140 horse piston rods.

[rolmops]

So I am busy rebuilding a 140 horse engine and the usual f-ups happen.
So far I destroyed a piston and damaged a piston rod.
Looking for a piston rod turns out to be a bit of a challenge. Specially when you do not know for sure which year the engine is from.
As it turns out, from the mid sixties up to 1982 piston rod #613-3817 is used and then it changes to #613-2277.
My question is: How can I see the difference between the different piston rod sizes? It seems that there are no numbers stamped on these parts.
As always,thank you for your help.
Cornelis

 

[achris]

Re: 140 horse piston rods.

Ummmm, my parts drawings show the same rod used from 1972 all the way up to 1998 (the 613-3817 number)... And the same piston (standard size) from 1968 to 1989 (733-803850T)...

HTH

Chris......

BTW, I looked up the other number, 613-2277, and that's a rod for the smaller 2.5 litre engines...

 

[fishrdan]

Re: 140 horse piston rods.

The 140HP engines had small journal and large journal cranks, 2 different rods due to the different journal size. I'm not sure what the 2 journal sizes are without digging........................ (Though I do know I have the large journal crank in my engine :joyous

 

[rolmops]

Re: 140 horse piston rods.

I got lucky on the on the rod,I found a good one in my junk pile.

 

[rolmops]

Re: 140 horse piston rods.

Today I finally got the engine running, that of course was after a hundred and eighty degree mistake on the placement of the plug wires.
Oh well,live and learn.
Tomorrow the cracked block will come out and the rebuild one will go in.
Cornelis.