Anyone any good with Dellortos????

[doyle]

Hi-have had dellorto 40s on my 2.1 pinto for a while now but recently decided to fit a facet pump and whilst I was there I gave the carbs a service (gaskets etc).

 

So I put them back on today, fitted correctly when to run them up so I can set them up/balance them and as its running its pissing fuel out of the rear carb , Ive dropped the fuel pressure right down as i thought this may be the cause but didnt make any difference.

Anyone have any ideas what it could be?

I'm running out of ideas to be honest so any help would be great!

[doyle]

oh, by the way i have a sytec regulator fitted

[Tom]

the float needle isn't shutting mate, did you refit it? fit a new one? set up your open and shut heights?

[doyle]

i put in new ones, better check it tho, can it be anything else??

[Tom]

check that first it's the most likely thing

[doyle]

thanks mate

[doyle]

ok so checked it-adjusted it again and its ok now

Only thing is its still running like a bag of shit-getting pissed off wiv it now.

just wanna drive it

[Tom]

was it ok before you started?

 

you need to retune the carbs; balance, mixtures etc. what pressure is the regulator set at?

[doyle]

ok so is up and running now but it has a problem. When i drive its fine up to about 3rd gear at 2500rpm then it just bogs down and eventually comes to a gradual halt and cuts out, if i leave it for a minute or so i can start it fine and it does it again!

I know the engine temp is ok cos its got leccy fans fitted and temp on guage is fine.

I cleaned the points up but as far as i know they are gapped ok, it has new leads fitted.

All gaskets and seals replaced on carbs and new inlet manifold gasket fitted too.

The pump is fitted below the batt tray and is at 45 degree angle-pressure is set at 3.5psi-could the fuel pressure be knocking out timing???

It all ran before, not great but it ran. Cant think what the problem is (and before someone asks-it has fuel in! )

 

Any ideas????????

[Wessie]

get it to a set of rollers and get them set up properly

[doyle]

nice thought-if only i had the money, besides the car only goes for about 1/4 of a mile at a time!lol take me about a week to get to one!lol

[Wessie]

its cheaper to get them set up/balanced/choked properly then causing damage to ur engine by it not running right

[doyle]

trust me if i had the cash i wouldnt be doin it myself!

[mk2dk]

Are you sure you hav'nt bent something on the flowting mechanism, causing the float needle the shut before the carburettors are filled. Or perhaps to little pressure, 3.5 psi dos'nt sound much to me

[Tom]

3.5psi is fine

[doyle]

ok-one of the problems was a nos coil i fitted-put the old one back on and seems happier but still not 100%.

 

I'm gonna try and have another look today-have checked the floats/needles but all looks fine-could it be ignition?

sayin that once its cut out if i leave it a minute or so it'll start again and do it all over again-flooding no?

 

I'm gonna take it somewhere local for them to look at the carbs but need to get it running well enough to get there!

 

Thanks for the help so far but any more ideas???