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Old 20-07-2013   #1
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Fitting exhaust mk2 punto 8 valve

HI,i am getting a new exhaust including the flexipipe,just wondering about the bolts that connect the flexipipe,the existing ones seem to be welded on one side,so do i have to reuse these? just worried about getting the nuts off,they are so tight and if i damage the bolts do i have to get new ones rewelded,or is that necessary?
tks,tony
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Old 20-07-2013   #2
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Re: Fitting exhaust mk2 punto 8 valve

Plus Gas or GT 85 at least a day beforehand.

Never done one on a Mk2 Punto, but the MPI Sei system has a small tack weld on the pipe itself (buzz off with an angle grinder) and a small tack on one of the clamps. This can generally be buzzed off and re-used (it's the expensive looking clamp). If you wreck it, a conventional exhaust clamp will do the job.

My guess is that the two sections are aligned on a jig before they get to the assembly line with the tacks to hold in place. Afterwards, we tend to buy only the bits we need.
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Old 20-07-2013   #3
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Re: Fitting exhaust mk2 punto 8 valve

Literally just changed my centre pipe with flexi on my mk2 8v and they both nuts were that tight they snapped the bolts, so I took the manifold off as its the bit with the captive bolts and just drilled them out ( took about 5 mins ) then just put some new bolts through along with a new gasket to fix them both together, easy job
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Old 20-07-2013   #4
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Re: Fitting exhaust mk2 punto 8 valve

Oh and I only took the manifold off as it was just easier to drill them out
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Old 20-07-2013   #5
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Re: Fitting exhaust mk2 punto 8 valve

They are tack welded into place

I would advise ANYBODY removing the manfiold at some point to yes replace them studs

They've had a hard life, and it means in future snapping the bolts if they are buggers means you can just literally tap the other half out

When i replace mine - i will be using new bolts and nuts

Avoid Nylon lock nuts - the heat will melt the nylon

Ziggy
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Old 21-07-2013   #6
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Re: Fitting exhaust mk2 punto 8 valve

Try tightening them a tiny bit first, this can help break the seal and allow the penetrating fluid in. Or if you're impatient, heat them up.
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Old 21-07-2013   #7
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Re: Fitting exhaust mk2 punto 8 valve

Im a lover of the heat kind

Lube sometimes aint enough

I cheated and left seized bolts in oil overnight really really helps

Ziggy
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