SS/SC rods & JE Pistons part 2
05-26-2009, 03:12 PM
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SS/SC rods & JE Pistons part 2
once again, as the title states thats wat i have. the new issues is that i dont have the wrist pin bearings. i wanna know if i would have to find the bearing from a SS/SC, LS, or call JE for them
05-27-2009, 07:18 AM
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You're running LSJ rods with a L61 2.2 crank ?
Interested to know a bit more as this is my plan too
EDIT : hum, actually reading the first part of this topic, I am not sure you got the good pistons
What pistons did you bought ? Were these for a 2.2 ? If this is the case, they are not the ones you'll need...
Interested to know a bit more as this is my plan too
EDIT : hum, actually reading the first part of this topic, I am not sure you got the good pistons
What pistons did you bought ? Were these for a 2.2 ? If this is the case, they are not the ones you'll need...
Last edited by alanoo; 05-27-2009 at 09:19 AM.
05-27-2009, 12:37 PM
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i bought them from a friend of mine on this sight who got the engine from HalfCent. and i guess the pistons will only work wit the LSJ rods. so i got them to rebuild my engine since i spun a bearing (freak accident). but the rods do mate to the crankshaft, i spoke wit my friend whos rebuilding my engine and he said they work and as for the wrist pin all im missin is the bearings and everything will be fine. so yea, they work. also if you look in the swappable parts section it shows wat parts from the LSJ will work on the L61, which includes the LSJ rods and LSJ pistons in which case the pistons i have are an upgrade from the LSJ pistons
05-27-2009, 02:36 PM
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The LSJ rods and L61 rods have the same diameter at the crank side, but a different one at the pin size.
The LSJ rods are longer too, they are swapable on a L61 crank ONLY WITH SPECIFIC PISTONS (which are not LSJ pistons nor 61 ones).
It is wierd you have LSJ rods without their bush, these are normally pressed and shouldn't be removed at all. I believe you may have wrong pistons... L61 ones with their smaller diameter pins which is why you have your play issue.
Even if you sort the pin size difference issue, these CANNOT be used with LSJ rods on a L61 crank, because the rods are longer you'll transform 8:1 pistons in 11.5:1 ones and kill your valves instant.
Same thing, if these are LSJ pistons, you CANNOT use them with a L61 crank too, same kind of issue, but these should not be LSJ pistons as the pin size is good on these ones.
Give us some more details / pics / box references so we can be sure
The LSJ rods are longer too, they are swapable on a L61 crank ONLY WITH SPECIFIC PISTONS (which are not LSJ pistons nor 61 ones).
It is wierd you have LSJ rods without their bush, these are normally pressed and shouldn't be removed at all. I believe you may have wrong pistons... L61 ones with their smaller diameter pins which is why you have your play issue.
Even if you sort the pin size difference issue, these CANNOT be used with LSJ rods on a L61 crank, because the rods are longer you'll transform 8:1 pistons in 11.5:1 ones and kill your valves instant.
Same thing, if these are LSJ pistons, you CANNOT use them with a L61 crank too, same kind of issue, but these should not be LSJ pistons as the pin size is good on these ones.
Give us some more details / pics / box references so we can be sure
05-27-2009, 03:20 PM
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ill have to have my friend send me pics so i can upload them. compression wise, the pistons are stock compression.
and from wat i was told hunter, they were specific
and from wat i was told hunter, they were specific
05-28-2009, 05:08 AM
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I know that but well JE does lots of pistons for the ecotec platform, for any engine in the family
better be sure...
05-28-2009, 07:45 AM
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Engine:
Exhaust Manifold
Downpipe
Exhaust
Intake Manifold (Will Physically fit but TB will not bolt up)
#32 Injectors Fit Leak free, Tuning is needed.
Pistons
Rods
Valve Springs
Supercharger and Throttle Body with Intake Manifold (tunning needed)
Drive Belt
Exhaust Manifold
Downpipe
Exhaust
Intake Manifold (Will Physically fit but TB will not bolt up)
#32 Injectors Fit Leak free, Tuning is needed.
Pistons
Rods
Valve Springs
Supercharger and Throttle Body with Intake Manifold (tunning needed)
Drive Belt
05-28-2009, 08:13 AM
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Well, this is a mistake, rods would fit as I said, with special pistons
Pistons would phisically fit on the rods, they'll just kill the head at the first engine turn.
EDIT : from the same topic, from Maven : https://www.cobaltss.net/forums/show...&postcount=169
Pistons would phisically fit on the rods, they'll just kill the head at the first engine turn.
