1933 v8, inspecting replaceable crankshaft rod bearings, how mucg wear allowed, when do you replace?
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Hey ClaudeC, WELCOME to the VFF!!!
I don't have an answer handy, but I'm sure someone will have the specs for you.You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command! -
Claude Welcome
Does this help you any?
3~ Tudor's & 1~ Coupe
Henry Ford said,
"It's all nuts and bolts"
"Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."
Mitch's Auto Service ctrComment
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Thanks, I will go over it carefully.Comment
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Mitch good article and thanks for sharing the link. I would recommend using plastic gauge to see how the bearing wear is as I didn’t see that in Rich’s article.Comment
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The rod bearings on early V8 are floating, they need clearance between the rod and bearing, and between crankshaft and bearing.
about .0015-.003 each side.
if a piece of .005 shim stock between crankshaft and bearing locks it up-- both rods it should be ok.
The rod bearings have to be able to spin, either they're wrong size or have to be adjusted by bending the shell.
Shim stock about 1/2" wide the width of journal.
Bearings were sold in undersizes for crankshaft, and oversizes for rods, and multiple combinations, original bearings usually have lettering in oil grooves that can be referenced to original size.Comment
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I noticed when looking to purchase replacement bearing that they list standard size plus additional oversized sized. Why are there oversized sizes, Is this to do with the original block size variations?12-30-2017, 07:44 AM -
Does anyone know a way to separate (delaminate) the many layers of brass main bearing shims that come laminated together when you buy them?01-20-2018, 10:43 AM -
Can anyone recommend a shop to re-pour and line bore model A main bearings in the North East? I have been using the Babbit Pot for a number of years but they are on vacation until the end of March and I would like to get this job started before then. Any recommendations in NH, ME, VT, NY, MA or CT would be appreciated.
Thanks
Greg02-13-2018, 09:15 AM -
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I was measuring the rollers of the bearings for least wear. It appears the rollers for the waterpump front bearing should be .25" in diameter.
Some original spiral type bearings had about .002" wear.
A couple of the solid type bearings were about .001"+ wear.
A couple were right on .250".
The older stock new bearins were right on.250"
...10-24-2017, 11:09 PM -
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Hi guys, My first time here. I found this rusty old car on my property in Maine, can't figure out what it is, my brother knows more than I do, says it's maybe a 1935 Ford, can't tell if it is a car or truck, no marques logos etc. Has a large boulder on the hood, so I can't move it. Just curious if anyone can identify it, it will not likely ever be moved....You do not have permission to view this gallery.
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Hi all! My name is Rowen n I LOVE mid fifties Fords. Pic is of my 55CV.
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