L30 SCT
Member
Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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i got my mantzel,ported polished head, shrick cams, 4-1 manifold fitted today. will get pics up tomorrow. got a small problem. the inlet cam is sticking. it is shrick 268 cams running on standard timing marks. it runs backwards but not the way that the engine would run
anyone got any idea whats wrong?
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AK
Member
Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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valve hitting piston
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L30 SCT
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Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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no its not that, checked it already
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Butler
Member
Registered: 2nd Jun 05
Location: London
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Have you used new followers and springs?
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AK
Member
Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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thought about it afterwards... it wouldnt be if it went round in 'reverse'...
How are you testing this? Hand cranking.... with plugs in?
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L30 SCT
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Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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no just by hand adam. the valves move when you push them down and else works fine. just when you put the cams on it seems to stick. the boy said he could put it all back together and try start it. he said there may not be enough force to turn it by hand
he said there would be a 50/50 chance of it either breaking or starting.
what do you think i should do
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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by hand?? so... not cranking it with a socket bar or anything?!?!
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L30 SCT
Member
Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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just with a spanner.
can you use a x16xe head on a c16xe bottom end as thats what am doing.
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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pmsl, at just bolting it together and starting it!
any burrs anywhere? not tightened them up to much??? take them out and start again
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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have you checked the cam seats? the bits in the head that the cams sit on, mine were dirty and scratched, and this locked the cam up as when the top halves were fitted it tightened onto the camshaft rather than the head
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L30 SCT
Member
Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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the boy thats tightening them with a air ratchet and tightening them a bit more by hand. the standard cams dont work either. but all parts move freely when the cams arent in.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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no torque wrenches involved?
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L30 SCT
Member
Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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well i think he was just putting them in to check if it would turn. if it aint going to turn at that then it wont turn when there tightened even more. saying that he could be over tightening them by hand.
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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check these are clean etc
i had the same problems as you and it turned out to be that
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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also, is he doing them up in the correct order?
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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tried to ring the lad for you leo but there was no answer.
basicly, this is what I would do:
remove belt
remove plugs to lessen compression
turn crank over by hand until the piston touches (very lightly) the valve. then move the cams to create clearance.
do this until piston 1 is 180 degrees from TDC
try moving the cams, they should rotate fully now easily. Make sure they are using plenty of lube on the cams, followers and bearings. if the cams will turn freely then you have narrowed down the problem to the valve hitting the piston.
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L30 SCT
Member
Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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my mate just phoned me he got it working. he doesnt no what it was but it just started turning.
will be a finishing post up later but would just like to say a big thanks to Dave A as he has helped me through everything
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jr
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Registered: 20th May 02
Location: Kent
User status: Offline
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out of intrest i though 264 were max degree on standard psitons
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L30 SCT
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Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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268's have been used on standard pistons.
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jr
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Registered: 20th May 02
Location: Kent
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just wonderd as i thought that "was" the max
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L30 SCT
Member
Registered: 27th Nov 05
Location: aberdeen
User status: Offline
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dave A is running the same. the engine is now turning over
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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its a combo of the lift and duration jr
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Stoneyginger
Premium Member
Registered: 25th Jan 01
Location: Stonehaven, Aberdeenshire
User status: Offline
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Nice one
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