engine starts, then stops ??
Turbo Mini Forums

finally sorted out the firing issue on the sprite. now, when it fires up, it runs for about 3 seconds, then dies. plugs are wet and got a good spark. anyone any ideas to check?

stu

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

Air leak?

Mixture issue?

In the 13's at last!.. Just

carb has been rebuilt from a hif44 using a turbo rebuild kit. what way would you recommend for setting up the mixture? not sure if it would be different being a turbo set up. couldnt see any obvious air leaks tbh.

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

Are you still on a dizzy? Could be condenser or ignition module. Does it restart again straight away? And is it always the same amount of time before it cuts out or does it vary

nope canems ecu. loaded a map from on here as a starter to get it to run. doesnt always start straight back up. if i leave it 5 mins then it will fire up, then die again. its about the same time before cut out. start it up, revs up to idle then dies.

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

do you have a AFR gauge

Done now needs redoing lol

Sounds like too much fuel, the give away is that after you have left it a short while, it will start again.

Did you set the initial jet hight as described in the rebuild instructions? Also check the choke mechanism is correctly set, again, this is described in the manual.

I remember a couple of years back at MITP, Ben H having a problem getting the TT2 fired up in the startup lane, even though he had only previously drove it there. It was found that the choke mechanism had gone over center and was full on for some bizzar reason.

right been trying again today with this. it wont even fire up at all now!!!!! drained and refilled the dashpot oil with atf to see if that helps. checked the choke was correct. all good. checked the needle valve was seated correctly by having fuel pump running without the dashpot on. no fuel coming out. removed the intercooler pipe at the plenum and turned it over just in case there was a block somewhere. checked the carb needle and its a std BCA. got decent fuel in it and new plugs and leads. did a compression check on all cylinders and all about 150psi. only thing i didnt check was the fuel pressure as my pressure gauge hasnt arrived yet, but i am defo getting fuel to the carb. the plugs dont even look soaked either now.

proper getting fed up now. was gonna use it as my wedding car next year too. anyone else have any ideas?

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

oh, and checked for air leaks too. none are visible. not got afr yet, but need to get it started before i can check them.

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

Standard turbo needle is BDD. BCA will chuck loads of fuel in mid to high rev's.

Chances are your plugs are fooked from being soaked.

EDIT: Need to remember to type all the words before pressing post...

Edited by apbellamy on 30th Dec, 2012.

you think it could all be in the needle then? will get a load of plugs. theyre only a quid or so.

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

It should start and run with that needle as the idle bits are the same. Chances are your plugs have died from being wet.

ok. will pick some more up andy. cheers. here is a couple of pics just in case someone can spot if i have ballsed up somewhere.

Attachments:

1.16mb

1.13mb

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops