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Integra on jack stands, no load, making horrible noise and shaking the motor/tranny.
I posted this in the transmission forum but Drag Racing gets way more traffic...so i figured id try it in here....
Ill try to describe this the best way i can... I blew up a diff in my stock LS tranny. Car is making 700+hp. Has been a 10.70@142 on a bone stock LS trans. Well, put a new diff in the stock trans and checked everything out and it seemed good. Had a Honda Tech that is the tranny guy for Appleway Honda here in Spokane come by and check it out and said everything looked good. Put the tranny in and with the car on jack stands in gear, it made a horrible chunking sound coming from the diff area. Never went and drove it. So picked up another bone stock LS tranny that came out of a good running car. Put it in and getting the same thing. Start off in 1st gear and its fine, 2nd is fine, 3rd starts to make some noise and shake the motor, 4th is worse, and 5th is really bad. This is at idle with no load. Was the same on both trannys. Went out and drove it and it drives absolutely fine. No noise, no nothing. So its just when its in the air with no load on it. I tried changing both axles and mid shaft. Im completely lost and never seen this issue. Its on a Comp twin disc and checked everything out every time i pulled it out. Everything on that looks good. It seems the faster the diff is spinning the more noise it makes but its just at idle. If you rev it up and put it under a load everything seems fine. Any ideas? Just took it on a 60 mile drive and didnt have 1 single issue or noise. Shifts perfectly at 9500RPM. It does seem to be better after the drive. But there is no axle binding while its in the air, no brake dragging issues....everything is in perfect working order. Heres a vid of the noise while its in 5th gear. |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by a1320honda
(Post 48850188)
I posted this in the transmission forum but Drag Racing gets way more traffic...so i figured id try it in here....
Ill try to describe this the best way i can... I blew up a diff in my stock LS tranny. Car is making 700+hp. Has been a 10.70@142 on a bone stock LS trans. Well, put a new diff in the stock trans and checked everything out and it seemed good. Had a Honda Tech that is the tranny guy for Appleway Honda here in Spokane come by and check it out and said everything looked good. Put the tranny in and with the car on jack stands in gear, it made a horrible chunking sound coming from the diff area. Never went and drove it. So picked up another bone stock LS tranny that came out of a good running car. Put it in and getting the same thing. Start off in 1st gear and its fine, 2nd is fine, 3rd starts to make some noise and shake the motor, 4th is worse, and 5th is really bad. This is at idle with no load. Was the same on both trannys. Went out and drove it and it drives absolutely fine. No noise, no nothing. So its just when its in the air with no load on it. I tried changing both axles and mid shaft. Im completely lost and never seen this issue. Its on a Comp twin disc and checked everything out every time i pulled it out. Everything on that looks good. It seems the faster the diff is spinning the more noise it makes but its just at idle. If you rev it up and put it under a load everything seems fine. Any ideas? Just took it on a 60 mile drive and didnt have 1 single issue or noise. Shifts perfectly at 9500RPM. It does seem to be better after the drive. But there is no axle binding while its in the air, no brake dragging issues....everything is in perfect working order. Heres a vid of the noise while its in 5th gear. Tranny noise - YouTube |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Definitely not a TOB, i put one of those in in betweeen the tranny changes to a brand new one. The "old" one that had 900 miles on it was in good shape as well. The noise is very predominant in the diff area of the tranny. But i appreciate the reply man.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
did you spin the diff after the install to ensure that it wasnt making contact with anything at all. some people shave the fins around the rotation area to ensure there is no contact.
ill guarantee if you pull it apart you will know exactly what the issue is. bottom line is the tranny needs to be dropped again so just pull it apart and inspect man |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
unless i missed it, tranny 1 that you rebuilt is making noise and tranny 2 which is stock never opened is making same noise?? very high chances both trans have same issure.. maybe its somethings else. were are the jack stands? un the suspension componets or pinch seam? maybe the suspension droop is causing CV to hit something?
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
are you doing this with the CV axles hanging down unsupported? you know you shouldnt run them like that, it's not like running a rear wheel drive car with a rear end on stands, I know people who have exploded CV axles doing this
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
If you took it on a 60 mile ride with no noise and no shifting or drivabilitly issues, what exactly is the problem??? im kind of not following you here.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by sanman000719
(Post 48850689)
did you spin the diff after the install to ensure that it wasnt making contact with anything at all. some people shave the fins around the rotation area to ensure there is no contact.
ill guarantee if you pull it apart you will know exactly what the issue is. bottom line is the tranny needs to be dropped again so just pull it apart and inspect man The 2nd tranny was pulled from an 80k mile 98 integra. Drove that car around for about 50 miles before purchasing. I know theres no issues with that one. |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by boostedgeezer
(Post 48850746)
If you took it on a 60 mile ride with no noise and no shifting or drivabilitly issues, what exactly is the problem??? im kind of not following you here.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by lostforawhile
(Post 48850769)
exactly, I think the inner cv axle was at an extreme angle, and was making a bunch of noise, if they are hanging down while the car is up in the air, this is the equivalent of the angle they would see if the car was airborne
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
sounds like starter not disengaging hitting the flywheel.
Crank the car and then remove the starter while its running ;) |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by SPOOLINmatt
(Post 48851178)
sounds like starter not disengaging hitting the flywheel.
Crank the car and then remove the starter while its running ;) |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
louder from the gear casing or the bell housing with a stethoscope? Have you checked the flywheel bolts just in case?
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
um dumb question what does your oil look like in the motor but it sounds like rod knock but have u checked everything i would look there also
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
I had a similar noise with mine in the air too. I watched the axle and it was flopping around. The Diff in my trans is screwed. With my axle fully seated you can wiggle the inner shaft ~1/4" up and down. I pulled the axle out and the spider gear could be wiggled up and down by fingers... The guy I purchased the tranny said there were no issues, which i believe it was probably fine just driving around, bu in the air with no load on the axle it highlights the issue.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Flywheel bolts are all good. Its not an RPM related noise. Its actually very inconsistent. Ive swapped out axles and mid shaft. There is little not no wiggle room in the axle. Its definitely not a motor issue. With the car out of gear there is no noise. Motor runs fine. Definitely not a rod knock though.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by a1320honda
(Post 48851923)
Flywheel bolts are all good. Its not an RPM related noise. Its actually very inconsistent. Ive swapped out axles and mid shaft. There is little not no wiggle room in the axle. Its definitely not a motor issue. With the car out of gear there is no noise. Motor runs fine. Definitely not a rod knock though.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
What diff are you using?
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Pull the axles and do the same test. See if it still makes noise....
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
^^^^next step obviuosly, but did you measure out your tolerance when replacing the diff? Could be rattling around in there, making the noise.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Defiantly sounds like metal to metal contact. When you drained the trans fluid from the first transmission that made this noise did you notice anything? Come out clean?
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Its a stock open diff. I tried putting the jack stands on the suspension so it was still on the weight of the car. Still the same noise. No metal in the fluid. Had the car back on the dyno yesterday and made 716whp at 26lbs. not one single noise or issue.
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
so it only makes noise while on the jack stands??? but is fine on the dyno??
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Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Lol, i would forget about it at this point
You should hear a dog box when it's unloaded, Sounds like a rock tumbler...... |
Re: Integra on jack stands, no load, making horrible noise and shaking the motor/tran
Originally Posted by sanman000719
(Post 48856059)
so it only makes noise while on the jack stands??? but is fine on the dyno??
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