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1G Can't get broken bolt out of rear main seal.

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jared_gibbs

10+ Year Contributor
113
2
Jun 16, 2010
Idaho Falls, Idaho
I broke that top bolt and have been trying to easy out it for about an hour with no luck. I think the sealant I used for the gasket has locked the threads in pretty tight. Do I dare proceed without this bolt?

I did replace the gasket.

Thanks for any replies!
 

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Use a bigger drill bit, try and get the bolt as thin as possible. Then try a bigger easy out. You can also drill the bolt as thin as possible and retap the threads. If that doesn't work, drill and install a helicoil. Lost of pressure there on the rear seal, would probably leak without that bolt.
 
Thanks for the link to that write up iugrad! Finally got it out. Man that was stubborn!

Torque spec is 84-144 in lbs. I snapped it at 120ish. Hth somebody in the future. I'm going with 100.
 
First of all, those bolts need to be torqued no more than 96 inch lbs, which is 8 ft/lbs. Second, you have rtv all over the seal and seal surface. That isn't going to seal too good like that. Looks like you just globbed a bunch of rtv on there and threw it together and didn't take your time.
 
I didn't rtv the seal, just the gasket for the retainer. I used a gasket and rtv to make sure it sealed well as I don't want to do this again! That wouldn't mess anything up would it?

It's a little messy due to being bolted to an engine stand not allowing much room to get in there.

Bryanwheat, what resource dictates that spec? The Haynes manual is clearly off (see attached pic)
 

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The torque spec is decided by the size and grade of the bolt. Most every 6mm bolt in the engine bay will be right around 8 ft/lbs or 96 inch lbs. I also have the specs for that burned in my brain after torquing so many over the years.
 
Throw the Haynes manual away. Yes rtv can make some situations worse. Your results will vary. If the manual doesnt call for it I generally dont use it.
 
I never used rtv just the gasket never had one leak because of that just the actual seal going bad, over time, using rtv can be a issue especially if used when not needed or, use of too much, ive seem some people who use way too much and wonder why the have a leaky mess.
 
I've never had a rear main leak with just a gasket. Where did the bolt break? Why not just take the seal housing off and grab it with some vice grips? Seems to me like you're making this job much harder by trying to do that with everything still assembled.

That's a good point. There aren't any threads on the seal housing so it could have just been pulled off. Probably didn't want to ruin the RTV job though.
 
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