My mini turbo wont run!
Turbo Mini Forums

Been trying to get my mini running fot the first time, firstly i had the wrong fuel pump on it. This was an electric injection fuel pump and consiquently over pressurised the carb. Fitted a new fuel pump and im getting about 2.5 psi at the fuel feed to the carb which i believe is correct? I can prime the carb, give it some throttle, watch it struggle then start and immediately stops. Has the injection pump knackered the carb? is the carb in need of a good set up? am i being an idiot?

please help, Matt, Nuneaton.

if you would be so kind as to text me then il ring you back - 07790831642, cheers

Which type of fuel pump have you now fitted? Also 2.5psi is a touch low, 3.5 to 4 psi would be better.

Why do you think it is fuel related? Could it be ignition? What work have you done to the engine, e.g. has it been rebuilt? have you ever had it running?

More info needed please in order to help!

Looked at the faq. done all that already!

Fuel pump that was on it ran at about 100psi. tad high me thinks!!!

Probably need a slightly stronger one than is fitted at the mo. Any part numbers etc would be helpful as i have a bosch supplier.

Reason i think it is fuel related is if i prime it then it will fire up. just doesnt keep running! got ignition etc

Engine has been fully rebuilt.

Not even got it going and its already racking my brain!

Cheers for your help

What size fuel feed and return pipes?

What does the fuel pressure do as it fires and then dies?

What colour are the plugs?

pump kicks out around 35psi as standard then uses the turbo regulator to bring this down to 3.5/4psi above boost pressure.

If you have a bosch supplier they list the pump for the metty turbo

Have you tried weakening/richening the idle mixture? choke working ok? does the choke in or out make any difference?

fuel lines are about 7mm bore.

plugs are black

fuel pressure hardly changes. if anything it drops to about 2psi

cheers

Try playing with the mixture a bit. Are you using the choke?

Fuel pressure should not drop, it should be 3.5 to 4psi ALL the time.

Edited by Tom Fenton on 23rd Mar, 2006.

Pump i had was the one listed. like i said i had 100psi! and that was after the px regulator! oops!

Part number needed! please! ?????

You could stick five walbro 255 pumps in series, feeding a stock regulator, and if it is set to 3psi or whatever, and the tank return is less restrictive than the feed to the regulator, it'll sit at 3psi all day long.

You have something wrong - and it WASN'T the pump...

Edited by turbodave16v on 23rd Mar, 2006.

why would you put a 100psi fuel pump on a metro turbo engine? its not an injection

iain says the pump should run at 35 psi?

??????????

Any pump does not produce a "pressure". The pressure is generated by the restriction to the pump FLOW.

Pumps are rated by the FLOW they will produce.

The fuel pump you use needs to be capable of supporting up to 30psi pressure, whilst still maintaining a flow.

All of this is academic. If your fuel system is correct, you should be able to get the pressure down to 3psi. I would try installing a restrictor in your fuel feed to the regulator, to ensure you have sufficient return capacity to tank.

Edited by Tom Fenton on 23rd Mar, 2006.

make sure you have no 2 and 3 spark plug leads the right way round .Been there done that :$ so's Bud666 I think

Metro turbo weekend driver,Mini turbo in the making again!

if youre getting this high pressure after the fuel reg, then surely thats either knackered or not plumbed in properly

Turbo Mayfair - Do you have a rising rate fuel regulator plumbed in?

I cant see you mention one in any of your posts

return pipes same size as the feed. (B)

possibly could be the regulator. il change that.

pretty sure the reg is plumbed up correctly - picture of it in the haynes metro book.

cheers

i mean it could be flooded by now .. reg fucked /plumbed in wrong ..

Everyone knows that instructions only have to be read if the thing doesn't work....

crap in carb?

Everyone knows that instructions only have to be read if the thing doesn't work....

How about a knackered needle valve in the carb?

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

If the engine has been stripped make sure the dizzy drive has been put in correctly, made this simple mistake with my rebuild!!!!

Edited by slim_shadyuk on 1st Apr, 2006.

Whats going to break next!?

Turbominis Worst Advice winner 2006, get in

You should be able to start the engine with the float full and pump not running.

Check also that the float needle works.

You could also bypass your return line by fitting a 10 mm hose from regulator to a bucket or any other container to check if it makes any difference to fuel pressure. I have a high pressure Walbro and have no problems getting the fuel pressure down.

hi Matt, I can nip ova sometime this week if ya like dude.

16V project underway