i have some "mystery" connecting rods to identify ... they are the same dimensions as Model T , EXCEPT for the wrist pin ... the photos will show that detail ... all other dimensions are the same as Model T ...the wristpin is bushed with bronze bushing .750" diameter ...
these may be an aftermarket rod intended for Model T ... the wristpin end would require a floating wristpin with end locks to hold inplace ...not a standard Model T wristpin with clamp bolt ...
forging number is 81008RF also is numbered HF12 ... i have several rods and 1 other is HF11 ... this number is probably a die set identity ...
any help in identification will be appreciated ...
always an optimist
Gene French
mystery connecting rod identity
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Topic author - Posts: 849
- Joined: Tue Jan 08, 2019 9:58 am
- First Name: Gene
- Last Name: French
- * REQUIRED* Type and Year of Model Ts owned: 1926 Roadster pkup.
- Location: Nunn, CO
- MTFCA Number: 15614
- Board Member Since: 2014
mystery connecting rod identity
Last edited by Gene_French on Thu Apr 29, 2021 8:40 pm, edited 1 time in total.
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Topic author - Posts: 849
- Joined: Tue Jan 08, 2019 9:58 am
- First Name: Gene
- Last Name: French
- * REQUIRED* Type and Year of Model Ts owned: 1926 Roadster pkup.
- Location: Nunn, CO
- MTFCA Number: 15614
- Board Member Since: 2014
Re: mystery connecting identity
another photo ... missed this one in first post ...
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- Posts: 4144
- Joined: Tue Jan 08, 2019 7:31 pm
- First Name: Dan
- Last Name: Hatch
- Location: Alabama
- MTFCA Number: 49974
Re: mystery connecting identity
Was there not a stamped steel piston late in production that used a floating wrist pin like the A?
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- Posts: 1302
- Joined: Mon Jan 07, 2019 2:42 pm
- First Name: Frank
- Last Name: van Ekeren
- * REQUIRED* Type and Year of Model Ts owned: 1916 touring, 1916 pick-up, 1924 coupe, 1926 touring, 1927 touring
- Location: Rosedale Vic Australia
Re: mystery connecting identity
Now I'm not saying it is, (because I've never seen one) but before the part # 3024 rod from 1909 on, was a rod that parts book shows as having no clamp but a bush and wrist pin with a hole at one end + a screw and cotter pin for the piston. Also on that rod was a dipper cap, can't see that on yours but it does look to be a DB style cap.
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- Posts: 3873
- Joined: Fri Feb 12, 2021 12:24 pm
- First Name: john
- Last Name: karvaly
- * REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
- Location: orange, ca
- MTFCA Number: 14383
- Board Member Since: 2020
Re: mystery connecting identity
Must be of the late 27 style. There was a very light steel round dome piston, common to the x rod. That piston pin "Floated" like an A. This must be a pre X rod for those late pistons.
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Topic author - Posts: 849
- Joined: Tue Jan 08, 2019 9:58 am
- First Name: Gene
- Last Name: French
- * REQUIRED* Type and Year of Model Ts owned: 1926 Roadster pkup.
- Location: Nunn, CO
- MTFCA Number: 15614
- Board Member Since: 2014
Re: mystery connecting identity
i had thought of the later style rod ... i have only seen the X type with integral oil dipper on the cap ... this cap is of the common type without any dipper ... the big end is drilled and X grooved as would be common with re-conditioned rods ... these are from an obsolete inventory from a closed auto parts store ... thanks for the info. ... i will continue to check in my old parts catalogs and re-builders reference books ... will post any info. i find ...always an optimist...Gene French
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- Posts: 4144
- Joined: Tue Jan 08, 2019 7:31 pm
- First Name: Dan
- Last Name: Hatch
- Location: Alabama
- MTFCA Number: 49974
Re: mystery connecting identity
Check in service bulletins, I think there was something about the steel piston and rods in them.
Wish some one would print them again, like the MTFCI did. Dan
Wish some one would print them again, like the MTFCI did. Dan