40HP main bearing odd size. Do they still make this size?

[matthew henricks]

Rebuilding a early 60's 40HP case. (round hole oil filler) It was Align Bored at some time and is still good. (Has a Rimco stamp)

Case saddle measures 2.567". (across flats)
Old Bearing OD measures 2.569".
Case shows little to no wear. (Can't feel anything in the saddle from the main bearings)

This seams to be a .010" case. Do not see bearings for these for sale anywhere.
- Does this seem right?
- Do they still make them (I tried to search but just get .010" crank info)

I have a set of new .020" bearings (111-198-477T) and they do not fit. Not even close. They measure 2.578"

Case really does not need to be bored again. I could easy go up to .020" but why if i can get .010? bearings somewhere?

What i need is a .010/.030 set. The old bearings have no part number on them to go off of.
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1964 Original Owner build Thread. https://www.thesamba.com/vw/forum/viewtopic.php?t=702135&highlight=

Ambulance Fan's. https://www.thesamba.com/vw/forum/viewtopic.php?t=627707&highlight=

Parts i am looking for:
64 bug nice used front/rear Black LHD floor mat.

[Bub]

I know shops where I live found it to be easier and cheaper many times to Machine a case and bearings together in whatever size made it work.
They'd take a 2nd oversize off the shelf and put it on the mill and just machine it to fit whatever the case was. Occasionally only the thrust had any wear so they'd run the bore through the thrust just a couple thou* and mill the bearing to fit.

Especially in the 90's on something like a 40hp that was assumed likely to never be rebuilt again when 1600's were cheap and plentiful.
Just a guess / idea to what you may be dealing with.
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[matthew henricks]

Thank you Bub. Ill look close to see if it looks turned. Can't imagine how you would do that to the split bearing though. Hmm....
_________________
1964 Original Owner build Thread. https://www.thesamba.com/vw/forum/viewtopic.php?t=702135&highlight=

Ambulance Fan's. https://www.thesamba.com/vw/forum/viewtopic.php?t=627707&highlight=

Parts i am looking for:
64 bug nice used front/rear Black LHD floor mat.

[modok]

0.25 over bearings did exist.
Try mofoco or rimco or maybe they have some.

[SGKent]

RIMCO was around for a very long time before Ed sold it about 2010. BugCity https://bugcity.com/shop/shop.lasso?pquery=main+bearings has some of the unusual .25mm (.010") over main bearings but you need to know the thrust cut and crankshaft size too. If it is .25mm/Std/Std then I did not see that. It says on their page that they were from a company in Austria and that VW never made that size cut. Here is a link to a chart of the bearings that were available sizes on VW engines with the part numbers. You will see that .25mm over on the bore was not available. https://dunebuggywarehouse.com/blogs/news/vw-type-...gy-engines
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[matthew henricks]

Thank you Guys. I thought i was going nuts re-checking that measurement and searching around.

In inches i need .010/.030/???. (Case/Crank/Thrust) I need to check my thrust but think it is std.
_________________
1964 Original Owner build Thread. https://www.thesamba.com/vw/forum/viewtopic.php?t=702135&highlight=

Ambulance Fan's. https://www.thesamba.com/vw/forum/viewtopic.php?t=627707&highlight=

Parts i am looking for:
64 bug nice used front/rear Black LHD floor mat.

[heimlich]

Once upon a time, there were repair bearings that were made in between the cuts. You have 0 and .5 now and at one time 0.25 existed.

I have the size you need but not in repair bearings.

I have a chart here on top of the page. Since you are using a 3rd cut crank you will find a lot of bearings. Not many people venture out that far.

https://www.vwnos.com/bearings
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[matthew henricks]

After many PM's and chasing down leads no joy. I did find .010/.030/.010 bearings but my case is not cut for thrust.

My options are to cut the thrust or just cut the case to .020". I will do the second.

Thank you all. For anyone searching after me Bug City has alot of these special bearings. Every crank size .010" through .040" but they are all cut for .010" thrust.

https://www.bugcity.com/shop/shop.lasso?pquery=1119840
_________________
1964 Original Owner build Thread. https://www.thesamba.com/vw/forum/viewtopic.php?t=702135&highlight=

Ambulance Fan's. https://www.thesamba.com/vw/forum/viewtopic.php?t=627707&highlight=

Parts i am looking for:
64 bug nice used front/rear Black LHD floor mat.

[modok]

Ok, not sure why tho
It's a lot easier to trim the bearing than it is to line bore the case.

[oprn]

That is what I did for my type 4 engine. I just bought the correct crank and case size and the closest available thrust then chucked it up in my lathe and trimmed it to fit. Why cut the case if it doesn't need it?
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We had the stone age, the bronze age, the industrial age and now we are in the age of mass deception and mind control for corporate profit. (The mass media age)

[heimlich]

I'd save the case as much as possible. Cut the bearing before you cut the case.
_________________
www.vwnos.com [email protected]
Classic Brands. Classic Quality.
Not all parts are made the same. NOS OE/OEM parts made mainly in West Germany, Early Germany, and Early Brazil are where VW produced the best quality parts and best fitting products.
5% Off your order with coupon code: 5%OFF
Restored Distributors Available (<--Click here)

[SGKent]

I am the odd ball. I would look for a good standard crank and cut the case to the first standard oversize. Two problems solved.
_________________
“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[heimlich]

[matthew henricks]

Thank you. Did not mean to poke the bear there.

Any pictures of how you would cut the split bearing OD? I was told you put in on a mantral and wiring it closed using the oil slot but that seems like a fantastic way to ace out the bearing. To me i would make a mandral with side guides and them maybe it would work. The rest are pretty straight forward. I guess i need a visual on how to do the split bearing.
_________________
1964 Original Owner build Thread. https://www.thesamba.com/vw/forum/viewtopic.php?t=702135&highlight=

Ambulance Fan's. https://www.thesamba.com/vw/forum/viewtopic.php?t=627707&highlight=

Parts i am looking for:
64 bug nice used front/rear Black LHD floor mat.

[modok]

[matthew henricks]

I see. I did not understand that point. I am not familiar with how the trust is cut. Well more to the point how the case is held to cut the thrust. I have some learning to do.
_________________
1964 Original Owner build Thread. https://www.thesamba.com/vw/forum/viewtopic.php?t=702135&highlight=

Ambulance Fan's. https://www.thesamba.com/vw/forum/viewtopic.php?t=627707&highlight=

Parts i am looking for:
64 bug nice used front/rear Black LHD floor mat.

[modok]

You want a picture of how to mount the thrust bearing on a lathe?
ok sure, I'll get a picture of that setup for you.

I am not aware of how to modify a split bearing to a .010 smaller OD.
Maybe possible, maybe not.
Never been asked to try it.

[heimlich]

I think this is what you need here: https://www.vwnos.com/4m111010-030

You can look at the bearing chart here: https://www.vwnos.com/bearings
Those are on the Repco chart.
_________________
www.vwnos.com [email protected]
Classic Brands. Classic Quality.
Not all parts are made the same. NOS OE/OEM parts made mainly in West Germany, Early Germany, and Early Brazil are where VW produced the best quality parts and best fitting products.
5% Off your order with coupon code: 5%OFF
Restored Distributors Available (<--Click here)

[VW_Jimbo]

I set them up on my mini lathe and cut them to size.

_________________
Jimbo

There is never enough time to do it right the first time, but all the time necessary the second time!

[matthew henricks]