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Post by mpdxtreme on May 19, 2015 19:40:25 GMT -6
   Pulling the transmission on an '02 Sierra Z71. Doing all of this because the rear main is leaking like a sieve. This is one heavy hard to get out SOB. 3 hrs start till it was out. GG |
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Post by mpdxtreme on May 19, 2015 19:41:46 GMT -6
Anyone know what this thingy is? I think it's leaking also.  GG |
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Greg
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Post by Greg on May 19, 2015 20:08:13 GMT -6
Are you sure the rear main is leaking. I've done a bunch of oil leak work on 5.3s. It's usually coming from other places. The rear main is in the rear cover. Be careful lining up the rear cover when you put it back together. That part is a block off plate for an accesory oil line. Takes a separate gasket That cost about $3.
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Post by mpdxtreme on May 19, 2015 21:41:23 GMT -6
What are some other common leak points on the 5.3? Honestly the whole backside of the motor behind the bell housing is totally washed out and the owner said he was putting about a quart to quart and half a day in it.
GG
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Post by Off_Road_Teacher on May 19, 2015 21:58:55 GMT -6
Anyone know what this thingy is? I think it's leaking also. GG Oil cooler housing ? |
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Post by mpdxtreme on May 19, 2015 22:14:03 GMT -6
I'm most definitely NOT a GM fan.
Thx teach.
GG
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Post by N2DEEP on May 19, 2015 23:02:12 GMT -6
If you'll notice, the oil filter screws to the pan. This means that the pan gasket actually has pressurized oil running through it. When it leaks, it leaks a lot and makes a mess. I'd bet on it before the rear main.
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Greg
Full Member
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Post by Greg on May 20, 2015 6:57:57 GMT -6
What are some other common leak points on the 5.3? Honestly the whole backside of the motor behind the bell housing is totally washed out and the owner said he was putting about a quart to quart and half a day in it. GG Lol. A quart to a quart and a half a day. Really. Pull that bitch out and buy a junk yard engine that you hope has had a little maintaince done to it. That engine ain't leaking a quart a day without a hole somewhere. |
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Post by mpdxtreme on May 20, 2015 8:17:40 GMT -6
In the 10 minutes it took to get it situated on my rack I had an oil puddle the size of a plate on the floor.
GG |
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Post by N2DEEP on May 20, 2015 8:33:03 GMT -6
What are some other common leak points on the 5.3? Honestly the whole backside of the motor behind the bell housing is totally washed out and the owner said he was putting about a quart to quart and half a day in it. GG Lol. A quart to a quart and a half a day. Really. Pull that bitch out and buy a junk yard engine that you hope has had a little maintaince done to it. That engine ain't leaking a quart a day without a hole somewhere. But it can pump it out.... |
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Post by mpdxtreme on May 20, 2015 10:11:28 GMT -6
If you'll notice, the oil filter screws to the pan. This means that the pan gasket actually has pressurized oil running through it. When it leaks, it leaks a lot and makes a mess. I'd bet on it before the rear main. Did not know that. Somehow I have a feeling that'll I'll probably do the pan gasket as well just to be sure. Can it get any better??  |
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Post by N2DEEP on May 20, 2015 10:23:26 GMT -6
If you'll notice, the oil filter screws to the pan. This means that the pan gasket actually has pressurized oil running through it. When it leaks, it leaks a lot and makes a mess. I'd bet on it before the rear main. Did not know that. Somehow I have a feeling that'll I'll probably do the pan gasket as well just to be sure. Can it get any better?? I would. It's pretty simple. |
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Post by mpdxtreme on May 20, 2015 10:32:06 GMT -6
I just want it done right so he doesn't have to worry about it anymore.
GG
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Greg
Full Member
Posts: 330
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Post by Greg on May 20, 2015 10:45:09 GMT -6
Pan gasket for sure. it's easy, the factory gasket is riveted to the oil pan.
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Post by N2DEEP on May 20, 2015 10:54:01 GMT -6
And don't hesitate to pull that crossmember.
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Just remember...we give them back in 10 months 
Aug 15, 2015 10:21:43 GMT -6
Just remember...we give them back in 10 months 
Aug 15, 2015 10:21:43 GMT -6
It's alive!! 
