These pistons came out of motor that was rebuilt in the 60’s. No identifying makes other than “184” on the inside lip. Has strange relief around the wrist pins. Should I reuse them?
Tom
Help identifying alum pistons
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- Posts: 4957
- 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, 1920 Dodge touring, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- MTFCA Number: 52564
- Board Member Since: 1999
Re: Help identifying alum pistons
How are the boars? What size are they? How did the car run before taking it down? Don't know who made them, but look to be somewhere between the cast iron and modern aluminum pistons weight wise. Cant tell from the photos, are the rings the larger 1/4" type or narrower? If narrower might want to make sure they are a size that can be found. While others will differ, if everything fits good, I would go ahead and used them. How you drive and how much you drive your car may or may not come into the picture.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
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- First Name: Joe
- Last Name: Bell
- * REQUIRED* Type and Year of Model Ts owned: 24 Fordor
- Location: Tiffin Ohio
- MTFCI Number: 24066
Re: Help identifying alum pistons
Look like Jahn's pistons
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- First Name: DAN
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- * REQUIRED* Type and Year of Model Ts owned: too many. '14 touring, 2 depot hacks, 2 speedsters
- Location: ALAMEDA,CA,USA
Re: Help identifying alum pistons
Not Jahns- they never made a split skirt piston- T slot yes, split skirt-no. Those are pretty crude castings even by Jahns standards. Also the side reliefs are not typical of a Jahns. Hope that helps.
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- Posts: 4111
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- First Name: Dan
- Last Name: Hatch
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Re: Help identifying alum pistons
Check your piston pin clearance. Just had an engine in here with same piston, piston pin holes were worn bad. Dan