New Exhaust Insta Question

Ok, so I got my new exhaust for my '75 MKIII. I'm going with the unbalanced pipes with out the crossover pipe and I'm not sure I have the right exhaust nuts. I have the metal gasket for them and when I tighten the exhaust all the way down there is still a slight bit of movement in the pipes and the nut is all the way against the head. Here are a couple of pictures:





Am I missing something or are these the wrong nuts for this switch in exhaust?

You need crush washers and the conical washers that normally come with the Mk III. If you use both, place the crush washers in first followed by the conicals then nut the pipes down snug. After starting and warming up, tighten the nuts a final time and you should be good to go.

Personally, I would not use the conical seats and tighten the flat flanged pipe against it. If there is enough space between the nut and the pipe to install the collet from the '74 850 style pipes (P/N 063990) I would use them to space the nut out. If not, then I would use the longer 750 nuts. I have found that some non-balanced pipes allow enough space to fit the collets between the pipe and the nut, but others are too large at the flange and 750 nuts must be used.

I would be concerned that tightening the flat flange on the conical seat might cause the flange to crack. Just my $0.02.

You may be correct. I had completely forgotten about the collets. Maybe they would add enough space to let the nuts seat the pipe against the crush washers. Didn't someone mention using double crush washers also?

Hi,
I had to do the double crush washer trick on my bike, its quick and easy. Install one tighten to crush, then install the second and finish tightening, your pipe should be firmly mounted afterward.

GB

geo46er said:

Hi,
I had to do the double crush washer trick on my bike, its quick and easy. Install one tighten to crush, then install the second and finish tightening, your pipe should be firmly mounted afterward.

GB

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I was wondering if this would be an option. This would be an easy fix if this would work.