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Fluid Flywheel Leak

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BigJAK
Posts: 40
Joined: Mon Dec 18, 2017 10:00 pm
Location: North Wales

Fluid Flywheel Leak

Post by BigJAK »

Is there any chance that a fluid flywheel could leak after long term storage and come good again?
My car was in storage with the garage who restored it and after being finished for 4 years it has been delivered to me and there is a leak below the flywheel.
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bakergh
Posts: 109
Joined: Wed Feb 24, 2016 1:57 pm
Location: New Forest, Hampshire

Re: Fluid Flywheel Leak

Post by bakergh »

The first thing to do is to find out exactly where the oil is coming from.
Any leak at the rear of the engine will find its way to the bottom of the bell housing making it look like a leaking flywheel.
If it is the flywheel oil it should be clean oil. If it is an engine oil leak it will be a darker colour due to being contaminated.
The rocker box cover is one of the normal sources of engine oil leaks. As the car has stood a long time it could be just loose due to the gasket compressing.

Graham

BigJAK
Posts: 40
Joined: Mon Dec 18, 2017 10:00 pm
Location: North Wales

Re: Fluid Flywheel Leak

Post by BigJAK »

Clean oil!!
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bakergh
Posts: 109
Joined: Wed Feb 24, 2016 1:57 pm
Location: New Forest, Hampshire

Re: Fluid Flywheel Leak

Post by bakergh »

It would seem to be the flywheel oil seal leaking then.
Was the seal replaced before or during the restoration?
Original oil seals use a leather seal while modern replacements are rubber or neoprene.
Wynns make an additive that is supposed to stop oil leaks from modern seals.
https://www.wynns.uk.com/product/engine-stop-leak/
You could try adding this but I have never used it so cannot say if it would be effective.
Other than trying this you will have to have the oil seal replaced.
Please let us know the outcome.

Graham

Beat Weibel
Posts: 185
Joined: Sat Feb 27, 2016 4:13 pm
Location: Munich

Re: Fluid Flywheel Leak

Post by Beat Weibel »

I had the same problem with my E3.5 and successfully used https://lecwec.de/. Similar thing to the additive by wynns.
BR and good luck
Beat

Roark
Posts: 161
Joined: Sat Feb 13, 2016 10:52 am

Re: Fluid Flywheel Leak

Post by Roark »

Does anyone have any experience with leather seals?

BigJAK
Posts: 40
Joined: Mon Dec 18, 2017 10:00 pm
Location: North Wales

Re: Fluid Flywheel Leak

Post by BigJAK »

Can anyone confirm it is SAE30 oil?

bakergh
Posts: 109
Joined: Wed Feb 24, 2016 1:57 pm
Location: New Forest, Hampshire

Re: Fluid Flywheel Leak

Post by bakergh »

Flywheel oil is SAE30.

Petelang
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Location: Nottingham
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Re: Fluid Flywheel Leak

Post by Petelang »

Check that it's not just a sealing washer on one of the two bungs first.
Maybe the bung is not in tight?
The modern replacement is a double lip seal arrangement, does away with the internal spring but may necessitate a bit of light machining of the recess to fit the seals back-to-back back as they are standard size outer diameter and slightly larger than the imperial sized recess.
Peter
I just realised, you are talking about 2.5 V8. None of the above will probably apply, unless it's a bung leaking. I thought it was an older model like my fifteen. Sorry to mislead.
Peter Langridge
Cloud Nine Classic Weddings, Nottingham.

Phillmore
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Joined: Sat Feb 13, 2016 1:25 pm
Location: Worcestershire Herefordshire border

Re: Fluid Flywheel Leak

Post by Phillmore »

Gearbox oil would also be clean.
Andy

1954 Conquest Mk1, 1956 Conquest Mk2, 1957 Conquest Century Mk2, 1955 Austin A90 Westminster

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