The fuel system - 93 model

The fuel system - 93 model

Author
Discussion

PapaButch

Original Poster:

235 posts

123 months

Friday 23rd January 2015
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Hello guys, could you help and outline from start to finish regarding the fuel system? I think this is stopping my chimaera from starting and running.

It had a fresh rebuild and not having any luck getting the girl to run, actually it did run when John was down but got progressively worse, started on all 8 and those numbers diminished pretty quick. Used easy start to fire her up but now, nothing...any ideas or any enlightened tvr monks had same problem before?

Chris

s p a c e m a n

10,776 posts

148 months

Saturday 24th January 2015
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Fuel pump priming? Got Roverguage? Take the side repeater indicator off of the car and plug it into one of the injector plugs to make sure that the injectors are firing. Got a fuel pressure gauge? Tried unplugging the maf sensor?

Is it just spinning over and doing nothing, or coughing and spluttering occasionally?

You got the timing right, all of the leads on the right way? Can you put the dizzy in upside down on these things, did it run ok for those few moments when it did run?


We need more info!! hehe

PapaButch

Original Poster:

235 posts

123 months

Sunday 25th January 2015
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Fuel pump is priming! Fuel comes out of the hose going into the manifold! - It did run real nice, but not for long at all...I do not have a rover guage and my maf sensor was blown out by an explosion using easy start....Timing is SPOT ON biggrin - Leads are on correct as well!

PapaButch

Original Poster:

235 posts

123 months

Sunday 25th January 2015
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and yes it just spins over, no coughing at all when trying to start..I am in the middle of a compression test i will post results up soon

Barreti

6,680 posts

237 months

Sunday 25th January 2015
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Sounds more like the problem is with the ignition system rather than the fuel system.

Have you got a good spark?

s p a c e m a n

10,776 posts

148 months

Sunday 25th January 2015
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Yeah, even if it was flooded you would get the occasional splutter so I would be going for ignition too. Check the injectors are firing though with a bulb, it could be a dodgy connection on the fuel loom.

If the maf is still plugged in and you've exploded it, unplug it. In fact try it with the maf unplugged even if you haven't killed it..

Check spark!! biggrin

PapaButch

Original Poster:

235 posts

123 months

Sunday 25th January 2015
quotequote all
Well that's the other thing...i have replaced spark plugs, leads, cap and rotor arm...there is a very good spark and is earthed well.

s p a c e m a n

10,776 posts

148 months

Sunday 25th January 2015
quotequote all
Cool. Check the injectors are firing correctly then and take out a sparkplug to see how/if it is wet in there. Maf sensor could be screwing the fueling up and there have been cases of injectors running constantly from fuel loom issues.

PapaButch

Original Poster:

235 posts

123 months

Sunday 25th January 2015
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Hmmm okay ill do that - ill need to buy a sensor thingy that flashes the light .... erm, i just went to start it again and i can hear a pop pop pop like an echoed pop...doesnt sound like it is about to start but can hear something like a pop...any ideas?

s p a c e m a n

10,776 posts

148 months

Sunday 25th January 2015
quotequote all
You don't need a sensor light thingy, the ford side repeater bulb holder plug should fit into the injector loom plug. Take the side repeater off of the car, plug it into one of the injector plugs and the bulb should flash whenever the injector would pulse..



The pop is probably fuel, take a sparkplug out to see if it's flooded in there smile

phazed

21,844 posts

204 months

Sunday 25th January 2015
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Have you put the fuel pipes round the right way on the fuel rail/regulator?

PapaButch

Original Poster:

235 posts

123 months

Sunday 25th January 2015
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Yeah i checked and swapped them over, did not start but good thinking! So I swapped them over and John from Brundall was sure we had them right anyway...funny thing is, before we took everything apart the car did run and started everytime!! Im hoping the wiring is fine because we had to extend the stepper motor wiring because it was caught on something :/

PapaButch

Original Poster:

235 posts

123 months

Monday 26th January 2015
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those are different to my side repeaters...I have orange ones - it is a 93 model, and the plug inside does not disconnect, the wires go straight into it and i have this gunk stuff covering it all up :/ any other ways?

phazed

21,844 posts

204 months

Monday 26th January 2015
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Just use a standard test lamp, one to earth and the other to one of the pins on the plug or something like that, it's been a while!

PapaButch

Original Poster:

235 posts

123 months

Tuesday 27th January 2015
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Phazed I think it has something to do with the timing...my boss said you cant time the distributor up without the engine started? John timed it up with a timing light as we were turning it over, i think this may have something to do with it...can you enlighten me any further?

Barreti

6,680 posts

237 months

Tuesday 27th January 2015
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So you've retimed the car too then?
Why did you do this? Have you had the dizzy out?
If so, are you certain you've got it back correctly and timed it to TDC?
Are you sure you've got the firing order and plug leads correct?
Have you had anything else apart or unplugged - ignition amp or coil for instance

phazed

21,844 posts

204 months

Tuesday 27th January 2015
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So, has it actually run at all, (without easystart) since the rebuild?

PapaButch

Original Poster:

235 posts

123 months

Tuesday 27th January 2015
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I've had the whole engine out of the car for a performance rebuild!

The car has not started on it own, and wont start even with easy start now (dont want to wash the bores to much)

Yes I put the dizzy back in but completely forgot to time it up i just stuck it in (i am only 23) and still a newbie with mechanics really even though it is my job.

But John said he had it timed up and used the timing light to do so, I am stuck for words really

phazed

21,844 posts

204 months

Tuesday 27th January 2015
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It's more then likely the problem.

If the dizzy was put in incorrectly then you've no chance.

Who's John?

You need to set No1 cylinder at TDC then drop the dizzy in so that when in position the rotor is pointing at No1 contact on the dizzy.

Work round from No1,... 1, 8, 4, 3, 6, 5, 7, 2,
rotation clockwise as viewed from top of dizzy
Passengers side odd numbers with number 1 at front of engine
Drivers side even numbers with number 2 at front

Mark in white 28 degrees on the pulley.

Start her up with timing light connected to No1 and check.

Timing should be correct at medium engine speed with vacuum disconnected.

That's if I've remembered correctly smile

phazed

21,844 posts

204 months

Tuesday 27th January 2015
quotequote all
It's more then likely the problem.

If the dizzy was put in incorrectly then you've no chance.

Who's John?

You need to set No1 cylinder at TDC then drop the dizzy in so that when in position the rotor is pointing at No1 contact on the dizzy.

Work round from No1,... 1, 8, 4, 3, 6, 5, 7, 2,
rotation clockwise as viewed from top of dizzy
Passengers side odd numbers with number 1 at front of engine
Drivers side even numbers with number 2 at front

Mark in white 28 degrees on the pulley.

Start her up with timing light connected to No1 and check.

Timing should be correct at medium engine speed with vacuum disconnected.

That's if I've remembered correctly smile