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resra

Can anyone identify what type of pistons these are?

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(edited)

Greatly appreciate it if you can point me to the right direction. In 20+ years I haven't seen these and I can't find any valve damage on the e12 head but are those valve touching the pistons mark? Marks are identical on all four pistons and I never noticed any slapping noise or anything unusual before. Just took it out to replace headgasket and give it a refresh. 

piston.jpeg

Edited by resra

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Yup- they look like the 1.8i design.   If the valves hit there, it's not the piston's fault-

unless they're mounted on a 2L crank.

 

THEN you have issues!

 

t

 

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Thanks guys! No wonder I never seen these because I never seen a 1.8 apart. 

As for the crank i'm not sure but it is the original 2.0 block to the car with matching VIN. Previous owner must have done this 1.8 piston swap when rebuild. 

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Can't be 1.8i pistons with 2L crank-

they'd pop 6mm or so out of the block!

 

pin height's too low.

 

sorry, you've most likely got a 1.8l crank.

 

Or Ireland 2l 1.8i hybrids.

 

t

 

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Those are pistons from a 1.8 block.  You cant use those pistons with a 2.0 crank,  the skirts(or rods, i forget which) are longer on that piston combo and it will push the piston out the top of the block about a 5 mm.

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Neither the rods nor the skirts are longer- 

the pin is lower in the piston (dumb) to make up the loss in stroke.

 

t

 

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