Lotus Elan

coolant leak, what am I looking at

PostPost by: dgym » Fri Dec 16, 2016 10:31 pm

noticed the slightest of coolant drips under the car recently. 3 drips at most. I searched around and found this (pictured) seems to be coming from between the timing cover and block? Is this a thing?

photo8.jpg and
1967 S3 Coupe (left the factory in 66)
original rego PPC 8E
original owner B.M. Wetherill ..are you out there?
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PostPost by: carrierdave » Fri Dec 16, 2016 11:03 pm

If you zoom n on the photo, there appears to be coolant further up towards the exhaust manifold. I would look at the head gasket as a possible area for the leak.
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PostPost by: rgh0 » Fri Dec 16, 2016 11:22 pm

Most likely source is from the drain hole between the pump seal and bearing under the pump pulley. A small leak past the seal can drip out the drain and get blown back over the engine and may end up where you see it.

Also possible its a head gasket leak. Cracks in the front cover and leaks around the water pump assembly and past the front cover joins also possible.

I would run the car up to temperature while stationary and look carefully to trace back to see where the leak is coming from if possible.

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PostPost by: pharriso » Sat Dec 17, 2016 12:22 am

Do you have a uv light? Anti-freeze glows under uv light & will be much easier to see "in darkness "
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PostPost by: Bill » Sat Dec 17, 2016 7:09 pm

There is always "Barsleak" - the Gods foregive me!

A Happy Christmas from here in Lotus Land. (Vancouver Island)

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PostPost by: alan.barker » Sun Dec 18, 2016 10:00 am

check for play in waterpump pulley which could mean the waterpump is on the way out. When the bearing goes it can be very sudden. Had this happen twice in the past.
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