EDIT : from the same topic, from Maven : https://www.cobaltss.net/forums/show...&postcount=169
You cant swap pistons and rods between different size engines. The reason is because all 3 displacements(2.0, 2.2, and 2.4) each use a different length rod, and piston with a different pin height, also the 2.4 has a large bore than the 2.0/2.2 so the pistons wont even fit in the cylinder.
IE: you cant put LSJ pistons and rods in an L61 You cant put LE5 pistons and rods in an LNF, you cant put L61 rods/piston in an LSJ
In order to mix/match pistons and rods amongst the engine you need to use one stock part and one custom part. for eample if you wanna put LSJ rods in an L61( a reasonable upgrade) youll need to get custom pistons made.
IE: you cant put LSJ pistons and rods in an L61 You cant put LE5 pistons and rods in an LNF, you cant put L61 rods/piston in an LSJ
In order to mix/match pistons and rods amongst the engine you need to use one stock part and one custom part. for eample if you wanna put LSJ rods in an L61( a reasonable upgrade) youll need to get custom pistons made.
05-28-2009, 11:42 AM
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hmmm, takin into consideration. ill check up wit my friend and see how far hes got then ill have him take it to a machine shop. first ima do a little more research into the pistons and make sure i got my info correct
ima check my info cause now im confused as to if the pistons were made for the L61 or made for the rods
ima check my info cause now im confused as to if the pistons were made for the L61 or made for the rods
Last edited by BlackCobalt707; 05-28-2009 at 11:42 AM. Reason: Automerged Doublepost
05-28-2009, 01:02 PM
#16
Well, this is a mistake, rods would fit as I said, with special pistons
Pistons would phisically fit on the rods, they'll just kill the head at the first engine turn.
EDIT : from the same topic, from Maven : https://www.cobaltss.net/forums/show...&postcount=169
Pistons would phisically fit on the rods, they'll just kill the head at the first engine turn.
EDIT : from the same topic, from Maven : https://www.cobaltss.net/forums/show...&postcount=169
05-28-2009, 01:07 PM
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Well he's quoting the sticky topic on this section where it is written the pistons and rods are swappable (which is wrong), so I assumed he believed it was the cas as it was in this topic.
I am also not certain at all he has the right pistons because he seems to have major play between the rod and pin, and I doubt he has unbushed LSJ rods, this is unlikely, that lead me to believe these pistons have an L61 sized pin
I asked for the correction to be made in the sticky btw...
I am also not certain at all he has the right pistons because he seems to have major play between the rod and pin, and I doubt he has unbushed LSJ rods, this is unlikely, that lead me to believe these pistons have an L61 sized pin
I asked for the correction to be made in the sticky btw...
05-28-2009, 01:26 PM
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i think the play is like you said coming from the bushings, but im sure with the bushing it will be fine. you think if i had my friend check the TDC and see how far up it sticks out that could tell me if its the right ones or wrong ones?
im still waitin on the dude i bought the stuff from to reply.
this wat my friend who sold me the engine said on friday
"Thats crazy. I spoke with Halfcent personally. And he told me those JE Pistons require and work with the SS/SC rods only. And that no other rod would work correctly with them. I'll have to shoot him a PM and see what he says."
im still waitin on the dude i bought the stuff from to reply.
this wat my friend who sold me the engine said on friday
"Thats crazy. I spoke with Halfcent personally. And he told me those JE Pistons require and work with the SS/SC rods only. And that no other rod would work correctly with them. I'll have to shoot him a PM and see what he says."
Last edited by BlackCobalt707; 05-28-2009 at 01:26 PM. Reason: Automerged Doublepost
05-30-2009, 07:58 PM
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ok let me clarify, the part i was talkin about is the piston pin. there is movement between the piston pin and rod. is this or is this not supposed to happen. if not how can i fix it? new rods or get bushings?
05-30-2009, 10:17 PM
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FULL-FLOATING pins are not secured to either the piston or the connecting rod. Pins of this type may be held in place by caps, plugs, and snap rings, or spring clips which are fitted in the bosses. (See fig. 4-12.) The securing devices for a full-floating pin permit the pin to rotate in both the rod and piston pin bosses. Of the three types of piston pins, the full-floating piston pin is the most common.
05-31-2009, 05:40 AM
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i dont recall hearing of "full floating" wrist pins but i believe ive heard of "floating" wrist pins. i just wanna make sure i got my stuff right cause i dont wanna blow my engine and waste a **** ton of money. i wanna get it done right the first time so thats why im diggin for information.
06-01-2009, 08:18 AM
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both. im waitin for my friend to take it to a machine shop and see wat they can do. ima see if it can get bushed. and im waitin for pics, when he sends them i will post so you can see wat im talkin about
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