Hi All,
Does anyone have a chart showing the weight of the engine short block for my lovely 142S ??
Thanks & Cheers,
Dave

Okay, here we go... freshly weighed pieces and assemblies, 'cuz it was all out there in the garage and it only took about 20 minutes to accomplish. The only caveat here is scale calibration - never really done, but this set of scales always has me within a couple of pounds of various doctor office scales. Let's say plus or minus 3% on the numbers below, just to be safe.

185 lbs - Short block, including block and all internal rotating parts, valve lifters, timing gears & cover, front and rear seals, & oil pan. No water pump, no front pulley, no distributor, no bellhousing, no flywheel, no clutch... a "pure" short block, if you will.

52 lbs - Head, including complete valve train, pushrods, head bolts, & valve cover.

This would obviously put a long block in the area of 230-240 lbs. This means the missing 100 lbs or so would be made up of intake system, exhaust manifold, water pump, starter, alternator, distributor, wires and plugs, flywheel, clutch, and bellhousing, etc. Sounds about right, but I haven't actually weighed *everything* in this list. I do know the flywheel is around 21 lbs and the starter is about 17 lbs.

Oh yes... just for good measure... an empty B20 block is just about 80 lbs.
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Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos

Great work Gary, ten tenths, is that a 6-bolt bottom end? What bore size? & was the bare block with or without caps & bolts?

Thanks,
Paul.



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Three 164's, Two 144's, One 142 & a partridge in a pear tree.

The short block is .030" over with a 6 bolt crank.

The 80 lb bare block was weighed some time back (it went to the scrap yard, don't have one lying about ATM), but I *think* it was completely bare... no freeze plugs, no cam bearings, and no main caps. It was also a .030" overbore, BTW.
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Gary L - 142E ITB race car, 73 1800ES

While on the subject of engine weight -- I found the "small" starter on my 940 Turbo only weighed 9 lbs--a nice saving if you're putting a Volvo on a diet. And years ago while helping my cousin develop his RX7 race car we scrapped off all the undercoating and interior floor sound deadener--took 40 lbs off the car--just imagine how much there is in a Volvo! Now that my 140 is ready for the track again I should do the same with myself--could stand to lose the same 40 lbs.-- Dave

Does the 940 Turbo starter motor fit a B20 engine and does it turn faster as per the 240 started motors?

If I'm not mistaken, all the 240 & 740 starters will fit the B20. And yes, at least the ones I've seen mounted on B20's were somewhat faster than the original B18/B20 piece.
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Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos

Starter - yes, I'm painfully aware of the fact there's a starter out there that weighs half what mine does, and will fit the B20 perfectly. Unfortunately, Improved Touring regs do not allow the swap, so I'm stuck with the extra weight where I need it least... in the LF quadrant of the car.

Undercoating - I can legally remove all that goop if I so choose, but I'm running ballast already (in the form of a spare tire in the RH spare tire well), so if you look under the #50, you'll see undercoating only on the back half of the car. :-)
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Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos

Howdy Gary,

From the SCCA Improved Touring Rules posted on line:

9.1.3.C.

..."Parts or assemblies which the manufacturer lists in factory service manuals or parts guides for a particular model which supersede or replace original parts or assemblies are permitted. Documentation of the superseding parts or assemblies must be supplied to the Club Racing Department and the appropriate part numbers listed on that particular model’s specification line."

From FCPgroton.com:

Volvo 140E Starter motor OEM Number 5001613

From Tascavolvoparts.com:

"Part number 5001613 was superseded by part number 5003564."

Now, the $64,000 question is, "Is Volvo PN 5003564 lighter weight than Volvo PN 5001613?" I think it is.


--
Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 53 year old fat man. ;-)

Actually, the bigger question in my mind is if "the manufacturer" superceded the part number, or did Tasca simply do it to get rid of an inventory line item. I know the latter to be the case at the local dealer in OKC... but I'll admit it has been a few years since I checked.

In any case, I'm glad this came up again. Since our move to Kansas, the closest Volvo dealer is Gorges in Wichita, and they actually give a damn. Next time I'm in the city, I'll drop by and chat with the parts guys on the subject. The bunch in OKC never seemed to be interested in helping someone out with what amounts to a research project.
--

Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos

I'm painfully aware of the fact there's a starter out there that weighs half what mine does

Why the feeling of pain? As much as it would kill me to follow some of those rules, that one would seem to be one of the more sensible rules. Are the original starter motors banned from modification?

You'd like the rules I use to race under. :)

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Three 164's, Two 144's, One 142 & a partridge in a pear tree.

Many rules were made to limit the money thrown into a car, so to leave the competing to the driver skill and courage.

Many rules were made to limit the money thrown into a car

Why didn't they specify a stock style pressure plate then?

Stock flywheel is a great idea, I've seen ignorant people do some terribly bad stuff when lightening cast iron flywheels.


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Three 164's, Two 144's, One 142 & a partridge in a pear tree.

Volvo greenbooks (71,72 & 73) say 341 lbs for a long motor including electrical equipment & carburettors. It does not say if the flywheel is or isn't attached. I can try & put one on bath scales tomorrow if you really want to know.

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Three 164's, Two 144's, One 142 & a partridge in a pear tree.

Hi,
Thanks to all who replied, now i know what it will weigh (Close enough anyway)
Cheers,
Dave

The complete engine is in the neighborhood of just under 350 lbs. A cylinder head is about 40-45 lbs. -- Dave

"The complete engine is in the neighborhood of just under 350 lbs. A cylinder head is about 40-45 lbs."

However, comma... that doesn't make a short block weigh 300 lbs. :-)

IIRC, the 330 to 350 lb figures you see published are for a fully dressed engine with all external accessories, intake system, exhaust manifold, flywheel, clutch, and bellhousing. Just an educated guess really, but I'm thinkin' the weight of a pure short block is closer to 200 than 300.
--

Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos

A short block is just heavy enough to make you sorry you picked one up out of your boot.



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Three 164's, Two 144's, One 142 & a partridge in a pear tree.

and I learned (remembered) this weekend that the block alone weighs enough to make you wonder why you didn't get one of your kids to help you hoist it onto your workbench. :-)

I only did the short block lift from the boot just once & THANKFULLY never ruptured a disc. Amazing how stupid I was in my youth, now I'm only semi-stupid....

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Three 164's, Two 144's, One 142 & a partridge in a pear tree.