I've forgotten (!) how my pistons were orientated when I took them out. I have a 2L block.
One side of the con rods say Fiat... Which way should they be put back in... Anyone?
Piston alignment
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AZ79
Re: Piston alignment
I'm thinking the FIAT mark goes towards the back... the indents on top of the piston align smaller for exhaust valve and larger for intake. 
Or the other way around, I guess
Or the other way around, I guess
Last edited by AZ79 on Thu Feb 16, 2012 1:07 pm, edited 1 time in total.
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AZ79
Re: Piston alignment
Just to mention- it was Thursday 11:00 am when I ordered what must have been the last set of standard rod bearings anywhere. I paid 27.00 extra for 2 day shipping. It's 7:50 pm Saturday night, Monday is a holiday, my mail doesn't arrive until 5 or 6 in the evening anyways, and yeah, it looks like Wednesday at best for putting these pistons in.... After thinking I had everything. Glad I could pay that extra $ for shipping!
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vandor
- Posts: 3996
- Joined: Sat May 23, 2009 1:23 pm
- Your car is a: 1971 124 Spider
- Location: Texas, USA
Re: Piston alignment
Correct, the intake valve relief is larger.AZ79 wrote: the indents on top of the piston align smaller for exhaust valve and larger for intake.
The numbers stamped into the conrods which tell which cylinder they are for faces toward the exhaust side.
Last edited by vandor on Sun Feb 19, 2012 11:41 am, edited 1 time in total.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town