hi all
bit of a problem and have limited cash need some advice, i was losing compression on piston 3 so stripped the block to find a bit of piston had broke bettwen the 2 comp rings. it is the phase 2 power engineering engine. now i brought 2 pistons out of a phase 2 PE engine(second hand) to replace the 2 that have gone. i receved them today and the problem i have got is that the diameter is different mine are 82.855 and the ones i have brought are 83.105 the question is can i still use these in my engine if i have the compression to match in all cylynders with out to much problems, i know this is not the best way of doing things but is it possible.

thanks in advance juff

 

were the bores the same? (guessing you cant be sure asking who you got the pistons off to measure correctly)

 

4 pots all the same bore,
remove two and replace with two oversize pistons!!!!!!! u sure!!!!!lol

 

Aaroncast
hone the 2 bores out 10 thou to put the new ones in and check and alter comp where needed 2 make all 4 pots all equal but would this cause me problems if so what please answer if your not going to be childish.

1.9 xr2 on 40's
not sure to be honest

 

It would work,


but the 2 larger pistons will have a slight CC advantage, so the engine wont be very smooth.


Cant you buy the another 2 pistons you didn't buy?

 

no there nackered both have damage
cheers juff

 

Ive just picked up a s2 for some bits there is 4 pistons in the boot was going to keep them but I can measure them for you if thats anygood they are yoused but 3 of them have no marks on them.

 

do you know what they are off and if you could measure them it would be a help. the pistons out the power engeneering engine is out of a merc as far as i know thanks and much appreciated
juff

 

I will have a look tommorw night think they are just standnrd ones