Weber Problem

[Guest danny_samb]

Purchssed a pair of twin webers, cant get them to fit onto my pinto chasis rails are in the way, is there a manifold with a bend in to point up instead of horizontal.

Please help guys

Thanks

[richardm6994]

Hi,

 

I had the same problem.....ended up using one of these;

 

http://www.burtonpower.com/parts-by-category/fuel-system/inlet-manifolds/im4272.html

 

 

except mine is for 48's instead of 40's....they come up quite often on ebay for around £50.

 

If thats not of any interest......if you're around the derby area...and also there is enough material on your inlet manifold....I can machine the manifold flange at an angle so that when it bolts to the engine, it's pointing upwards. I've done this before on a couple of Robin hoods pretty sucessfully! (it all depends what angle you need and what material you've got to play with on the manifold for machining)

[Guest danny_samb]

Is there not an angled 1 can buy, have you got pics of yours, mine are 45s

[Guest danny_samb]

How many degrees do you machine off? And off the block side or weber side? Top or bottom?

Thanks

[richardm6994]

I can machine both the block and weber side to give a compound angle, but the angles all depends on how thick the flanges are, thus how much material I can machine off to produce the angle.

[Guest arf!!]

as above i have this (http://www.burtonpow...lds/im4272.html) and there is loads of room

 

or http://www.motoscope.co.uk/induction.htm#Inlet_Manifolds

Edited February 20, 2012 by arf!!

[steve in stockport]

what is touching the chassis and by how much? If part of the carb/trumpet is only just touching you could try loosening the engine mounts and resiting the engine or packing under the mounts to give some clearance

[Guest danny_samb]

Also I'm using the mechanical fuel pump there is a small black pipe coming off it that went to the old carb where does this go on the webers, I'm guessing the vacuum from the brake servo goes to the manifold

Thanks

[Longboarder]

I used the short manifold richardm links to in a mono car and there was room for short trumpets under a pipercross filter under the bonnet. Narrower than a 2B. I did search at the time for swan necked manifolds as I remembered them from mini days but couldn't find a pinto one.

If you machine the manifold try to take equal angles off each face so the carbs stay horizontal.

Servo vacuum can go to a single runner on the manifold. More thought needed for vacuum advance on dizzy and pressure relief on the crankcase.

Mechanical pump has inlet from tank and outlet to carbs which should have two banjo connectors and pipes for fuel.

 

Nigel

[Guest danny_samb]

Ye I got the fuel lines sorted, but on the fuel pump there is also a smaller pipe, I'm putting a pipe off the crankcase to a catch tank

[Longboarder]

I haven't seen a sierra mechanical pump with three pipes, sorry. There was an ally regulator/vapour separator fitted to carb sierras which had three pipes. They are normally binned and they're not bolted to the block like the pump is.

 

Nigel

[Guest danny_samb]

There is fuel pipe in and out then a pipe half the size

[Longboarder]

The pump Is bolted to the block just behind the base of the distributor.

The vapour separator is bolted to the inner wing and not the block in sierras and looks like the pic below.

Picture copied from Haynes manual.

 

Nigel

[Guest danny_samb]

Yes, there is a fuel pipe going into the bottom, 1 coming out the top then on the side there is a little pipe about 6mm diameter

[Guest danny_samb]

It is definately bolted to the block, just been reading that it's a pressure regulator to push fuel back to the tank, as I'm using twin 45's there won't be a return will they, I have a pipe for a return do can I connect that pipe to my return pipe, or buy a pinto fuel pump