Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[JamesV6CDX]

I'm looking into possibilities for where the oil is coming from. The oil is collecting on the top of the sump, and there is a fair amount on the ground behind the engine!!

To be methodical:

I have checked:

Cam Cover gaskets. Doesn't seem to be any external leaks in that area, plug wells are bone dry. Genuine GM gaskets recently fitted and breather squeaky clean.

Crankshaft oil seal. I had a good look in this area when I pulled the cambelt off...  and it didn't seem at all oily around this pulley, certainly not to the degree it's leaking.

Camshaft oil seals. Bone Dry.

Oil cooler to engine block unions. Bone Dry.

There is oil EVERYWHERE.. a large amount burning off the drivers site CAT. Bellhousing is caked in it. As is the crossmember. Sump gasket on a visual inspection doesn't appear to be leaking anywhere.

Oil filter - tight

Pressure switch at front of engine - changed it and it's washer.

All I can now think of, is - possibly one of the oil cooler unions in the V of the engine - plenum off tomorrow to check.

The only other thing I've noticed, is that the sump washer doesn't look correct, and oil is leaking from the sump plug at about 2 drips every 5 seconds. Collects quite a puddle after a while!! Obviously this needs fixing, but I wonder if it's the cause of the evils?? Only thing with that, is.. surely it wouldn't get onto the top of the sump that way...

Comments welcome

[TheBoy]

may blow back and up with the wind?

[Dazzler]

Couldn't be that simple...........could it??? that is a fare old leak rate you have there, total loss oil system, never need to actually change it

[wakeyomega]

Hi James
Now I know this is not an omega, but I have currently have a 1960 hillman minx that had a faulty sump plug washer - the oil blew 'everywhere' on a run, I assume when it gets hotter, it gets thinner, probably leaks more and the draught just takes it everywhere in fine droplets. If I was you, before doing anything drastic, I'd fix the washer, wash down and then check again.

Good Luck

Pat

[JamesV6CDX]

Car has been parked for 5 mins after a run... and there is a humongous puddle, all from the sump plug....

 

[Dazzler]

After reading the original ad, i would say it should have said 1 litre of oil used per night with 0 miles.....
Fingers crossed for you matey..

[x25xe]

I have currently have a 1960 hillman minx

Slightly off topic - sorry - but do you have any pics of the Minx?  I would be most interested in seeing them if you do.  Could you post them up perhaps?

[Nickbat]

may blow back and up with the wind?

That's a good point, TB.

This thread is getting a bit too interesting, so let's change all that:

Presumably, at speed, the air under the engine increases in pressure (hence the steering becomes lighter and the front of the car's natural tendency is to lift). This would then cause a minor venturi effect by sucking out air from the engine bay. Now, would that air be sucked out evenly from both the front and the back? I would guess that the fan's interraction would cause a circulation of up the back past the bellhousing and down the front by the rad - even though the rad creates hot air, the speed would negate its effect. This overall pattern could therefore cause any oil leak from the sump to be sucked up the back on to the bell housing.

Comments please from anyone that knows about physics.    

[Taxi_Driver]

may blow back and up with the wind?

That's a good point, TB.

This thread is getting a bit too interesting, so let's change all that:

Presumably, at speed, the air under the engine increases in pressure (hence the steering becomes lighter and the front of the car's natural tendency is to lift). This would then cause a minor venturi effect by sucking out air from the engine bay. Now, would that air be sucked out evenly from both the front and the back? I would guess that the fan's interraction would cause a circulation of up the back past the bellhousing and down the front by the rad - even though the rad creates hot air, the speed would negate its effect. This overall pattern could therefore cause any oil leak from the sump to be sucked up the back on to the bell housing.

Comments please from anyone that knows about physics.    

Yes i know all about it   If its leaking from the sump washer James....Bl**dy change it.....and see if that fixes it  

[CaptainZok]

may blow back and up with the wind?

That's a good point, TB.

This thread is getting a bit too interesting, so let's change all that:

Presumably, at speed, the air under the engine increases in pressure (hence the steering becomes lighter and the front of the car's natural tendency is to lift). This would then cause a minor venturi effect by sucking out air from the engine bay. Now, would that air be sucked out evenly from both the front and the back? I would guess that the fan's interraction would cause a circulation of up the back past the bellhousing and down the front by the rad - even though the rad creates hot air, the speed would negate its effect. This overall pattern could therefore cause any oil leak from the sump to be sucked up the back on to the bell housing.

Comments please from anyone that knows about physics.    

Yes i know all about it   If its leaking from the sump washer James....Bl**dy change it.....and see if that fixes it  

But that's just fault finding by substitution and Mark always bol**cks us for doing that.

[Dave-C]

may blow back and up with the wind?

That's a good point, TB.

This thread is getting a bit too interesting, so let's change all that:

Presumably, at speed, the air under the engine increases in pressure (hence the steering becomes lighter and the front of the car's natural tendency is to lift). This would then cause a minor venturi effect by sucking out air from the engine bay. Now, would that air be sucked out evenly from both the front and the back? I would guess that the fan's interraction would cause a circulation of up the back past the bellhousing and down the front by the rad - even though the rad creates hot air, the speed would negate its effect. This overall pattern could therefore cause any oil leak from the sump to be sucked up the back on to the bell housing.

Comments please from anyone that knows about physics.    

Most interesting!  Is this why Sir Issac Newton got bonked on the noggin by a falling apple then!!!  Ahhhh!  Sir Frank Whittle, the fundaments of the Jet Engine... Bloody informative site this...  

[Admin]

To quote Mark....

You fix the bl**dy obvious  first!  

James. Change the oil (and the sump plug washer!).
Clean everything around there (again traffic film remover is good)

Run car and see what happens!

[The Barge Captain]

may blow back and up with the wind?

Sounds embarasing  

[wakeyomega]

Posted by: x25xe Posted on: Yesterday at 23:19
Quote from wakeyomega on Yesterday at 22:41:
I have currently have a 1960 hillman minx
 
Slightly off topic - sorry - but do you have any pics of the Minx? I would be most interested in seeing them if you do.  Could you post them up perhaps?
 

I've popped one in the General Chat area (to save Admin moving it there!   )

Pat

[r.welfare]

Interesting.  I was told the sump plug washer was the right one, although it came from a factor rather than Vx.  When I last cleaned everything off and took the bagpipes/aux belt etc out (as we discussed), oil definitely appeared to be coming out from somewhere above and behind the alternator...