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| Forum name | Performance/Engine |
| Topic subject | wrist pins wrong size? |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=79951 |
79951, wrist pins wrong size? Posted by CJ_96RS, Sep-01-04 04:14 AM
Hi, I just noticed that two of the wrist pins I got with my Eagle rods are 2.5" long, the other two are 2.25", this is obviously wrong, but I just wanted to make sure before I chew somebody's ass about it. Anyone who has Eagle rods, how long are your wrist pins?
Thanks.
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79957, RE: wrist pins wrong size? Posted by DarkOne, Sep-01-04 06:05 AM
Look on the spec sheet that came with your pistons. Wrist pin diameter and length will be written down on that.
Sounds like you got some incorrect parts.
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79979, RE: wrist pins wrong size? Posted by Star Turbo Talon, Sep-02-04 02:46 AM
the wrist pins that came with my JE pistons are all the same length, pins didnt come with my rods.
Terry
96 Eagle talon ESI Greddy header - Greddy exhaust
97 Eclipse Star Stage II - Boost/oil/EGT gauges - Apexi N1 3" exhaust - SFMU/return line - Apexi SAFC - Stage 2 6 puck Sprung hub MIBA clutch - Shortened shifter - Koni Yellows w/eibach prokit - Stillen Fr/Rr swaybars - ceramic intake - DEI Keyless entry alarm - Niche 17" Shoks
Waiting to be installed: HKS EVC IV, 450 Turbo injectors, GSX Front brakes (need rotors)
Mitchell on Demand copies available
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79991, RE: wrist pins wrong size? Posted by thedawg, Sep-02-04 09:45 AM
Um... wrist pins don't come with rods. They come with pistons.
There are two 8.8:1 JE pistons part numbers for our car. One is the old version, and the other is a newer version with a shorter wristpin.
OLD JE P/N: 168612 NEW JE P/N: 208476
Old Pin length: 2.500 New Pin length: 2.250
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80009, RE: wrist pins wrong size? Posted by turbo8u, Sep-02-04 01:00 PM
just shave it, thats what i had to do with my wisecos
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80064, RE: wrist pins wrong size? Posted by thedawg, Sep-03-04 11:13 AM
Since he bought them new, he should get the right parts, IMO.
I'm not even going to go into how bad of an idea it is to shave a precision machined part like this.

The new piston has a smaller wristpin because it has a smaller base to accomodate it. Get the wristpin that is appropriate to whichever version of pistons you have.
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80068, RE: wrist pins wrong size? Posted by turbo8u, Sep-03-04 11:25 AM
i only shaved about a few MM off my wrist pins, its not a 'precision machined part' really and all it needs to do it fit between the two gaps for the pin locks. in your case i would get the proper wrist pins because the ones you got are significantly different. mine were machined wrong, so i fixed them with a valve face grinder and called it a day.
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80286, RE: wrist pins wrong size? Posted by CJ_96RS, Sep-08-04 09:28 AM
Thanks, guys. I'm getting my rotating assembly balanced tomorrow anyway, so I just put a grinder on them till the micrometer read 2.249, and put a little taper on the outside corner to approximate the other side. They seem pretty snug in the piston. Lesson: Don't buy your internals on eBay if you're not willing to wait a couple months for the seller to fix his mistake.
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80287, RE: wrist pins wrong size? Posted by turbo8u, Sep-08-04 09:30 AM
Originally posted by CJ_96RS anyway, so I just put a grinder on them till the micrometer read 2.249, and put a little taper on the outside corner to approximate the other side. They seem pretty snug in the piston.
right on man :thumbsup...exactly what i did. its not like you weakened them at ALL either.
get a pic ;) i wanna see how you did it compared to what i had to do
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