wanted chev 216 20thou under main bearings
 

Has any one got a set of 20 thou under mains bearings to suit a 1941 216 chev motor they want to sell
Needed urgently
I purchased a set off a dealer in Australia but the ones he sent were old stock that someone had partly machined allready to the wrong size
The dealer says he has no more and seems reluctant to refund for the duds :bang:

Mains
 

Andrew
Egge Machine co has them in the US , Pt No MS918-020 $us164.00

Regards
Jim S.

Thanks Jim
I had never heard of egge before
I was looking at Jim Carter site earlier
Egge prices seem slightly better
What is their quality and service like ?

Egge Machine Inc.
 

I have never dealt with Egge, nor do I know anyone who has. I have seen their ads in Hemmings and elsewhere for over 5 years so they are not a brand new, fly-by-night outfit.
Their website is: http://www.egge.com/
When you click on their online catalogue, it turns out they are part of the "Parts123" consortium. I have dealt succesfully with some other members of the group.

I have used Egge
 

I have used Egge in the past and they have always been good, not always the lowest priced, but what I have gotten from them has always been first class.

Cheers Phil

Egge have been around for a very long time. I purchased a set of light weight pistons and rings from them in the 70's for my model T. Top notch gear and have served well.

Regards

Col

Thanks to all for the replies
I have sent them a email so will see how that goes

egges
 

I found egges service and delivery to be quicker than Carters , they stocked u/sized bearings that were not available else where and in the case of bigend shells you could buy individual pairs at very reasonable prices.
Regards
Jim S.

bearings
 

UPTONS at Corowa had them ..030 and 040 undersize ..Australian made NASCO brand ( GMH ) . $5 a set . they sat for years along with the big crate of 040 216 pistons ..no-body wanted them year after year we went there during the 1980's and 90's. A case of you never need this stuff till its all gone !

Mike

Not all 216's are the same
 

The 216 engine that was used in the chev blitz was made in Canada from 1937 to 1945 and this can be identified by having a single hole from the waterpump to the block and having dome top pistons .

This same engine was produced in the USA from 1937 until 1940/41

In 1940/41 the engine underwent a change in the USA and came out with two holes going from the water pump to the block and flat top pistons plus other internal engine changes , this engine was produced until 1947.

Australia in 1942 received from the USA a considerable number of chev trucks Model M 160'' W/base for war support ( in Aust we call them Lend/Lease trucks ) .
It is possible over the years that these engines have become transplanted in blitz's or vice versa and this make ordering engine parts a bit tricky , when ordering parts on line from the USA keep in mind that blitz engines are the 1937 to 1940/41 engine .
Jim S.

Dating Engines from parts book
 

Jim Sewell raises a very good point in his post about domed pistons and water pump changes, which fits right in to the thread http://www.mapleleafup.org/forums/sh...ad.php?t=12592 (I'll post the piston listing pages on that thread.)

As to the water pump the picture below shows a `41 style water pump single inlet and the later 2 inlet + vent of the second style as you can see these are not interchangeable. This becomes very evident in the second photo which shows the gasket for two hole on the `41 single hole, as you can see the inlets don't line up nor do the mounting bolts.

Has anyone got the original part numbers for the main bearings on the cmp 216 ?
Thanks

Andrew,

Just be carefull as the original replacement bearings were supplied in a ' semi finished ' condition . The idea was they were to be ' line bored ' , as per the manual . I think the original part numbers will be for those semi finished shells. Not many engine shops do the line boring work any more , and it's a very time consuming, therefore, expensive process. The 216 precision shells didn't make an appearance til around 1948 ..they were made to fit the earlier motors pre 48 , as well as the post 48 motors.

I've got a booklet here put out by GM , on the precision shells and how to install them with the motor in situ. You still use the shims , per the older type shells, which is interesting .

Mike

Thanks Mike
Have tried three different US suppliers but I dont know what it is with US companies but they seem incapable of answering emails :bang:
very frustrating when you are trying to get things happenning

I was curious about the original numbers as I have been told of a bloke with quite a few different cmp bearings but he dosent know what they fit or what to look for
thought it may be a place to start
Might be lucky enough to strike a finished set

Would it be possible to get a scan or copy of that manual ?
It sounds like a interesting read

216 main bearings
 

Andrew as Mike stated earlier the original main bearings were supplied for either line boring or hand scraping ( two different pt/numbers )

Here are some pt /no's for std mains .
Blitz Parts book ( for hand reaming )
Front main 604003
Front int 604004
Rear int 604006
Rear 604535

Nasco ( precision finish )
F 3847064
FI 3847201
RI 3847606
R 3847068 ( 40/47 )
3847067 ( 37/39 )
Repco ( sets for domed piston engines )
1937/39 4M9559
1940 4M9979
It appears that the front 3 mains went right up to 1947 but the back main kept changing hence the different sets.
When ordering check the width of the rear main .
I have several sets of GMC mains , I will cross reference the numbers to see if they match.

