LSJ T6061 Aluminum Crankshaft Pulley

[-MD- HHR]

JBP, According to your website your LSJ crank pulley is listed to fit. "LSJ, LE5, L61, LNF".
This is not true. Yes the pulley will physically bolt onto any ecotec crank, but the LE5 and L61 pulley grooves centerline offset is different than the LSJ and LNF centerline. This in time will eat belts. Also there are other slight differences in the pulleys. I'll post pics later tonight or tomorrow. Most L61 cranks are the same, but there are two diameters. Also the Solstace / Skys are different due to the power steering pump pulley being incorporated into the crank pulley which further move the belts. Also the Outside Diameter of the LSJ is different then the LE5 / L61, and LNF cranks.

Furthermore the 8 bolt LSJ crank spacing is different than the 6 bolt LNF, L61, and LE5 crank spacing.

[116Fanatic]

Originally Posted by -MD- HHR

JBP, According to your website your LSJ crank pulley is listed to fit. "LSJ, LE5, L61, LNF".
This is not true. Yes the pulley will physically bolt onto any ecotec crank, but the LE5 and L61 pulley grooves centerline offset is different than the LSJ and LNF centerline. This in time will eat belts. Also there are other slight differences in the pulleys. I'll post pics later tonight or tomorrow. Most L61 cranks are the same, but there are two diameters. Also the Solstace / Skys are different due to the power steering pump pulley being incorporated into the crank pulley which further move the belts. Also the Outside Diameter of the LSJ is different then the LE5 / L61, and LNF cranks.

Furthermore the 8 bolt LSJ crank spacing is different than the 6 bolt LNF, L61, and LE5 crank spacing.

Ok, i think this guy might be right...I just had a HECK of a time installing this on my LE5...now that it is installed my crank pulley WOBBLES! Its torqued down! What is going on??? Could this be because of the "Centerline offset"????? Can I get my money back if its not gonna work?

EDIT-MY FAULT!!! I DIDNT LINE UP THE WOODRUFF KEY

[silverfae7]

I installed the pulley on my 2.4 yesterday with absolutely no problem. Took about 15 minutes. If you measure the LE5 pulley against the JBP one, the offset is exactly the same and so is the diameter. The belt will run on the inner grooves and the outer one will not be used. It fits perfectly on my engine. Great product JBP!!

[ItalianJoe1]

Originally Posted by -MD- HHR

JBP, According to your website your LSJ crank pulley is listed to fit. "LSJ, LE5, L61, LNF".
This is not true. Yes the pulley will physically bolt onto any ecotec crank, but the LE5 and L61 pulley grooves centerline offset is different than the LSJ and LNF centerline. This in time will eat belts. Also there are other slight differences in the pulleys. I'll post pics later tonight or tomorrow. Most L61 cranks are the same, but there are two diameters. Also the Solstace / Skys are different due to the power steering pump pulley being incorporated into the crank pulley which further move the belts. Also the Outside Diameter of the LSJ is different then the LE5 / L61, and LNF cranks.

Furthermore the 8 bolt LSJ crank spacing is different than the 6 bolt LNF, L61, and LE5 crank spacing.

Wait, the LNF uses a 6-bolt crank? Thats odd...

[116Fanatic]

I apologize, it was my fault, JBP made a great product

[brutus.nova]

I hate to bump this post up again but i think i have some information that never got brought up.

about a week ago i was driving to hartford ct for work. I noticed that my cobalt was leaking oil right after i got the low oil light. so I checked over the car and realized there was a decent oil leak... Well thank god for AAA got it towed back to the shop. We pull the shroud off underneath the motor and starting looking for the leak. Thought maybe it was main bearing seal but there was no leak behind the pully... just in front. So we pulled the belt and then the pully (OH BTW THE BOLT WAS FUCKING HAND TIGHT) and found out that the key way from the crank to the crank pulley had snapped. Looked at the pulley and then saw that the key slot was in a shape of a V. So after about a week of investigating... I talked to a friend of the dealer and she told me about the Crank bolt prolly got reused when the lower end was rebuilt because of the recall on the piston rings. That was 13000 miles ago so it may not show right away but if you reuse that bolt it will come loose and cause this problem. So now because the Stock pulley is on a 3-4 month back order. I am just going to get a JBP pulley if i could just find someone to sell me one in the US.

If anyone can think of something else that could be wrong with this situation that I overlooked please let me know. sorry if you get mad for this forum bump...

Justin

[07MetallicSC]

dear god dont buy from jbp, buy from MRZ they fixed jbp's problem

[87gn06gto07irl]

after reading this im glad i paid 80 new for mine from a fellow member.