Fadanza Aluminum Flywheel/Lq9 Problems, need advise ASAP.
#1
Fadanza Aluminum Flywheel/Lq9 Problems, need advise ASAP.
I attempted to install my Fadanza aluminum flywheel today and noticed the bolts bottomed out before pulling the flywheel flush to the crank. I noticed the OE flex plate has a thin spacer on the back. Is there a flywheel spacer required for this application? My Lq9 6.0 engine is a 2002 model. Any advise is greatly appreciated.
Last edited by 52 Rat; 12-06-2009 at 05:20 PM. Reason: Spelling change
#5
Do you have a Fidanza aluminum flywheel or OE? My OE flywheel bolts have a shoulder and the bolt bottoms out before pulling the flywheel to the crank. The counter bore in the aluminum flywheel may be a little deep. I guess I can use washers under the bolts. I assume the Fadanza flywheel would be OE spec. I thought I need flywheel bolts so I went to the dealer to purchase flywheel bolts and they said the flywheel and flex plate used the same bolts.
Last edited by 52 Rat; 12-06-2009 at 07:37 PM. Reason: info
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#9
I don't have any LS1 flywheel bolts to compare to. The parts guy at the GM dealer said the bolts were the same for the LS1 and Lq9. I spoke with a engineer from Fidanza and he said their aluminum flywheel was the same thickness as the OE cast flywheel. He said I need a shorter bolt.
#10
Needs to finish car
iTrader: (1)
I've got this flywheel, but it's on an LS2. If your LQ9 originally came with a 4L80E attached to it, it should have a spacer between the crank and the flexplate that is about 1/4" thick. If that was there the bolts will definitely be too long.
The crank in your LQ9 should be the same as just about every LS motor out there with the exception of 4.8s, LS7s, LSAs, LS9s and LS3s with dry sump oiling.
I'd replace the bolts when I replaced the flywheel, as a precaution, anyway. They do come with some type of threadlocker on them, and I'd really hate to see these bolts back out.
The crank in your LQ9 should be the same as just about every LS motor out there with the exception of 4.8s, LS7s, LSAs, LS9s and LS3s with dry sump oiling.
I'd replace the bolts when I replaced the flywheel, as a precaution, anyway. They do come with some type of threadlocker on them, and I'd really hate to see these bolts back out.
#11
I've got this flywheel, but it's on an LS2. If your LQ9 originally came with a 4L80E attached to it, it should have a spacer between the crank and the flexplate that is about 1/4" thick. If that was there the bolts will definitely be too long.
The crank in your LQ9 should be the same as just about every LS motor out there with the exception of 4.8s, LS7s, LSAs, LS9s and LS3s with dry sump oiling.
I'd replace the bolts when I replaced the flywheel, as a precaution, anyway. They do come with some type of threadlocker on them, and I'd really hate to see these bolts back out.
The crank in your LQ9 should be the same as just about every LS motor out there with the exception of 4.8s, LS7s, LSAs, LS9s and LS3s with dry sump oiling.
I'd replace the bolts when I replaced the flywheel, as a precaution, anyway. They do come with some type of threadlocker on them, and I'd really hate to see these bolts back out.
#12
TECH Fanatic
I had stated Lq9 but I meant Lq4; should be the same crank. My engine came out of a '02 2500 HD with a 4L80E trans. The flex plate does have a spacer on the crank side. The spacer is attached to the flex plate. I will look at it closer this weekend. What bolts did you use?
What trans are you using with the flywheel? You most likly just need the shorter bolts and no spacer unless using an earlier trans and clutch.
#13
I am using a 96' converted TL1 T56. I installed the LS midplate and input shaft. My Lq4 had a 4L80 trans. I'm going to get shorter bolts tomorrow. I ordered ARP flywheel bolts but they would not work with the aluminum flywheel. The ARP bolts have a thicker shoulder and would not seat properly.
#14
Needs to finish car
iTrader: (1)
Yep, shorter bolts and no spacer. That spacer is only used with the 4L80E, at least from a factory standpoint.
Bo185 is right, too; LQ9 means a 4L60 derivative. Doesn't matter since you've got an LQ4, anyhow.
I can see how the ARPs wouldn't work. The stock bolts almost seem like they won't fit into the hole in the flywheel, but they do, just snugly.
Bo185 is right, too; LQ9 means a 4L60 derivative. Doesn't matter since you've got an LQ4, anyhow.
I can see how the ARPs wouldn't work. The stock bolts almost seem like they won't fit into the hole in the flywheel, but they do, just snugly.
#16
TECH Fanatic