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oil leak 

 

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 Post subject: oil leak
Posted: Mon Jan 04, 2016 10:18 pm 
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Ride: el falcon

Location: geelong
VIC, Australia

hi i have an el falcon with an oil leak have changed rocker cover gasket redone front and rear oil seals replace the o ring on the timing chain adjuster but i was not aware that i could pull the adjuster apart and also there is a 10 mm bolt on the front of the motor which i sealed as well because it's leaking from the front somewhere so i am planning to get some flour and cover the front of the motor so i can see where it's coming from plus the oil is clean which makes it hard to see lol :?
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 Post subject: Re: oil leak
Posted: Wed Jan 06, 2016 6:14 pm 
Getting Side Ways
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Location: melbourne
VIC, Australia

P/Steering leak ???
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 Post subject: Re: oil leak
Posted: Wed Jan 06, 2016 8:56 pm 
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nothing to do with the p/steering coze replaced it all i think it has to do with the timing cover coze it's leaking at the top of the timing cover but it's not the head which is going to be a bugger to fix means have to move the head and sump as well just to do that if it only the gasket around the timing cover will be replacing all the timing chain and guides and anything else as well and coze i have to move the head am going to need to shave the head and get it cracked tested as well
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 Post subject: Re: oil leak
Posted: Thu Jan 07, 2016 11:27 am 
Getting Side Ways
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If someone has removed the head at any time, and not put sealant where the head and timing cover overlap, (at the end of the head gasket) it will leak from there. I have experienced this, and sealed the joint with silastic. It looked crap but did until I removed the head again.
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 Post subject: Re: oil leak
Posted: Fri Jan 08, 2016 6:38 am 
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creeture3 wrote:
If someone has removed the head at any time, and not put sealant where the head and timing cover overlap, (at the end of the head gasket) it will leak from there. I have experienced this, and sealed the joint with silastic. It looked crap but did until I removed the head again.


Agree with creeture3. I had an oil leak upfront somewhere and spent ages looking for it.

First thought it was the rocker cover, did that 3 times :cry: , then replaced the front main seal, no go.

Cleaned down everything (again) and after further close examination, found that it was leaking where the timing case sealed to the head (funny thing was that when we did the motor we did put sealant along the joint).

I pulled the power steering pump off and cleaned the full joint with carby cleaner. I then smeared Grey RTV into the joint using my finger and allowed this to cure before running the engine.

Joint sealed and no more oil leak.
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 Post subject: Re: oil leak
Posted: Fri Jan 08, 2016 11:22 am 
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Ride: EL Fairmont, VFR400 racer

Power: 144 rwkw

Location: Melbourne
VIC, Australia

wolfven wrote:
hi i have an el falcon with an oil leak have changed rocker cover gasket redone front and rear oil seals replace the o ring on the timing chain adjuster but i was not aware that i could pull the adjuster apart and also there is a 10 mm bolt on the front of the motor which i sealed as well because it's leaking from the front somewhere so i am planning to get some flour and cover the front of the motor so i can see where it's coming from plus the oil is clean which makes it hard to see lol :?


When you say you pulled the timing chain adjuster, do you mean the tensioner assembly as per pic?

Image

If so, did you put it in correctly and set the tensioner correctly? If you did not put the tensioner in and reset it, it could be putting too much tension on the chain causing other parts to get damaged. I did major damage to my first engine block like this by having too much tension which in turn caused the auxiliary shaft to get damage as well.

Regarding the oil leak at the timing cover. You can drop the sump, pull the cover off, replace the gasket on the timing cover and make sure you put sealant on the join area before putting the timing cover back on. All this without removing the head.

SWC wrote:
Cleaned down everything (again) and after further close examination, found that it was leaking where the timing case sealed to the head (funny thing was that when we did the motor we did put sealant along the joint).


I have a suspicion for this after head gasket replacements. I think, now don't quote, just something I noticed, is that the head was skimmed once too many times or too much the first time. This in turn causes the head to sit lower on the block, not by much, but lower nonetheless.

P/S bracket has set bolt spacing to fit block and head. Now with a lower sitting head, the bolt hole spacing has been reduced compared to the bracket, so when you tighten the bracket into the head/block, the bracket lifts the head ever so slightly, probably enough to cause seepage.

I noticed this when I put the bracket on rather forcefully and had a look at what I had done wrong. I decided to put extra sealant on the outside and then put the bracket back on. No leaks since I did the head back in 2008 (s**t time flies).

Just FYI

 

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