Just rebuilt the engine on my series 1, all new bits in the engine , new fuel pump n filter etc, i mean the works have been done

new battery fitted fitted on friday, starter motor is ok , tested it , alternators ok , sometimes it just dont want to fire up ... if you put a set of jump leads on it fires up first time

any thoughts ? baffling the hell outta me

 

well you kow that from the battery on everything works if it jump starts yeah?
so that only leaves you the battery and its connections are they tight and earthed on the inner wing properley?

 

ill double check tonight chap ....

Ive now ordered a new starter motor too

Scott

 

sound slike a crappy earth or battery connection, dont think theirs any need for a new starter if it works with more power?

 

yeah as above ur starter is fine if it works when youve got jump leads on it, trust me im a vehicle electrician save ur money!!!

 

well the starter motor gets extremley hot for some reason, iam going to replace it for a piece of mind , iam having the Co set in the week too .... it wouldnt fire up last night.. so tonight am gonna take the k&n off and fondol with the metering unit bit then she will start ...

it will all be sorted soon ...

 

starter motor is prolly gettin hot cos ur turnin it over for ages, ur not suposed to turn them over for longer than ten secs or they start to burn out!!!

 

very high current goin on there remember

 

is this when its hot

 

my starter used to do that, think it was something to do with the solenoid sticking that fires the bolt out that goes on to the flywheel(think that sounds right).

Used to do the same if I jump started it.

New starter sorted it

Hope you get it sorted

 

does it start ok if you were to tow it or roll it ? then u can elimate starter

 

well tonight ive ripped out the rad and bought a brand new un and getting the new starter tommorow so ill let you know how i get on tommorow night guys if ok

praying it sorts it

Scott

 

Good luck mate

 

may be an earth

 

right it will run if we can get it started

its got to be to much compression or the metering units up the duff

still sorting it

 

Clean and check all the earthing points of the loom!

 

so the new starters turning it over ok?

 

nope its not mate

i reckon the metering unit is up the duff .... ive been told a s2 metering unit will work on it ... my a mate who did work at pts ... so ... i need to buy another metering unit ASAP (cash waiting anyone) and hope that cures it cos weve had it running ...

 

Thing is, replacing the starter and metering unit is pointless if it starts ok when you jump start it, it's gotta be something wrong with the battery or charging circuit, does it carry on running okay when you remove the jump leads? I know you say its a new battery but have you tried another battery that you know is good?

 

it wont fire up now on jump packs or even lorry jump packs, its a new battery and have also got a new battery from a mate and still no difference .....

so i really believe the metering unit is up the duff

 

Sorry dude, didn't realise it wasn't starting even when jumped now.

Well going back to basics, it's either spark or fuel, if you're 100% sure it's not spark then start tracing your way though the system, I usually work from the tank to the injectors so check the fuel tank, pump, all the pipework, fuel filter, and injectors first before swapping out the metering unit cos that's the most expensive part

 

ok its had a fuel pump on it in the last 6 months, i put a new fuel filter on it a week ago, iam gonna take the sparks out tonight and give them a look at as there new a week ago ... the injectors i had my mate give them a clean and he gave me a new 5th injector and a new throttle position sensor and as i said its got new oil, plugs, leads, new distributour , rotary arm, starter etc,

rebuild bottom end bored out and has .5mm oversize pistons, the head came from my mates spare s1 engine which was running fine before fitment

so its got to be the plugs if there coated in fuel ill dry um off first ... or as i said its got to be the metering unit

i dont ask much i just want it to start at the turn of every key

i will get there iam bloody determined

 

Good luck dude

 

well scotts series one is mine now
so im sort of staring off from the above point and would be greatfull of anyones input or ideas
just to bring you up to speed basically the problem is it still isnt running.

When you attempt to start the engine the starter motor turns over very slowly and occasionally the car does fire. When it does fire the revs rise to about 2000rpm and it then die instantly.

i have replaced the 25a INJ fuse in the main fuse box and now the fuel pump is priming every time but at the same time as the fuel pump primes you can also hear a squealing noise coming from the engine bay - this last about the same length of time as it takes the fuel pump to prime and then disapears but then when you turn the key to start the car the sqeaking sound comes back for the lenth of time you have the key turned

any ideas ?

Hope that all makes sense and cant wait to get the car going

 

unplug the cold start valve, airbox off, when someones cranking it over, hold the metering flap down about 1-2mm it should fire up if its turning over fast enough, are the dash lights dim? do they dim when turning it over? is the battery light staying on when it starts? if it idles so high when it starts turn it down a bit (idle screw on right side of throtle if ure facing it) it may ju sneed to idle for a few secs till it warms up, mine will cut out if revved when jus started from cold, when heats up its fine....jus a thot. whats the ignition timming set too? shld be 12degrees with vacum unblocked BTDC or 14 degrees BTDC with vacum blocked (or vice versa) this wuld also play a part in it not starting, i know ure saying its not turning over fast but check that also if i were you id get a brand new battery, if still nothing, renew ALL engine earths and battery earths and alternator/starter wiring.....an take it from there

 

Squealing is usually a sign of the metering flap stuck down slightly and what you hear is the fuel being forced through the injectors. It will be bucketing fuel in for about 5k rpm even though the engine isn't running. I have had them before where the arm that the flap is on has moved across a couple of mm and was catching the venturi and not returning.

 

cheers for the reply.

yep the dash lights dim when it turns over but not sure on teh battery light im afraid.
again not sure on the ignition timing but ill get that looked at ( beyone my scope at the moment lol)
and i reckon im gonna renew all the battery earths etc tommorow so will report back if that make sa difference

Cheers once again

dave

 

apparently the metering unit had been sat for 12 months in a garage before it went onto the car but i have sourced another one so as soon as that comes ill stick it on and give it a go

cheers for the reply