9 replies to this topic

[basher]

just changed engines to a 1275 metro engine with a hif44 carb and minisport exhaust.

it turns over but wont start up, dont even get any coughing. theres a spark and theres fuel. ive checked the firing order which was wrong so sorted that out. there must be fuel getting into engine from carb as the garage stinks of petrol now.

im stuck now, anymore ideas, possibly carb needs a rebuild?

[bmcecosse]

It would at least start - no matter state of carb - assuming the piston can move up and down freely ? It may just be flooded - after trying to start with wrong firing order. In which case - rremove plugs - crank it over with throttle wide open (and choke OFF) - and then fit another set of plugs and crank it. Are you certain sure the firing order is now correct ?

[basher]

well me being a bell end connected the fuel line to the wrong inlet and think it flooded, ive done the above and left the plugs out to try and evapourate some more over night, as it wunt start still when i sorted the fuel line out so it must still be to flooded.

firing order is 1342 anticlockwise around the cap, no1 being the passenger side bore. no1 is connect at the dizzy at 1clock. thats correct isnt it?

hopefully tomoro night will all go swimmingly and it will fire up with a bit of play of the mixture screw.

[Pauly]

well me being a bell end connected the fuel line to the wrong inlet and think it flooded, ive done the above and left the plugs out to try and evapourate some more over night, as it wunt start still when i sorted the fuel line out so it must still be to flooded.

firing order is 1342 anticlockwise around the cap, no1 being the passenger side bore. no1 is connect at the dizzy at 1clock. thats correct isnt it?

hopefully tomoro night will all go swimmingly and it will fire up with a bit of play of the mixture screw.

Yep, should fire if nothing else is a miss.

[basher]

still wont start

i tryed taking servo off manifold and spraying easy start down and the engine tryed to kick into action but then i kick a big flame back at me, my first thought was that may be carb isnt actually releasing petrol despite getting it??????? any good ways of testying for this?

a friend suggested though that it could be the timing out and as a result kicked the flame out. so i set piston no1 to tdc by using the rockers on no4 (i was going to use the pulley but its miles out compared to the rockers way,the notch was past tdc prong) the rotar on dizzy pointed to 1 clock so the dizzy cant be that far out so should start still?

[Pauly]

Make sure number 1 is at tdc with both valves shut, rockers on cylinder 1 should be free, sounds like its 180 degrees out, you may be timing it with the exhuast valve open?

Edited by Pauly, 18 January 2010 - 09:31 PM.

[basher]

im pritty sure it was on compression stroke. i got tdc off the rockers on cylinder 4 moving, if no1 was on its exhaust stroke no4 would be compressing wouldnt it so rockers wouldnt move, so from memory i must of had it tdc on compression?

incase it is 180 out, how do i go about solving this? can i do it without taking out the whole dizzy as id like to avoid this incase i drop anything into gearbox

one other thing i have a feeling it might be doing is sparking after its hit tdc could that be the problem?, so if i go clockwise with the dizzy will it give it advance?

[Darkscamp]

it does sound 180 out as i had the same issue when i rebuilt my engine.

undo the dizzy clamp and pull it out. then get a long bolt, screw it into the dizzy dog drive and gently pull it out. twist it 180 and gently replace.

i'm afraid its trial and error on finding the right bolt, i struck lucky with the first one i picked so dont know the size.



have you tried turning the dizzy gently each way while firing the engine up, i've known a car where the timing was only slightly off that wouldn't fire. a quick tweek and boom, the car fired up first time, every time

[Surfbluegarage]

slightly off that wouldn't fire. a quick tweek and boom, the car fired up first time, every time

and now at every show shifty gets under the bonnet and its fires up everytime. hahaha sorry shifty couldnt resist that one!

[Darkscamp]

yeah but he seems to manage the wrong kind of fire when it comes to poor scamp