Head off TD5

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Originally Posted by PhilipA

I still wonder what comes first the loose head or deformed dowel.

I posted a picture from somewhere a while ago of a steel dowel bent the same way as plastic dowels do so my conclusion is that the dowels only bend after the head has become loose. Dowels are usually only there to locate the head as you torque it up.

There must be some significant forces at work there.
Regards Philip A

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You say the steel dowel was bent. Id like to see the head and gasket it could easily of been the dowel was not seated correctly under the head during fitting.

No it had a step in it half way along just like the plastic dowels do.

I must have inserted a link in the thread as I cannot find it in my gallery, and google now doesn't find the picture.

Regards Philip A

Hi DaveJ,
Take the head to M & D Auto Engineering in Carlisle, they do a lot of TD5 heads and they are good at it. I get my gasket kit and bolting from TRS in Adelaide. They include the steel pins in the kit.

Good idea to replace the exhaust manifold studs as well. M & D also re seal the plug on the exhaust side of the head and do a pressure test afterwards.

Cheers Marty.

Eventually put the head back on my TD5. It's only done 100k since but it's running better than ever. Just like to say thank you to everyone who sent advise. Reading past posts was also very helpful.