CPD1973
Active Member
Will hopefully get a look at it tomorrow, blowing sideways rain all day today...... to check for a spark do you just pull a plug out, reconnect the cap, hold it on the block and get someone to turn the key ? That’s what I do on a motorcycle but have only driven diesel trucks my whole life....... what’s the easiest way to check that petrol is getting to the cylinder? Again with a motorbike and a million power tools I just pop the main hose of and see if fuel comes out ! Thanks
rob_bell
Well-Known Member
That's a good thought: the inertia switch would disable the ignition - hence no start!
CPD1973
Active Member
Ok I have pressed the inertia switch, pulled of the main fuel feed and turned the engine, lots of fuel coming out. Pulled a spark plug out and turned the engine and I can see a spark........ turning over and a VERY occasional pop but nothing resembling firing. Having just changed the timing belt etc and had it running is it at all possible that when I turned it over and it jumped forward could it have put the timing out..... I could pull it all apart and see if the marks still line up ? Crazy
rob_bell
Well-Known Member
I've been caught out by the spark before: it boils down to whether it is a strong spark or not. You'll see a weak spark, but a strong spark will be very strong.
But if there is a good spark (from what you say, I am sure there is), then on an early K-series with a distributor (I think this is yours?) the only other thing I can think of is a crank position sensor issue?
Or is there a blocked injector? Fuel getting to the fuel rail may not necessarily mean fuel getting to the combustion chambers. Did the spark plugs look wet (with fuel) when you took them out?
But if there is a good spark (from what you say, I am sure there is), then on an early K-series with a distributor (I think this is yours?) the only other thing I can think of is a crank position sensor issue?
Or is there a blocked injector? Fuel getting to the fuel rail may not necessarily mean fuel getting to the combustion chambers. Did the spark plugs look wet (with fuel) when you took them out?
Alibro
Well-Known Member
It's very easy to think the timing belt is tight enough but it isn't. Did you to the twist test after turning it over a few times?
That is twist the belt at it's longest point and see how far it will twist. It shouldn't go past 90 deg.
I can't remember if you said it was an auto tensioner or manual but never trust either without checking by hand.
CPD1973
Active Member
It’s the auto tensioner, the one with the Alan key.... that you line up with the spring. Anyway I just checked and it was not as tight as it should be, the tensioner had definatly moved. So I have re tensioned it, took the plugs out and turned the cam wheels round to line up the timing marks. It all looks ok. Please see picture and let me know what you think. Thanks
CPD1973
Active Member
To the back of the engine.....Where is the crankshaft marker pointing?
Alibro
Well-Known Member
Not really sure what you mean by that but the camshaft pulleys look like they are out by a tooth from these photos.
Nodge68
Well-Known Member
The inlet cam looks like it's retarded by one tooth to me too.
CPD1973
Active Member
Hay Alibro could you explain this a bit more please, when you say take of the crank pulley and use the two notches what do you mean ?
