dubdubz
Well-known member
Hello
I went to help out a local Vdubber set his valves after losing an adjuster, and needing a cut to length rod....
So its a 2110, not sure of cam but has a flame thrower or MSD type distributor which seems to have no markings for #1??
So I bumble over - rocker cover is off anyway...set to TDC and rotor is pointing at where no.1 is on cap and there's no gap on the valves?? backed the elephant adjusters right off and still no gap....??
OK
so we found the balls were not orientated right and the flat wasn't on the valve stem...quick remove of the rocker and reinstall - appears better.....
but no.
So we spin engine [by hand] a couple of revolutions and start again - still the #1 gaps are tight - tighter than the others?? I could probably just get it at 6thou, but the adjuster is right out. This engine has around 200miles max on it from brand new??
Now the other thing that greatly puzzles me is the head studs are quite a way through - as in almost or possibly actually touching the shaft?? I'm guessing this has 'stroker' head studs, and therefore longer but surely not so long they are fractions of a mm if not touching the rocker shaft??
So couple of Q's
Any instant - "oh I had this - have you checked?"
Of those that have built big strokers what amount of head stud is poking through? Did you have to adjust them by trimming??
Just for my sanity - the adjustment should be the same as bog std type1? TDC, pointing to #1 - adjust #1 inlet and exhaust, rotate anticlockwise, do #2 and so on?
I may have to remove #1 plug and remove the dizzy from the initial 'what firing position am I on' in case....
I'll also drop a straight edge along the stem ends just to check...
Of course this is a new build built by someone good, so it should be all ok, and of course we'll drop it and take back if required - it's just that isn't as easy as setting the valves right - in his garage once I've worked out that I'm a retard and doing something wrong... :lol:
Actually the only thing I just realised is the pulley is an empi one with a stick on timing ring...perhaps this fell off? and has been stuck on wrong --- if so how can I work out TDC??
cheers
Darren
I went to help out a local Vdubber set his valves after losing an adjuster, and needing a cut to length rod....
So its a 2110, not sure of cam but has a flame thrower or MSD type distributor which seems to have no markings for #1??
So I bumble over - rocker cover is off anyway...set to TDC and rotor is pointing at where no.1 is on cap and there's no gap on the valves?? backed the elephant adjusters right off and still no gap....??
OK
so we found the balls were not orientated right and the flat wasn't on the valve stem...quick remove of the rocker and reinstall - appears better.....
but no.
So we spin engine [by hand] a couple of revolutions and start again - still the #1 gaps are tight - tighter than the others?? I could probably just get it at 6thou, but the adjuster is right out. This engine has around 200miles max on it from brand new??
Now the other thing that greatly puzzles me is the head studs are quite a way through - as in almost or possibly actually touching the shaft?? I'm guessing this has 'stroker' head studs, and therefore longer but surely not so long they are fractions of a mm if not touching the rocker shaft??
So couple of Q's
Any instant - "oh I had this - have you checked?"
Of those that have built big strokers what amount of head stud is poking through? Did you have to adjust them by trimming??
Just for my sanity - the adjustment should be the same as bog std type1? TDC, pointing to #1 - adjust #1 inlet and exhaust, rotate anticlockwise, do #2 and so on?
I may have to remove #1 plug and remove the dizzy from the initial 'what firing position am I on' in case....
I'll also drop a straight edge along the stem ends just to check...
Of course this is a new build built by someone good, so it should be all ok, and of course we'll drop it and take back if required - it's just that isn't as easy as setting the valves right - in his garage once I've worked out that I'm a retard and doing something wrong... :lol:
Actually the only thing I just realised is the pulley is an empi one with a stick on timing ring...perhaps this fell off? and has been stuck on wrong --- if so how can I work out TDC??
cheers
Darren