Connecting Rods

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Bill Johnson
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* REQUIRED* Type and Year of Model Ts owned: 1925 Coupe, 1926 Roadster, 1927 Fordor, 1914 Touring project
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Connecting Rods

Post by Bill Johnson » Wed Sep 14, 2022 10:59 am

Is there a way to identify connecting rods without weighing them? The weight might vary because of missing or damaged babbit. Ford may have used several suppliers for the rods but were any stamped ith a part number or identifier of some kind?
Thanks

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Craig Leach
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Re: Connecting Rods

Post by Craig Leach » Wed Sep 14, 2022 1:17 pm



John kuehn
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Re: Connecting Rods

Post by John kuehn » Wed Sep 14, 2022 1:31 pm

The older rods look wider through the web of the rod. They are fairly easy to tell from the later lighter rods. Most of the suppliers won’t accept the older rods for exchange because of the older design and weight. They won’t rebabitt them. Or they use to not do it.

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Mark Gregush
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Re: Connecting Rods

Post by Mark Gregush » Wed Sep 14, 2022 11:38 pm

Yes the rods were forged with makers mark, but there are too many to list here. While the marks are shown in the Service Bulletin Essentials, they are not cross referenced to which type rods they go to, except maybe by using the date when Ford posted the charts, but that might not be helpful, as the same company could have made different weight rods.
There are 3 types of rods, heavy, medium and lite. Medium and lite are really close. Looking at where the shank meets the part where the babbitt is poured; heavy is about 1" across, medium is about 7/8" and lite is about 5/8".
Craig, you may be posted the wrong link?
I know the voices aren't real but damn they have some good ideas! :shock:

1925 Cut down pickup
1948 Ford F2 pickup

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Craig Leach
Posts: 1906
Joined: Tue Jan 08, 2019 12:22 am
First Name: craig
Last Name: leach
* REQUIRED* Type and Year of Model Ts owned: 1919 Firetruck/1922 Speedster
Location: Laveen Az

Re: Connecting Rods

Post by Craig Leach » Thu Sep 15, 2022 1:19 am

Yes Mark I did. Try mtfca.com/discus/messages/506218/585921.html?1448347389 Or model T forum light rods vs heavy
Craig.


Topic author
Bill Johnson
Posts: 8
Joined: Sat Mar 16, 2019 11:08 am
First Name: Bill
Last Name: Johnson
* REQUIRED* Type and Year of Model Ts owned: 1925 Coupe, 1926 Roadster, 1927 Fordor, 1914 Touring project
Location: Texas

Re: Connecting Rods

Post by Bill Johnson » Thu Sep 15, 2022 11:43 am

Mark,
This helps.
Thank You

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Mark Gregush
Posts: 5370
Joined: Sat Jan 05, 2019 1:57 pm
First Name: Mark
Last Name: Gregush
* REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
Location: Portland Or
Board Member Since: 1999

Re: Connecting Rods

Post by Mark Gregush » Thu Sep 15, 2022 2:32 pm

I know the voices aren't real but damn they have some good ideas! :shock:

1925 Cut down pickup
1948 Ford F2 pickup

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