17 replies to this topic

[Msmith3327]

2 questions on the float bowl,

1, The nut securing it to the carb, will it make any difference if this isn't tight. in such as bad running.

2, Is there a way of checking that the float isnt getting stuck.

The reason i ask is i have an ongoing problem with starting and idleing, I have refurbed the carb and the car ran lovely for about a month and now has the annoying tendancy to die at lights it is also being a complete pig to start, again intermitantly but if i take the petrol hose off the bowl ( loosing petrol at the time0 then reconnect it the car will start.

I have elctronic landrover parts in the dizzy, its had new plugs new leads and a new dizzy cap, all the wireing is in good nick.

I am now lost, any suggestions

[Dan]

The bowl is normally mounted on an isolating rubber, it often appears the bolt is loose but in reality it's the rubber that's moving.

[Msmith3327]

Cheers Dan but mine is defo loose i cn turn the nut by hand, will it cause running problems though?

[Dan]

If the bowl is rattling around it will cause problems yes. The needle valve will rattle and jar and the level of fuel in the jet will too.

[Msmith3327]

Cheers Dan will go and tighten it up tomorrow, mine doesn't have an isolating rubber though so when i tighten it up the bowl will be locked solid, will this matter?

[Dan]

Is the carb spacer solid metal or felt/paper/plastic? The idea of the isolation is to keep the float bowl from vibrating and keep the fuel level constant. If everything is rigid it will vibrate with the engine.

[Msmith3327]

off the top of my head Dan i think the carb spacer is metel, guess i need to find a different one then.

Yeh its an Alloy spacer

Edited by Msmith3327, 16 November 2010 - 09:31 PM.

[Dan]

I would, the carb really needs to be isolated from the engine and manifold both thermally and in terms of vibration. I dislike the ally spacers, the card/paper one is best I think.

[Msmith3327]

Ok so i tightened up the bowl this morning and it started on the button, yippeeee i thought problem solved with no money spent.

But alas no, the bowl is still tight but it still isnt idleing and is being a pig to start.

Any more ideas (Dan as you were helpfull last night)

I have noticed that when its playing up and i am in gear, not using the accelerator going downhill i get lots of popping from the exhust.


UPDATE,

I have checked the float and it seams OK, the Jet isn't blocked as i can blow air through it.

I did spray carb cleaner down the air intake and it started and ran, which would indicate a fueling problem but where is the problem if the fuel is ok!!!!!

GGGGGGGGGGGGGGrrrrrrrrrrrrrrrrrrrrrr

Edited by Msmith3327, 18 November 2010 - 01:54 PM.

[Msmith3327]

Bump as i really need to sort this sorted as its a daily driver.

[Big_Adam]

Wait, is this a stock of stage 1 car?

As its sounding like the fueling is right out.

[Msmith3327]

Yep Big Adam its a stock 998 with stage 1 fitted, got it fully tuned before L2B where it worked wonderfully for about 3 months and has just been a complete pain since.

If the Fueling is way out, what area should i be looking at to resolve it.

[Big_Adam]

If it went quickly, then I'd think something broke more than the mix went out. Is the rubber pipe from carb to back of the engine block aka the breather pipe clear/unbroken?

[Msmith3327]

see below!!!!

Edited by Msmith3327, 18 November 2010 - 06:02 PM.

[Msmith3327]

I did tighten the pipe thingy that holds the breather onto the carb as it was very loose, this just made the engine really lumpy while cranking but was fine once i got it going!!!