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post #1 of 19 (permalink) Old 04-28-2013, 12:32 AM Thread Starter
 
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Front diff service

About a month ago I drained the front diff and put on a new cover complete with gasket. What a PITA it was to get the diff cover off and back on again! Anyways, I used the gasket and rtv`d the pumpkin around the bolt holes. I also put locktite on the bolts when I reinstalled. I let the rtv sit for about 15min after install before I filled with the new gear oil. My problem is that about 2 weeks ago I noticed the front diff weeping. When I crawled under the truck The bottom 5 bolts had loosened off and oil was seeping out of them. It also appears to be leaking from the very bottom of the gasket. I thought this was a straight forward service, and am a little confused why it took 2-3 weeks to leak and now I can`t seem to stop it. Anyone have any tips for when I pull the cover and reseal it again? I only want to do this one more time. Thanks guys!

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post #2 of 19 (permalink) Old 04-28-2013, 12:34 AM Thread Starter
 
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Should also mention that I used brakecleaner to clean the pumpkin AND I scraped off the old rtv.

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post #3 of 19 (permalink) Old 04-28-2013, 07:38 PM
 
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So i am undestanding this correctly, you used a gasket, not a RTV sealer on the perimeter, only around the bolt wholes.
I myself have always only used rtv sealer around the whole perimeter, and never used an actual gasket, and have yet to expirience a leak.
But, if a gasket is being used, a "sealer" is still needed to help it "stick/bond" so it can seal properly.

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post #4 of 19 (permalink) Old 04-28-2013, 08:26 PM
 
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I've always put the gasket maker on the pumpkin then on the cover and then sandwhiched the paper gasket between the two layers. Be sure to go on inside of the bolt holes though so that it won't leak out the threads. Also I've never used lock tight on the bolts just a little bit of the gasket maker on the threads when I put them back in. Haven't had a leak yet. (Knock on wood)

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post #5 of 19 (permalink) Old 04-28-2013, 10:15 PM
 
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Quote:
Originally Posted by 1white08fx2 View Post
So i am undestanding this correctly, you used a gasket, not a RTV sealer on the perimeter, only around the bolt wholes.
I myself have always only used rtv sealer around the whole perimeter, and never used an actual gasket, and have yet to expirience a leak.
But, if a gasket is being used, a "sealer" is still needed to help it "stick/bond" so it can seal properly.
TRNRBILT I've always put the gasket maker on the pumpkin then on the cover and then sandwhiched the paper gasket between the two layers. Be sure to go on inside of the bolt holes though so that it won't leak out the threads. Also I've never used lock tight on the bolts just a little bit of the gasket maker on the threads when I put them back in. Haven't had a leak yet. (Knock on wood)

I was gonna say everything Jay and James said but thats to much typing

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post #6 of 19 (permalink) Old 04-28-2013, 10:29 PM Thread Starter
 
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I used the gasket that came with the cover AND put rtv on the pumpkin around the perimeter and the inside of the bolt holes. However I only put the rtv on the pumpkin. I did not use it on the cover as well. I think maybe that is my problem? I only want to do this once more. lol

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post #7 of 19 (permalink) Old 04-29-2013, 05:49 PM
 
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I'm with Jay on this one. Skip the gasket, just RTV. The aftermarket gaskets, somtimes will not compress and cause the bolts to loosen.

Gerry

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post #8 of 19 (permalink) Old 04-29-2013, 08:39 PM
 
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Quote:
Originally Posted by 07rangersport View Post
I used the gasket that came with the cover AND put rtv on the pumpkin around the perimeter and the inside of the bolt holes. However I only put the rtv on the pumpkin. I did not use it on the cover as well. I think maybe that is my problem? I only want to do this once more. lol
That's your issue!! Pull the cover off, and get rid of the gasket, and just rtv it.

2008 Oxford White F150 FX2 SPORT Super Crew,5.4L.
2003 Satin Silver Clearcoat Mustang GT,4.6L 2V,5 speed.
stripped,slammed,& cammed!

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post #9 of 19 (permalink) Old 04-29-2013, 09:16 PM Thread Starter
 
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Quote:
Originally Posted by Ol Skool View Post
I'm with Jay on this one. Skip the gasket, just RTV. The aftermarket gaskets, somtimes will not compress and cause the bolts to loosen.

Gerry
Quote:
Originally Posted by 1white08fx2 View Post
That's your issue!! Pull the cover off, and get rid of the gasket, and just rtv it.
Thanks guys! I bought 2 more quarts of fluid today and the weather is supposed to be stellar this week. Hopefully I can get it done in the next few days

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post #10 of 19 (permalink) Old 04-30-2013, 09:08 PM
 
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Well, i am praying it is nice for you.

2008 Oxford White F150 FX2 SPORT Super Crew,5.4L.
2003 Satin Silver Clearcoat Mustang GT,4.6L 2V,5 speed.
stripped,slammed,& cammed!

aka 1LOW03GT
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