Why would my differential be hot?
Thread Starter
Drifting
Joined: Feb 2003
Posts: 1,614
Likes: 163
From: Davis CA
Why would my differential be hot?
I just came in from checking to see whether I had a 36 or 44. I have a 36. I discovered that the differential was hot. :reddevil How hot? Hot enough that the plastic tag at the fill hole has deformed and the pumpkin was hot to the touch an hour after driving. It's either friction or exhaust right?
There is space between the exhaust and the pumpkin (an inch?) but no heat shield. If internal friction, then is there anything to do? I did refill the diff a few months ago when I bought the car (GM products) and I believe that I got the mix right. I do recall that what came out was black but assumed that was normal for a Corvette.
How much space should there be between the pipe and pumpkin? Should there be a shield? Anyway to determine the cause of the problem.
Thanks in advance.
There is space between the exhaust and the pumpkin (an inch?) but no heat shield. If internal friction, then is there anything to do? I did refill the diff a few months ago when I bought the car (GM products) and I believe that I got the mix right. I do recall that what came out was black but assumed that was normal for a Corvette.
How much space should there be between the pipe and pumpkin? Should there be a shield? Anyway to determine the cause of the problem.
Thanks in advance.
Thread Starter
Drifting
Joined: Feb 2003
Posts: 1,614
Likes: 163
From: Davis CA
Re: Why would my differential be hot? (Chatman)
I have the answer. There was an exhaust leak that caused the plastic tab to deform / melt. I went ahead and replaced the oil w/additive just in case and the oil coming out looked OK. Good news. Well, the leak isn't such good news but that is a much cheaper fix than a fried pumpkin. :chevy
[Modified by Chatman, 5:53 PM 8/16/2003]
[Modified by Chatman, 5:53 PM 8/16/2003]
Drifting
Joined: Dec 2002
Posts: 1,474
Likes: 4
From: Tracy CA
Re: Why would my differential be hot? (Chatman)
Take it for another ride - It's likely that it will be just as hot as before.
I had a GMC 1500 truck with a 3/4 ton rear end that also got hot. I would use it towing and that's just the way it works. GM recommended synthetic rear end oil on towing applications.
Of course the vette weighs about 1/3 as much... Just keep an eye on it.
I had a GMC 1500 truck with a 3/4 ton rear end that also got hot. I would use it towing and that's just the way it works. GM recommended synthetic rear end oil on towing applications.
Of course the vette weighs about 1/3 as much... Just keep an eye on it.
