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I have noticed a difference which makes me suspect that the exhaust manifold is holding tight..... Hope so cos do not want to have to drill out the lost bolt!! ��

Cheers DastardlyDan, Its only the head of the bolt that has gone, the manifold/EGR is securely fastened together, I will test the joint with a CO analyser tomorrow to see if exhaust gases are escaping. Performance wise she flies for an L. The intake manifold is blocked, vacuum pipe and solenoid...

Thanks for the reply btw

Is that definitely the case as there is nowhere for the valve to open to?? I heard just putting a ballbearing in the vacuum pipe on the l series is the same as bypassing it. Just dont fancy drilling a bolt out of the exhaust manifold....:(

Hello all, after having my Hippo for a few weeks i decided to blank off/bypass the EGR. I put a blanking plate on the manifold, joined the coolant pipes and removed the EGR cooler. I then bunged the Vacuum pipe, removed the two pipes to the solenoid and bunged them with golf tees. My question...

Hi guys, recently bought an L Series Hippo, been wanting one for a long while! Thought it about time i introduced myself after trawling through a lot of the useful info i have found on here!!