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M7 head welch plug - for using Sigma cam in Magna head

Posted: Mon Sep 05, 2016 9:43 am
by brichman
Hi all,

On the weekend my motor decided to develop a very large oil leak. It seems to be coming out of the welch plug that was used to plug the hole at the back of the head where the magna cam used to protrude out.. I've had a search and cant find anything about the size of said plug to fill that hole, and was wondering if anyone knows/would be able to help? Would it be easier for me to just source a magna cam and take the rear pulley off and use that?

(4g54 running 6psi)

Cheers for your assistance :)

Re: M7 head welch plug - for using Sigma cam in Magna head

Posted: Thu Oct 20, 2016 10:15 am
by brichman
Anyone? :P

Re: M7 head welch plug - for using Sigma cam in Magna head

Posted: Sat Oct 22, 2016 10:18 am
by astronturbo77
There's a rubberised plastic plug that pushes in there like the seal does, only seen it in vrs and full gasket sets that cover both models. Get the Id and od sizes and go to a bearing shop, repco and bursons and ask for a blanking plug, they are out there