GTV exhaust manifold gaskets

Started by poohbah, December 17, 2016, 07:06:56 PM

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poohbah

What a joy. Having replaced the bolts and nuts on joining the rear exhaust manifold to the flange a couple of months ago, the nuts on the front manifold undid themselves yesterday. And they are an even bigger faff to get to.

Two hours, a layer of skin and the use of every four letter word in The Swearing Bastard's Dictionary later, I got the new nuts on and tightened up from the topside.

Question - does anyone else have heat shielding fitted to cover the left hand side engine mount (the one closest to the exhaust manifolds)?

Mine does, and it really gets in the way and tends to rattle as its only attached in two places. If its not really needed, I'm tempted to rip it out.

Now:    2002 156 GTA
            1981 GTV
Before: 1999 156 V6 Q-auto
            2001 156 V6 (sadly cremated)

Neil Choi

Yep, check exhaust nuts regularly.  Heat and vibration will loosen them, access is difficult, better with extractors.

Yep, remove and discard that heat shield if originality is not important, wrap mount with exhaust heat cloth tape and wire on to secure.  Standard race car mod.

poohbah

Now:    2002 156 GTA
            1981 GTV
Before: 1999 156 V6 Q-auto
            2001 156 V6 (sadly cremated)

carlo rossi

I noticed the other day that the nut on the end on one that hadnt fallen off was Copper
maybe this is the secret you can tighten the copper without fear of cracking the exhaust
dont know but it was interesting
current cars
red 83 gtv 2.0


previous cars
Red 76 1.2/1.5 alfasud ti
white 79 alfetta 2000
alfetta 74 1.8
escort Lotus twin cam
bikes
ducati 900 ss 1979
moto morini 3 1/2 sport 1975/6
Moto morini 3 1/2 valentini speciale 77 oh and a deltek rockhopper

poohbah

Good tip Carlo. Next time they fall off I will try copper - I can't face the prospect of removing the nuts I've just fitted right now!
Now:    2002 156 GTA
            1981 GTV
Before: 1999 156 V6 Q-auto
            2001 156 V6 (sadly cremated)

poohbah

Cheers Glen, that is a handy reference, especially seeing the original had a squared end to lock it in place while you tighten the nut.
Now:    2002 156 GTA
            1981 GTV
Before: 1999 156 V6 Q-auto
            2001 156 V6 (sadly cremated)