Removing Plenum Chamber

[rcb610]

I want to replace the plenum chamber. Is it easy to remove and re-install? Any advise would be welcomed

[griffter]

The whole thing inc. trumpets, or just the cover?

The cover's easy enough to remove/replace. When refitting use a bead of 'instant gasket' or silicon sealant on the mating edges. On my Griff I had to be very careful not to allow the edge of the plenum chamber to scrape the trumpets when refitting, otherwise I'd have got gasket goo in the intake ports. You might have more room and less of a problem on the Chimaera.

[M@H]

I'm intrigued.. what are you replacing it for..?


Matt

[rcb610]

I want to get it polished. Do I need to take the throttle assembley apart and is it an easy job?

[M@H]

AAh.. "re-fit" the plenum chamber... I was wondering what you were replacing it with/for as you'd have a job to break it..

>> Edited by M@H on Thursday 8th January 13:51

[rat]

griffter said:

I had to be very careful not to allow the edge of the plenum chamber to scrape the trumpets when refitting, otherwise I'd have got gasket goo in the intake ports.

Put the sealant on the bottom half. Tricky around the back, but so's the problem you've mentioned.

Easy to disassemble the plenum, the throttle mechanism just unbolts from it intact and pulls out. You'll need a good voltmeter when refitting throttle potentiometer to get the idle signal right.