Regards
Jim S.

Check out this ebay store. They list main bearings for $87.37.They also have overhaul kits fir around $750.

Ebay store
 

Cletrac , let us in on your secret , please.
Jim S.

Forgot the link. Sorry about that.

http://cgi.ebay.com/ebaymotors/Chevr...Q5fAccessories

Thanks Jim ,David and Mike
Have just sent a email to them
See if i get a response from them

bearings
 

The part number on the boxes of NASCO bearings I have are:

M31155 .. the rear main shells appear to be 1 5/8" wide

Mike

Yes on all of that Jim. And , on the 216, the push rod length and lifters changed at 1940 - push rods are shorter than 1939.

Another difference from 41 on, and this applies to the local GMH assembled 216 engines : the valve spring caps changed - from memory this affects the valve stem length. I've got a GMH notation somewhere , explaining it.
Mike

216 bearings
 

Andrew
In an earlier post I listed std bearings from Nasco , here are the .020'' u/s

Front 3847200 37/47
F/Int 3847201
R/Int 3847202
Rear 3847204 40/47

Repco would have 020 tacked onto the existing number .
If you come across other brands of bearings I maybe able to cross referance.

And , on the 216, the push rod length and lifters changed at 1940 - push rods are shorter than 1939.
Mike
The push rod part number for the 1940 chev is the same part number as the Blitz so these must be 1940 engines in blitz's, this push rod went from 1940 to 1952.
On the 235 chev motors ( 1946/52 ) fitted to Maple Leaf and 15 series spash feed , these push rods were about 3 mm longer and this is an easy way to tell if you have a 216 or a 235.
GMC have similar crankshaft journal sizes but differ in the locating tang / dowel arrangement.
Regards
Jim S

Repco
 

Just some more info .

Around ten years back, my local REPCO store ( Warragul ), still had 216 Chevy ring sets listed as available from their then current catalogue. When informed of this at their counter , I was somewhat surprised as they had, by that time, got out of supplying parts for older vehicles.

The other well known source of Chev bits, Col Bradford of Cheltenham, Melbourne, has closed and retired. He was always good for just about anything.
Mike

valves info
 

I found the 1941 supplement in the 1940 GMH issued manual .The supplement also has info on the WO split rims .The front cover states :

Third edition
reproduced for the use by
THE AUSTRALIAN COMMONWEALTH MILITARY FORCES


QUOTE

The 1941 engine , with the exception of several improvements, remains the same as the 1940 engine. These changes are briefly , the addition of an inlet valve spring cap cover, improved timing gear lubrication, and revised machining of the inside of the flywheel to prevent lubricant geting onto the clutch plate.

The inlet valve stem is changed above the valve spring to make provision for the use of an inlet valve spring cap cover , umbrella type.

The 1941 intake valves can be identified by the number "41" stamped on the head . The stem is shorter to allow for the fitting of the umbrella and is not hardened. The valve, therefore , can be used in 1940 engines , providing the umbrella is also used

END OF QUOTE

Mike

216 engines
 

Thanks for the info mike , interesting .
There is a good supply of .040'' o/size rings here in the West if anyone is requiring them for the 216 .
Regards
Jim S.

I contacted Ross Prince today
He didnt have what i needed
He has semi finished bearings at arout 010 under
Nothing near 020 under
Still no reply from any of the US companies :confused

mains
 

Try "Kanter Auto Products " USA.
They list them , but you would need to state the u/size required.
Regards
Jim S.

Andrew
 

It's more or less standard behaviour for many companies not to reply to emails . It's probably not worth it for them, in terms of time spent on the computer . Just a suggestion . Go to your local Post Office and buy a phone card , you can then make very cheap overseas calls to the USA .. there are various brands of cards out there. The local Post Office here sells them.

The other thing is. I can post you a set of 040 undersize bearings ..but you'll need to have your crank re-ground . And , I'll need to check if these bearings I have will actally fit a wartime motor .

BTW what are you doing with the big end bearings ? Are they useable as is or are you going to modern slipper shells ?
Mike

Here's just what you're looking for.
Ebay bearings
Check out his other stuff too.
Here I thought you Aussies were upside down but I guess the seller is only half way there.
Austin truck

Andrew there may be some in Yass
will let you know if the chap finds any
Max