Rod shims - O.K. I give up!!!

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Marshall V. Daut
Posts: 216
Joined: Wed Jan 16, 2019 2:57 pm
First Name: Marshall
Last Name: Daut
* REQUIRED* Type and Year of Model Ts owned: 1924 Coupe
Location: Davenport, Iowa

Rod shims - O.K. I give up!!!

Post by Marshall V. Daut » Tue Nov 18, 2025 3:46 pm

How in the Sam Hill are you supposed to separate new "best" rod shim packs between layers? 20-30 years ago I used to be able to do it easily with a box cutter blade or even a pen knife blade. But these newer shims must be held together with a space age adhesive that would hold a rocket ship glued together sent to the sun! I have tried various blades and a Bic lighter flame, but still I cannot even get an edge to begin peeling. I'd hate to use an acetylene torch because last time I tried that, I ended up with crispy critters all curled up and useless. Oddly enough, I had no problem peeling shim layers from a new main bearing stack ordered at the same time from the same source.

What's the secret no one is letting me in on??? :)

Marshall


Jerry VanOoteghem
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Joined: Sun Jan 06, 2019 4:06 pm
First Name: Jerry
Last Name: Van
Location: S.E. Michigan

Re: Rod shims - O.K. I give up!!!

Post by Jerry VanOoteghem » Tue Nov 18, 2025 5:01 pm

Suspend them from a tag wire and hold over a candle flame. It burns away the parafin(?) that binds them together. Heat gun might work too...

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1925 Touring
Posts: 859
Joined: Mon Apr 25, 2022 6:23 pm
First Name: Austin
Last Name: Farmer
* REQUIRED* Type and Year of Model Ts owned: 1922 Touring 1924 roadster pickup
Location: N.W. Illinois
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Re: Rod shims - O.K. I give up!!!

Post by 1925 Touring » Tue Nov 18, 2025 9:56 pm

A trick I picked up a few days ago was to heat them on a burner until the light smoke stops (the 'glue' burning off) in the shim and then set them in water and they should fall apart. I haven't personally tried this yet, but I'm sure it would work.
Just a 20 year old who listens to 40 year old music, works on 75 year old airplanes and drives 100 year old cars.
The past is only simple because hindsight is 20/20.

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