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 Weeping oil between oil pump and timing cover...
#703502
03/07/06 01:37 AM
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Joined: Oct 2003
Posts: 312
OP
Mudrunner
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No problem with speedy sleeve or front seal as it turns out. Slogging oil is coming from seam between oil pump and timing cover. I checked search function and didn't see post regarding simular problem. I just changed speedy sleeve and front seal only to find actual cause after buttoning back up.
Leak has occured 30k following rebuild, bolts are torqued OK, reused timing cover (no chain failure involved) and I doubt very seriously I forgot gasket although I can't see it in the seam. I also did not use any type of gasket sealer on this part.
Thoughts, please.
'87 22RE
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 Re: Weeping oil between oil pump and timing cover...
[Re: MrWiretender]
#703503
03/07/06 01:52 AM
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Joined: Dec 2005
Posts: 17
Need a Spot
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bad O-ring gasket? that seals the oil pump to the timing chain cover.
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Re: Weeping oil between oil pump and timing cover...
[Re: MrWiretender]
#703504
03/07/06 02:04 AM
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Joined: May 2001
Posts: 6,768
Trail Leader
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If you removed the timing cover without removing the head, the leak is VERY likely coming from the seal where the top of the timing cover meets the bottom of the front of your head. This is an EXTREMELY common leak point when the head is not removed, but the timing cover is. The headgasket is the seal at this point and when reinstalling the timing it's just not going seal properly unless replaced, or unless you're extremely lucky. You can try RTVing the crud out of it and it might slow the leak down.
I've lived with my leak for a number of years. Just too lazy to R&R the head at this point and other than making the front of the engine a little messy, it's not really hurting anything.
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Re: Weeping oil between oil pump and timing cover...
[Re: Brian894X4]
#703505
03/07/06 02:15 AM
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Joined: Dec 2005
Posts: 17
Need a Spot
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If you removed the timing cover without removing the head, the leak is VERY likely coming from the seal where the top of the timing cover meets the bottom of the front of your head. This is an EXTREMELY common leak point when the head is not removed, but the timing cover is. The headgasket is the seal at this point and when reinstalling the timing it's just not going seal properly unless replaced, or unless you're extremely lucky. You can try RTVing the crud out of it and it might slow the leak down.
I've lived with my leak for a number of years. Just too lazy to R&R the head at this point and other than making the front of the engine a little messy, it's not really hurting anything. Brian beat me to the punch on that one. <img src="/forums/images/graemlins/smile.gif" alt="" />
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Re: Weeping oil between oil pump and timing cover...
[Re: Brian894X4]
#703506
03/07/06 02:41 AM
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Joined: Oct 2003
Posts: 312
OP
Mudrunner
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Thanks for the thoughts, guys. It's coming from the seam at the timing cover as I can see it weep. Perhaps, the oil ring is the problem, but, I'm wondering if one of the two surfaces are warped??
'87 22RE
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Re: Weeping oil between oil pump and timing cover...
[Re: poncho]
#703507
03/07/06 02:42 AM
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Joined: Mar 2004
Posts: 514
Rock Warrior
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If you removed the timing cover without removing the head, the leak is VERY likely coming from the seal where the top of the timing cover meets the bottom of the front of your head. This is an EXTREMELY common leak point when the head is not removed, but the timing cover is. The headgasket is the seal at this point and when reinstalling the timing it's just not going seal properly unless replaced, or unless you're extremely lucky. You can try RTVing the crud out of it and it might slow the leak down.
I've lived with my leak for a number of years. Just too lazy to R&R the head at this point and other than making the front of the engine a little messy, it's not really hurting anything. Brian beat me to the punch on that one. <img src="/forums/images/graemlins/smile.gif" alt="" /> X 3 My biggest leak was the distributor. I didn't replace the O-ring there when I went through my chain. Something else to check if it's not your oil pump. Edit: 1 min late... <img src="/forums/images/graemlins/cyclops.gif" alt="" />
Last edited by grandeyota; 03/07/06 02:46 AM.
Fur clog in the sausage grinder
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Re: Weeping oil between oil pump and timing cover...
[Re: MrWiretender]
#703508
03/07/06 03:04 AM
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Joined: Jun 2003
Posts: 3,576
Roll Me Over
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>>>*Just two cases that I know of that are similar. One was the O-ring got slightly pinched at install and finally allowed a leak, the other turned out to be a tiny pin hole in the timing cover itself, a simple flaw in the casting when they poured the metal....*EB
*Beats the he** outa me!....*LOL**...
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Re: Weeping oil between oil pump and timing cover...
[Re: engnbldr]
#703509
03/07/06 03:26 AM
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Joined: Oct 2003
Posts: 312
OP
Mudrunner
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I may well have pinched that o-ring on install... I can't rule that out for sure. Of all the possibilities offered, EB, this one is most likely. I'll go back in again when the mood strikes me.
'87 22RE
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Re: Weeping oil between oil pump and timing cover...
[Re: MrWiretender]
#703510
03/07/06 09:08 AM
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Anonymous
Unregistered
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Did you use some of the Toyota high temp RTV silicone sealer along with the Oring. What I mean is fill the Oring groove in the pump with a small quantity of RTV and then inbed the Oring into the groove, then bolt the pump up to the timing cover. Make sure all the seal surfaces and Oring are oil free so the RTV will stick and don't over use the RTV so it doesn't ooze out to much. Oh, and let it setup real good before you run the engine! Chucky MoMo <img src="/forums/images/graemlins/wink.gif" alt="" />
Last edited by Chucky_MoMo; 03/07/06 09:12 AM.
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Re: Weeping oil between oil pump and timing cover...
#703511
03/07/06 11:28 AM
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Joined: Oct 2002
Posts: 15,887
Toyota & Classifieds Moderator
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You do NOT use RTV in that area.
Only the bolt just to the right of the relief valve gets RTV on the threads when it's installed. And I've had them leak from there when I've forgotten that. Check the FSM.
http://www.walkablecommunities.org/Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote. **ubi apis- ibi salus**
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