4 replies to this topic

[hatchet]

Hi everyone.

Whilst under the bonnet to check out why the Mini was running a bit rough (turned out to be loose connection to coil) I noticed there was a nice sized hole in my manifold gasket around the middle exhaust port through which I could see the gasses igniting! I have therefore recently replaced the gasket.

I was wondering if anyone might know why this is happening and if I am able to cure it, as no doubt I will have to replace the gasket again sometime in the future.

Cheers

[siggy]

Could be a faulty gasket, poor fitting or distorted manifold.

Siggy

[mighty_mini]

i had the same problem, was it a cooper freeflow from maniflow?

well i went thru endless amounts of gaskets and i came up with a solution...

buy 2 gaskets, and cut the middle section out of one, and gasket join it to the other.. fixed... no holes.. its where the centre branch dont clamp down right...

[siggy]

MM that sounds like you did not have the correct stepped washers between the inlet and exhaust manifolds, as the flanges are not the same thickness.

Siggy

[hatchet]

Thanks guys!

You may have read my other posts about changing my carbs, so I'll check the flange thicknesses and remedy if necessary.