Weber O-rings

[scorcher]

I'm wondering if and when hardened and thus leaking O-rings are renewed, whether the carbs. require a complete retune or would the status quo remain? Also does anyone have a notion as to the cost of a new set of coolant hoses for an X-flow ie Samco silicone or the standard rubber and which type is advised? Many thanks.

[Jonathan Kay]

Also does anyone have a notion as to the cost of a new set of coolant hoses for an X-flow ie Samco silicone or the standard rubber and which type is advised?

Silicone hoses last longer and come in pretty colours.

Classic Silicone Hoses £78.

Members seem happy with all three suppliers of silicone hoses. There's a Club discount from one of them.

Jonathan

[Molecular--Bob]

If you mean the MISAB plates then you will probably have to re-balance them on the centre linkage but nothing else should change.

With regard to hoses, the quality of the Caterham supplied rubber ones used to be poor with them cracking quite badly after 2-3 years. I got through 2 sets in 5 years before I swapped to zetec. Might be ok these days as I last bought a set 6 years ago?

[scorcher]

Interesting -thank you both.

[Molecular--Bob]

If you don't have MISAB plates ( http://www.demon-tweeks.co.uk/oncirrus/3/image/product/zoom/0123456789/0123456789/a-a99900-301.jpg ) but have the plastic spacer with an o-ring each side then I would change to the MISAB ones as they allow the carbs to move a little reducing vibration foaming of the fuel.

[ECR]

Misab plates are a must really, the plastic plates with replaceable o rings can see the o rings sucked from their grooves during backfires.

[SJD]

 

Another for MISAB plates.

[Richard K]

On the subject of hoses, I got my 'standard' set from Red Line.

They have been on the car for about 3 years. No sign of cracking.

Richard

[Red Line Components]

So these Weber Misab Plates replace the black plastic mounts between the carbs and the manifold?

[andy_h]

Re the o-rings between the carb and manifold (where fuel/air mix passes through) - get the proper ones with the metal surround. Don't get the plastic surround type.

when remounting the carbs back onto the manifold, don't do up the bolts on the rubber bobbins too tight, they should be looser than you think. If too tight you will get fuel coming out the carb and it will take weeks to find out why........ ask me how I know :)

cheers,

Andy

 

 

[OliverSedlacek]

The quality of the standard set supplied by Redline is noticeably better than it used to be (it's not often I can say that). I don't know when the spec/supplier changed, but the benefit of silicone hoses is marginal.