Exhaust Manifold and down pipe connection

[garym100]

I want to replace the exhaust including down pipes (but not the manifolds). Looking at the current manifold fitting is this compatible with the exhaust system sold by SNG for a 1.5 DHC. it's not immediately obvious how these fit together and before buying and dismantling would like to check first.

[tim wood]

The system sold by SNG will fit I’m sure. I think your issues are more than fitting. It looks as though your manifold has a corner missing or damaged which is not uncommon. Also the nuts are rusty, the problem with this is that when trying to undo these a real possibility exists to further crack the manifolds.

Looks like you may also have a stud missing as well.
A good soak with a releasing fluid (maybe Plus Gas) will help.
Access to the nuts can be awkward as you can see, long extension from beneath may be needed.

[mgcjag]

Hi....As Tim says above....Also i recently fitted an SNG Bell exhaust to my S2 2+2......it connected straight to the existing manifolds......re your damaged manifolds...fairly easy to get second hand replacements....Steve

[garym100]

Thanks Steve and Tim

Appreciate the tips and will go ahead with ordering the exhaust. The missing corner to one of the manifolds doesn't appear to be causing a problem or leaking so may just stick with old manifolds but will keep an eye out for replacements.

G

[garym100]

Just fitted a Bell exhaust and used the steel clamps. Several of the joints are blowing exhaust fumes. Any advice on whether I should continue to tighten ; they are already fairly tight but with additional leverage I can probably tighten further. I haven’t used any joining sealant - should I ?
Any tips on where to place the clamp - nearest to the end of the pipe or close to the start of the split/cut in the pipe.

[mgcjag]

Hi....yes use exhaust sealant.....the Bell exhaust is quite thick steel so the clamps need quite a lot of force to clamp the pipe tight...im assuming your useing the Jubilee type clamp....also fitting the clamp nearer the end of the pipe makes it a bit easier to clamp fully...Steve

[Robbiee]

Anyone tried clear silicone sealant...it’s worked well on my MGA and Midget between manifold and exhaust, one application and no leaks??
Forgive me if not correct advice for a jag exhaust
Robbie

[mystery type]

re your damaged manifolds...fairly easy to get second hand replacements....Steve

steve, I'm looking for a pair to replace my damaged ones, but cant seem to find any except new, which appear to be silly money.

[mgcjag]

Hi Mystery...whats your name...far more friendly if you put it in the signature area with your car model...they are available quite often...ebay a good source.....Jag spares day Stonleigh next month....try Ken Jenkins or other used jag parts suppliers...SNG...call them they often have seconds (enamal chipped/cracked)....just shot blast it all off and paint.....CMC ara good source of used parts....also post in our wanted section....Steve

[mgcjag]

Hi Robbie...yes Silicone....personaly i wouldnt just use the bathroom type but you can get silicone exhaust sealer..Steve

[mystery type]

Hi Mystery...whats your name

Well if I tell you my name, I won’t be a mystery type!
Thanks Steve, I’ll try the contacts you suggest.