when trying to start it keeps running backward for some reason all timing is correct im a bit puzzled

 

WTF; what you on about?

 

running backwards? rolling backwards ?

 

i think he means the engine is turning the wrong way

 

is it when cranking or when it trys to fire it runs opposite ?

 

Timing sounds like its out mate.
Do you mean it tries to fire then backfires and turns backwards then stops.
(maybe you have fitted a lhd starter lol)

 

when the engine is turning over its trying to fire and then the engine stops and tries to run backwards i have checked the timing and its all correct i have put a new map sensor on and tried a different ecu as well but this does not help any ideas cheers

 

did you time the bottom end up on the lug of the pulley tdc 1 and not the groove next to it??

 

yes noticed that and check its ok thanks

 

only other main thing is that you have the dizzy in the right place pointing at the indent in the metal housing of the dizzy.

 

yep done that one also keep em coming lol much aprieciate it

 

If the timing is ok and the dizzy is ok how can it run backwards?
the spark must be before TDC for it to fire backwards, somethings definately wrong

 

tell me about it im going back to check again

 

If the timings out you're lucky to not be bending valves

 

have you removed the leads for any reason? what have you done before this went wrong.

 

.

 

are the leads on the dizzy cap in reverse order maybe

 

make sure the rotor arm is fixed on the shaft and not broken the little lug off

 

Has the bottom pully still got the little lugs intact and not broken off that the sensor picks up ??


Dunno just a thought as they dont run without the lugs

 

mine does it occasionally mate when its stopped just doesnt have the inertia to get past compression stroke,
so it just turns the opposite way until its off cam lobe
no probs only does it once in a while ...and yes timing spot on etc ..always thought it weird myself but just put it down to being a twin cam

 

ive built this saf from a shell engine come from ebay ive just been back in garage took all leads off marked em all up and refitted to book specs .
rechecked timing its timed up correctly with the lug just before the v the rotar arm lines up with mark on dizzy all spot on it just wont run