ok
right i posted a few days ago about my VR 5.0L seemed to have a kick back when trying to start.Since then i took it to my local mechanic and he said starter motor is stuffed. Fair enough so today i went and spoke to a WELL respected auto eleco in my area and he said the starter was dying on the compression stroke and was stuffed So with these two opinions i purchased a new starter and spent 3hrs fitting it (5.0l with pacemakers don't have no room) after all this it's still the same does any body have any idea,s
just check your main power lead to the starter, my dads VR V6 had a similar issue and after replacing the starter, and the battery turned out was corrosion in the power lead restricting the amps to it.
Band
Please name threads properly, thanks.
Real cars are steel cars.
As above. I have seen this also.
Too often.
Better to start with the basics first. Clean the battery teminals and check the earth leads are clean and tight.
+1 to thread names.
If I told you I was a compulsive liar, would you believe me?
Searching for the billion
whats it doing exactly ? Sounds kinda strange to say its dying on the compression stroke.. since its a V8 and you have 4 compression strokes every rev. Is it cranking slowly ?
Definitely check the starter cable and battery.
Donating Member
Sounds to me like someone has been playing with the distributor and have altered the timing or have replaced plugs or leads and got the firing order mixed up. This can cause the engine to 'kick back' when trying to start.
"If anyone disagrees with anything I say, I am quite prepared not only to retract it, but also to deny under oath that I ever said it." --T. Lehrer
"The secret of success is sincerity. Once you can fake that you've got it made." -- Jean Giraudoux
Real cars are steel cars.
in addition to the above post,
If its not the battery,teminals or cables; has the timing been advanced causing the crank speed to drop as the engine is about to fire?
I remember the old carby V8s the distributors used to move if the clamp bolt was loose. I suspect the EFI v8s would be no different?
If I told you I was a compulsive liar, would you believe me?
the timing is spot on checked it many times leads are all correct and i rechecked the earths and power.It seems to be worse when hot, could there be a censor that could be advancing the timing to far whilst its cranking.
Donating Member
Donating Member
If you are sure that the battery is 100% fully charged (headlights dim slightly when cranking), then I'd triple check the timing - not just the timing for number 1 cylinder but all the cylinders as it's very easy to get them mixed up. If you did not remove or play with the distributor or leads before this problem then I guess that will be OK. I seem to remember reading about something on the firewall that i part of the ignition system on the V8's being a prime fail item...an igniter, coil or amplifier??Originally Posted by hld355
Also have you checked for mechanical causes? - like head gasket gone between 2 cylinders, sticky inlet valve etc.
"If anyone disagrees with anything I say, I am quite prepared not only to retract it, but also to deny under oath that I ever said it." --T. Lehrer
"The secret of success is sincerity. Once you can fake that you've got it made." -- Jean Giraudoux
Real cars are steel cars.
What happens if you try it while connected to another car? ie jumpstart.
mmmmmm.....
do these have a shim to stop the starter pinon teeth bottoming out in the ring gear?
If I told you I was a compulsive liar, would you believe me?
ok so after work today Ive stuffed around with it some more. if you hold the key on to try and start it it will wind 3 times and go slow speed back up then slow if u keep doing this it starts pumping black smoke out the ass (unburnt fuel) when i stop cranking you can hear bubbling in the tank. If i only just hit the key on and off so it only turns over once or twice it will start after about 3 attempts
Donating Member
Shouldn't hear bubbling from the tank unless it's very low on fuel and it's sucking air - if this is so, then fuel pressures would be way down due to the air being compressible....so maybe the injectors cannot inject as they need the correct fuel pressure to inject properly.
"If anyone disagrees with anything I say, I am quite prepared not only to retract it, but also to deny under oath that I ever said it." --T. Lehrer
"The secret of success is sincerity. Once you can fake that you've got it made." -- Jean Giraudoux
if fuel presser was low i wouldn't think it would be pumping unburnt fuel out the ass as i said before if you keep cranking it pumps black smoke out
on holiday
check the fuel reg vacuam hose for fuel
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
on holiday
ide be checking the balancer hasnt moved and the timing is way out cause the marks in the wrong place
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
this was my original thought i tried the timing all over the place and it made no difference i think ive near done every think that you would usually look at.Was just dreaming hoping that someone on here would read my post and had the same problem
Real cars are steel cars.
This very much sounds like timing.
This is way out there but......
Something more drastic like the timing chain has jumped a tooth? (I have seen this once before)
Does it feel the same to drive?
If I told you I was a compulsive liar, would you believe me?
drives the same runs good once you get it going
Got a big earth kit on there? No point having a big power lead if you cant earth it. I killed two starters because of this (VR V8).
If you are 100% sure there is nothing is wrong with the ignition timing,or its associated components,Id be looking at some other possible causes including a leaking head gasket.A leaking head gasket can leak enough coolant into a cylinder to make the engine kick back when first starting as the piston has to try to compress and push the coolant back out of the cylinder through the leaking gasket again.Ive seen this a few times over the years.Its very similar to how the engine can kick back when the ignition timing is out.Id get the engine compression tested,and get the cooling system pressure tested.These tests are usually cheap to get done.Also you dont always get the creamy white stuff under the oil cap ,or oil in the radiator, when a head gasket blows or leaks.It just depends on where exactly the head gasket leaks or blows out.
Last edited by Brett_jjj; 08-10-2010 at 12:47 PM.
tried to start it when i got home today so i could take to a mechanic and it wont go at all now. its fueling up bad has plenty off spark pulled off the injector rail to see if i had a leaky one there all good.
hi all today i had a mate come over and look at it he seems to think when its cranking it dont no what cylinder to fire on and sending spark any were until it gets lucky and gets it write does this sound plausible.
Real cars are steel cars.
Check to see if it has spark first, if not, crank it with the ditributor cap off and check the rotor is turning.
If I told you I was a compulsive liar, would you believe me?
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