4 replies to this topic

[grahama]

Hi all,

 

I have stripped down the water side of the engine due to an oil leak around the timing cover.  I have been reading that this is a common leak point and I am trying to see exactly where the leak is coming from.

 

In first pic looking inside the pulley oil seal there is oil visible,  is this normal??  There is no oil on the outside of the seal area.

 

 

Is the oil flinger/lock tab ok and on correctly??

 

 

The oil pools where the screwdriver points, lowest point but on the outside lip which points to maybe a nut leaking?? 

 

 

The inside face of the timing area, (the flat plate that the cover sits on), and the block are oil free so I am discounting the half moon seal to be honest,  as this would leak down the block I would have thought.  You can't see oil as it's a rebuilt engine and brand new first fill oil.  It stops after engine has drained down after a run too.

 

Is there a product I can put onto the cover gasket to take up any small gaps so it doesn't leak??

 

Your help is appreciated as always,

 

Graham

Edited by grahama, 30 June 2015 - 05:32 PM.

[nicklouse]

Well where shall we start.

The oil flinger should be inside the timing cover.

The crank damper lock tab should be between the crank damper and the bolt. That looks like a mashed cam nut lock tab.

The cover does need to be aligned carefully so you don't get leaks around the damper.

As yo your first question not sure what you are asking as there is no depth to the pic but yes there is a good chance of seeing oil on the wet side of an engine.

Edited by nicklouse, 30 June 2015 - 06:11 PM.

[Stevie W]

Hi Graham,

 

The oil flinger or slinger usually has an "F" stamped on one face which denotes "front" and I believe this faces outwards away from the engine block. 

The crankshaft pulley lock washer looks like a large thick dished washer with a raised edge. This allows the edge to be easily "pulled up" onto one of the crankshaft pulley bolt flats after it has been tightened. Part No's are TAM2020 for the A+ engines and 12A398 for the earlier A series engines. 

 

With regard to your leak, you may well have oil leaking from the timing chain cover through the bolt hole, or the oil seal was leaking and allowing oil to run down to the bottom of the timing chain cover, then on to the lowest point of the cover, which as you say is where you can see the oil leaking out.

 

As mentioned above, it's important to centralise the timing chain cover over the crank pulley oil seal face to prevent leaks. It's best to fit the timing chain cover loosely, fit and tighten the crank pulley then nip up the timing chain cover bolts. 

 

Cheers, Steve.

[Spider]

By all means follow up what the other guys have said, however be mindful too that the oil will run to the lowest point, just because you noticed oil on the flange of the pressed cover, doesn't always mean that's where it originated from! Oil Leaks can sometimes be hard to track down!

[grahama]

The rest of the cover was dry even when running so I think the leak is indeed near the bottom.

Looks like ri am taking the cover off to check slinger placement firstly. Then I think I will get a new gasket and blue hallmark the cover in place, can't be any worse than it is now!!

I will check trueness of mating surfaces too just in case I have a dip or chunk out.

Many thanks so far lol