Engine trouble

smoker · #1 31-10-2006, 01:16

Hi all, hope someone here knows what this is, my engine keeps flooding usually when I disconnect the battery or sometimes when the fuel rail is disconnected. When I connect back up again it wont fire atall and just stinks of petrol . Only way to get it to start again is to take out the plugs and heat them with a blow torch then it starts no trouble. After I have done that it will start ok for the next few days.

Its had the block rebored, new turbo, plugs, leads, cap . and the injectors have been serviced by a fuel injection specialist. I'm thinking it could be the fuel pressure regulator but I don't know how to check this ??. Any suggestions much appreciated

s13eater · #2 31-10-2006, 08:51

put a fuel gauge into the fuel line, i've got one permentley fitted.

smoker · #3 31-10-2006, 13:45

Cool, where is the tapping for the gauge on these engines ??

s13eater · #4 31-10-2006, 14:11

mine is in the line just after the fuel filter.

PukkaSilvia · #5 31-10-2006, 20:24

Quote:

Originally Posted by smoker

Cool, where is the tapping for the gauge on these engines ??

Just undo the jubilee clip and remove the fuel hose on the exit of the fuel regulator and get someone to switch the ignition on while you hold the test meter up tight against the hose. The meter will have a cone shaped flexi gromet on the end to make it easier.

Test the pressures before and after the regulator.

Alternatively it may just be flooding because you have an intermittent sparking problem or your ignition timing isnt set properly. Other than that poor compression can stop a car starting

smoker · #6 31-10-2006, 22:58

Thanks for all help and suggestions I'll check them all. I'm wondering if it's worth buying a fuel pressure gauge or getting the fuel injection specialist to check it for me if they are really expensive. Sure does seem to be super thirsty for only a 1.8 litre engine it seems to use £10 of unleaded just backing out the garage a few times. Sure I read in nissan press release they could do 45 mpg at 56 MPH ..i would be happy with just 30 when i'm just commuting to work

I took a plug out tonight and sparked it of another running engine and result was no spark.. after cleaning again it worked perfect so i guess plug fouling is my problem but why it fouls up so badly is a mystery

. Hope it clears up when I get it back on the road... maybe the rings just need bedding in to stop it oiling the plugs up

PukkaSilvia · #7 31-10-2006, 23:02

it wont be the rings unless there damaged or the bores were not calculated properly for the rebore.A fuel gauge is about £15. Also do a compression test,

Is it oil or is it fuel on the plugs? Does the car smoke or breath heavy?

smoker · #8 01-11-2006, 00:03

Compression was 140 psi on all cylinders after the rebuild which seemed a bit low to me . I'm pretty certain the bores are sized properly as the ring gaps were all ok.

The plugs are black like it's been running too rich and soaked in oily petrol. I don't think i'm burning much oil now as the exhaust never smokes

smoker · #9 01-11-2006, 00:12

Just undo the jubilee clip and remove the fuel hose on the exit of the fuel regulator and get someone to switch the ignition on while you hold the test meter up tight against the hose. The meter will have a cone shaped flexi gromet on the end to make it easier.

Test the pressures before and after the regulator.

Won't I need to test the regulator with the engine running as it relies on vacuum in the manifold to control pressure if i understand corrctly. Maybe i'm missing something

PukkaSilvia · #10 01-11-2006, 00:28

Thats a good point.Im getting to used to working on fixed rate regulators at work

. Install a t piece on the fuel line then.Sorry.