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newbstar*
22-02-2009, 10:28
After a run in my 5 pulled up at home then the car started to misfire badly and cut out.The vehicle would only restart while pumping the throttle.Fuel you think, well 4psi to carb 2 carb changes no better. Ignition tdc change ,aei change spark is present different cap rotor leads.Found air leak at inlet manifold stud,removed head to helicoil it refitted new h gasket kit and bolts. Compression tested b4 and after this all results good.There was no wash on the head or pistons present no visable damage anywhere?Checked dizzy was turning ok thats good too,different fuel pump relay checked fuses.The model is a 1.5 i beleive e reg,aei in scuttle cant see any overboost wires did this model or the phase one have them.Any help on diagnosing the fault would be great cheers.running out of patience jason.
Mudslinger
22-02-2009, 11:05
new sparkplugs might resolve this , maybe 1 of the leads is causing the missfire :)
w35ty
22-02-2009, 11:58
ye try the leads mate, if not try replacing your dizzy. saw a 5 before, bloke put a new one on stil didnt wanna run.. changed it again and it worked :S wierdd:scratch: lol..
newbstar*
22-02-2009, 12:07
new sparkplugs might resolve this , maybe 1 of the leads is causing the missfire :)
read closer mud:laugh:
newbstar*
22-02-2009, 12:12
read closer mud:laugh:
plugs changed car just wont start now spark an fuel there, possibly ign timing?
RICHIE
22-02-2009, 12:19
are the plugs wet were you have been cranking. is the diizzy cap sat correctly and located with the little lug if it has one and check the dizzy cap has the centre prong still inside it.
RICHIE
22-02-2009, 12:23
and this is also pressuming you have set you valve clearances correctly
Mudslinger
22-02-2009, 13:42
read closer mud:laugh:

:rolleyes: i cant make out in your paragraph where you say you changed the plugs or leads :confused:

nevermind i go back to my :coffee:
newbstar*
22-02-2009, 16:24
and this is also pressuming you have set you valve clearances correctly
valve clearances done correct, dizzy turns as should. Managed to get it running ,but still have to pump the trottle/make the accelorator jet work to start.The car will not idle and you have to to hold the throttle open,car dosnt seem to want to rev too high though? Cap and rotor good.
RICHIE
22-02-2009, 16:36
valve clearances done correct, dizzy turns as should. Managed to get it running ,but still have to pump the trottle/make the accelorator jet work to start.The car will not idle and you have to to hold the throttle open,car dosnt seem to want to rev too high though? Cap and rotor good.

is the mixture screw still in situ
newbstar*
22-02-2009, 16:41
is the mixture screw still in situ
yep mixture screws there. carb is not at fault tried 2 known working items.
Duncs
22-02-2009, 16:46
area the breather restrictors in place?
RICHIE
22-02-2009, 16:50
i would suggets a air leak.
newbstar*
22-02-2009, 16:51
area the breather restrictors in place?

No breather restrictors inline at all ,but neather had any to start with.
Brigsy
22-02-2009, 16:54
Dodgy one way valve on inlet manifold? Servo leaking?
newbstar*
22-02-2009, 16:54
i would suggets a air leak.

leak sorted as per first post ,and this wouldnt make it that difficult to start. What would a blocked fuel return do on the 5?
Brigsy
22-02-2009, 16:57
Blocked fuel return would probably make the fuel pressure really high.
newbstar*
22-02-2009, 17:00
what are the wires down near the starter for as starter motor done about a month ago,possible melted wire down there.
Brigsy
22-02-2009, 17:45
The thin grey wire that goes from the gearbox is for the speedo, the other two relate to starter only. None of them will cause problems like yours.
newbstar*
22-02-2009, 17:49
The thin grey wire that goes from the gearbox is for the speedo, the other two relate to starter only. None of them will cause problems like yours.
tought there was nothing that relate down there on the loom.
Duncs
22-02-2009, 17:49
earth straps ok ?
newbstar*
22-02-2009, 18:08
earth straps ok ?
yeah did volt drop test on both of them ,both ok.
Sparkie
22-02-2009, 23:22
are you running a vernier pulley on your cam...it might have slipped?
Nick k
22-02-2009, 23:59
Your car may have developed a condition called Raj fever. :D
newbstar*
23-02-2009, 11:45
are you running a vernier pulley on your cam...it might have slipped?
possible as dont know the full engine spec and neither did previous owner.The head was ported and had larger inlet valves, bronze guides.