8 replies to this topic

[KJM]

Hi all! I'm having problems with my maniflow lcb manifold to y piece that is brand new; it blows and I can't seem to sort it :-(

It didnt do it at first, but it undone the clamps to rotate them to a better position, which is when I noticed the leak.

Firstly I tried tightening up the clamps some more, no luck. Then I used a good amount of firegum exhaust joint paste, no luck. Then I bought some heavier duty clamps at bingley, no luck (but better) I then tightened up these clamps more and snapped the bolt.

I can't think of how to sort it other than an even bigger stronger clamp that won't snap the bolt!

Any advise on position of clamp and what else I can do?! I'm at my wits ends now and its so frustrating!

[redhot-mini]

are the cuts in the y piece fully closed on 2 the manifold have you tried cutting another 2 slits in it for it to clam tighter?

[bmcecosse]

Sure it's pushed on far enough - are the slots covered? Don't use ghastly 'exhaust paste' - it's for bodge repairs only........

[KJM]

I've definitely pushed it on enough as my first thought was this so I made sure it was fully home.

As for the slits, there are two per tube iirc, I could cut a couple more if there's nothing else to try!

That paste was a last resort type idea as I couldn't get any clamps at the time, it's horrible and dries very ugly but I thought it was worth a shot!

[bmcecosse]

I have cut extra slots in the past where the fit was slightly loose. Are the clamps flat bar 'wrap-around' style?

[KJM]

The originals were but I bought mikalor style clamps, but the bolt that clamps is only M6 and so snapped when I really tightened it!

[bmcecosse]

Mikalor are useless for this job - use the proper wrap round flat steel type.

[Gulfclubby]

My best guess would also be to make sure the y-piece is really pushed/hammered up snug. The clamps only hold the exhaust bits in place, they're not supposed to be sealing the bits by themselves.

[haggz]

my solution to the same problem was too smear some paste into the y piece (cold pipes) then position all the componets add a couple of well placed welds on the lcb to y. job sorted. never had a problem in the last year.