timing cover prob
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Lead Driver
Joined: Mar 2008
Posts: 7,172
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From: Near Los Angeles
timing cover prob
I've had my t. cover off several times trying to get the c. seal to seal, using two different v. dampeners. This is a '75, so I do not have the luxury of guide pins like the later models. However, I have used the v. damp. to align the seal/cover. I have also tried w/and/without the sleeve.
Could it be the t. cover is warped or bad in some way that is not visible, preventing a seal? Silicone was applied to keeper slot, and outside of seal in cover. Oill applied to lip of seal prior to installation.
Could it be the t. cover is warped or bad in some way that is not visible, preventing a seal? Silicone was applied to keeper slot, and outside of seal in cover. Oill applied to lip of seal prior to installation.
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Lead Driver
Joined: Mar 2008
Posts: 7,172
Likes: 376
From: Near Los Angeles
I guess anything is poss. But with it held in place by the v.damp., it seems unlikely. Also, each time I've replaced it, I've exerted far more care than the previous time.
There has to be something I'm not seeing...a crack or warpage. Could it be using a 78 cover on a 75 block?
There has to be something I'm not seeing...a crack or warpage. Could it be using a 78 cover on a 75 block?
Elder User
Joined: Aug 2007
Posts: 537
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From: LaGrande,Ore
Kevin, I'd vote for the small crack. Maybe only seeps when hot , with hot thin oil. I know how thorough and meticulis you are, especialy lining up things with the dampener. I have never done this, just slaped it on and tightened it down. No leaks, no seeps. Make the sign of the cross and splash the holy water. exorsize that demon, so you can drive and enjoy. OBCB
PS. no disrespect to any religion or diety
PS. no disrespect to any religion or diety
FTE Legend
Joined: May 2008
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From: In my own world
where exactly is it leaking? between the seal and crank,? between the seal and cover? between the cover and block? each has it's own set of cures. changing years should make no difference, if i bolts up, it fits.
Logistics Pro
Joined: Nov 2009
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From: Lawrence Swamp
PS. no disrespect to any religion or diety
I laughed seein that. I feel I'm pretty religious, was not offended. Imagined a bolt of lightin comin outta the sky of the pallious - "U better put that phrase in, Charlie!"
I laughed seein that. I feel I'm pretty religious, was not offended. Imagined a bolt of lightin comin outta the sky of the pallious - "U better put that phrase in, Charlie!"
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From: In my own world
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
With the v. dampener in the way it is difficult to see. But when I get under it, and look up between the cover and v.d., I can see a thin trickle of oil coming straight down from where center of crank is.
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From: Hendersonville, TN
Is it a significant leak? Not just seeping a little? Is the seal itself correct? I would vote on the crack theory as well, but if its leaking fast then a crack that large should be visible. It sounds like you are doing everything right. Very strange. Might be time to get another cover off Ebay and give that a shot.
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
It's just a little seepage that I would like to seal up. Not a big deal. It just bugs me because I don't seem to be able to stop it,
Maybe it is time to pull another cover from the bone yard, thoroughly examine it, and try it.
Is it even possible to purchase a new t. cover? for a '75?
Maybe it is time to pull another cover from the bone yard, thoroughly examine it, and try it.
Is it even possible to purchase a new t. cover? for a '75?
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From: In my own world
rock auto.com has one for 119.89 includes all gaskets and seals as required. this is for a new cover for a 75 f 250 300 I6. what glue did you use to install the seal? I use black weatherstrip cement, then install the seal by hitting a 3/4" drive socket that fits perfect.it is possable to bend the seal a little bit, if not seated flat, and they will weep from between the seal and the cover. another problem from the 70's is the poor quality of the sand cast, sometimes there is "air bubbles " in the casting, you just don't see. my money goes on the seal not sitting flat though. if you take it back off, clean it up real good, and put it in the oven and bake it for about a 1/2 hr at 350*. when you remove it, if there is a leak in the cover, it will show up as a stain
I forgot to put in the disclaimer