je piston question

[David-Starlet]

have a set of je pistons but there i no groove in them to fit the clips for holding the gudgen pins in. are they a press fit? the pins wont push through the pistons by hand but will push through the rods

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[bongskag]

what rods are they?

 

[David-Starlet]

forged scat rods the pins slides through the rod perfect

 

[mork]

It's the rod that contains the press fit, not the pistons. They need to rotate freely on the pin.

 

[David-Starlet]

It's the rod that contains the press fit, not the pistons. They need to rotate freely on the pin.

thats on standard rods. the scat forged rods are floating.
the standard gudgen pins slide through the je piston freely just checked so the aftermarket ones must be an interference fit. can anyone whoes running je pistons confirm this?

 

[Skalabala]

Looks like you have an incompatible forged set
Send in the rods to make it a press fit?

 

[lukep]

My JE pistons came with clips and the scat rods are bushed.

 

[David-Starlet]

Looks like you have an incompatible forged set
Send in the rods to make it a press fit?

can i not just get the pins pressed into the pistons and leave the rods floating?

 

[lukep]

putting pressure on the piston like that will most likely crack it if not will defo egg shape it. do it right dude you dont want to break expensive pistons like that.

 

[David-Starlet]

putting pressure on the piston like that will most likely crack it if not will defo egg shape it. do it right dude you dont want to break expensive pistons like that.

ye ill bring it out to an engine builder i know during the week and see what he advises to do

 

[steve-gers]

Says here there for use on std conrods with interference fit pins.

 

[lukep]

yeh press into std rods. he talking about pressing in to the piston where there not ment to.

 

[steve-gers]

ah i see

 

[Skalabala]

Where did your pins come from?
If the pins are the original JE ones then it should be fine to press them at a reputable place

 

[steve-gers]

Some guy on uksc boiled his so that the pin went in lol.

 

[Tim@TBDevelopments]

je pistons should always have a retaining grove for the spring clip.

Tim

 

[grum-glanza]

put the pins in a frezzer for a few days make them realy realy cold if you have some liquid nitrogen lying around would work perfect but they should slide into the piston as long as there not way too bad for the piston it might be cheaper then getting them pressed