25 replies to this topic

[ohsuchislife]

rebuilt my engine all in ... lined all the dots up on the cam/crank car fills like its missing but all plugs are firing no back firing etc ... 1342 dizzy pointing to number one leads all around ... but when it does start dies picks up again but feels like its missing cant seem to work it out .. never had this problem before .. also wonder if its a fuel problem been off the road for about 4 mths and wondered if the old fuel is now a bit crap .... banging my head against the wall now ..... this picture is not dead

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[Cooperman]

You have the cam timing right, but is it firing on no.1 or no.4 at the setting shown. It is easy to get it 180 degrees out. Bring 1 & 4 to TDC and see which cylinder is firing by checking the rockers.

Secondly, are the valve clearances set correctly using 'rule of nine' to adjust them.

Is the static timing set to approximately 6 degrees BTDC?

[Ethel]

Looks like you could stake over the washer a little tighter to the nut, but could just be the photo.

 

Is it the same cam? I take it you followed a manual  to install the dizzy drive? it can't be far out if it runs - check the ignition timing.

[ohsuchislife]

when its on its firing stroke the cam dot is on the other side .... when i built this engine put the crank on TDC lined up the cam as shown ... i wondered if the cam should be like this on its firing stroke ,,, if it is god knows how you do it ... turned the crank one turn still the same ... turned the cam 180 degrees still does the same ... ive always lined the cam up dot to dot and job done ... think it must be me .... or is it  

[Ethel]

It is an anomaly, dot to dot is actually no4 firing, dot to the far side of the cam pulley is right when no1 fires.

[ohsuchislife]

yeap same cam ... same gearing .... im wondering if am looking in the wrong place ... seems to try and die then pick up again ... but a really bad miss .. checked the tappets etc done a compression test all nice 160 across the board .. etc ... getting to me now ... set the timing to 6 when i did get it running which sounded like two cylinders ... but no plugs were wet all dry ... really strange  

[ohsuchislife]

It is an anomaly, dot to dot is actually no4 firing, dot to the far side of the cam pulley is right when no1 fires.

thought that was right ... build loads of A series engines but never really noticed .. glad that's cleared up thought i was going mad ... ))))

[ohsuchislife]

Looks like you could stake over the washer a little tighter to the nut, but could just be the photo.

 

Is it the same cam? I take it you followed a manual  to install the dizzy drive? it can't be far out if it runs - check the ignition timing.

put a new washer on the cam didn't tap it right just in case had to take it off again

[Ethel]

That's sensible - maybe's an inlet air leak causing the missing??? Though check the iggy timing in case the drive spindle slipped a  tooth out when you dropped it in.

[ohsuchislife]

feels like madness ... going to drain the old fuel out just had a wonder if the rain we have had lately has contaminated the fuel as the car is outside .... start that way ... then TDC on firing stroke Dizzy drives seems to be in ok large bit to the top ...45 angle ...  

[minimender]

Could be the dizzy drive shaft in wrong, be careful if you take it out to reposition it, don't want to drop it in the gearbox, use a bolt screwed in the top of it.

I would set dots up then check the shaft is in right position when cam is lined up

Edited by minimender, 14 February 2014 - 06:13 PM.

[ohsuchislife]

hang on guys think I have just cracked it .. I think I put the dizzy in 180 degree's out ... I put it in on the firing stroke when I should have put it back in when the dots were lined up ... dddoooggghhhhhhhhhhh ... will give that a go in the morning ... once ive put all the cam cover and rad etc etc back in .. not going out no chucking it down  

[KernowCooper]

When you do the distributor and your happy the cam timing is ok, its easier to bring No1 cylinder to TDC firing by watching the valves as said by Cooperman, and the rotor arm should then be about 1 o'clock position when the distributor is inserted correctly..

[Dusky]

if it still doesnt fire, take dizzy shaft out, and put it back in as follow; locate the big 'cut out' in the shaft( the one the rotor points to when dizzy on the shaft,then start putting it back in at around 3-4 o clock,turning it anticlockwise to 1 o clock,this is the standard on an A series.
Make sure number one cylinder( radiator side is on TDC.
goodluck mate!

[ohsuchislife]

if it still doesnt fire, take dizzy shaft out, and put it back in as follow; locate the big 'cut out' in the shaft( the one the rotor points to when dizzy on the shaft,then start putting it back in at around 3-4 o clock,turning it anticlockwise to 1 o clock,this is the standard on an A series.
Make sure number one cylinder( radiator side is on TDC.
goodluck mate!

Thanks mate