could be the cause of your puffs of oil smoke.
Easy diagnosis and fix - pull the center cover from the head and look for oil. As always, if you replace the gasket, go easy on tightening the valve cover nuts - over-tightening can lead to warping and more leaks.
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Thanks, Box.
Curiously ..what happened to the car?
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"Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (400K+), 92 245 (250K+K)
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