Small Coolent Build Up Between Engine And Gearbox?

[kls83]

It's a small coolent build up right at the back of the sump and gearbox area. Got underneath to have find the sorce ie dripped down from the head but couldn't find anything.

[Dose Pipe Sutututu]

coolant line behind the head? that's what I can think of

[kls83]

I thought that to but there's no trail of coolent that started from that area

[Dose Pipe Sutututu]

take the car for a spin, then park it on jack stands and/or a hoist.. once the motor is off and the cooling system is inactive you might be able to see a build up as the water heats up from lack of airflow.

[89CAL]

Is the join for your heater hoses leaking? I only say that cause mine has a very slight leak which I missed the first time I went looking for a leak. Assume R34's are the same

Otherwise (and hopefully not for you) it may be a leaking welch plug in the block inside the bellhousing. When I built my engine I was really lucky I pressure tested the cooling system before it was ready to go back in the car. The plug was leaking and I had to change it.

[GTRPSI]

Some RB heads also have a welsh plug also on the back of the head.

Known to pop on high powered builds, when they do most people put a new one in a go around the alloy on the edge with a center punch to stake them in, in our case we welded the bung shut with a billet plug.

Maybe get her up to cooling pressure and go around with a small mirror on a extension (you can buy them at supercheap) to have a look around.

[kls83]

I will get some pics up of it. I bought the engine with the ffp already on it and I know that some of the coolent lines running of the manifold where plugged up I found one at the back top of the engine was weeping

[boostn0199]

Its usually from the turbo coolant line at back of the head.

[jjman]

Its usually from the turbo coolant line at back of the head.

Is the join for your heater hoses leaking? I only say that cause mine has a very slight leak which I missed the first time I went looking for a leak. Assume R34's are the same

this or this is my call too.