Dick Axtell
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| posted on 11/6/16 at 08:59 PM |
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Bike Carb Extension Tube - Sealant??
Hi to all the Experts on here; I'm intending to fit 40mm extension tubes to the manifold ports of my bike carbs (Keihin - ZZR600). This is a
means of avoiding a foul between carbs inlet gubbins and the nosecone.
Tubes will be a tight, push fit on to the carb port stubs, with approx. 7mm overlap - hopefully! What fuel-compatible sealant could I use, to prevent
air leakage between tube and carb port surface?
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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cliftyhanger
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| posted on 12/6/16 at 05:56 AM |
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Difficult, I never did find one 
You may be able to use a tank repair sealant? Or hematite red is fuel resistant
If the carb stubs are inside your extension, a PU adhesive "may" be OK if it is a very tight push fit and you are literally after a seal?
And no fuel will be washing against it. but take further advice.
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02GF74
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| posted on 12/6/16 at 07:33 AM |
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Is there room for a hose clamp?
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ReMan
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| posted on 12/6/16 at 08:19 AM |
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Hylomar blue
www.plusnine.co.uk
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Dick Axtell
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| posted on 12/6/16 at 05:21 PM |
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Thanks for your replies, and to ReMan in particular. I'll check out Hylomar, as I can recall using it to rebuild an Imp gearbox (which I shall
be very happy to never do again!!).
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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pewe
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| posted on 13/6/16 at 10:17 AM |
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My go-to adhesive for most jobs is Unibond Repair Extreme.
Will almost certainly do your job but as to whether it's fuel-proof I can't say...
Cheers, Pewe10  Unibond Repair Extreme Power Glue - 20g Tube Super Glue
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laurencedawson
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| posted on 23/6/16 at 12:39 PM |
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Hi,
I have a zetec with r1 carbs- had loads of trouble with
Air leaks and even the whole bank of carbs
Coming loose at the nurburgring!!!
I solved it by getting hold if an original set
Of the rubbers from the motorbike, and
Filing the inlet manifold tubes to roughly
Match- solved all the problems
Cheers
Les
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