joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
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ive just put my pistons back in with new rings and big end shells, bores have been deglazed aswel.
whe i try to turn the crank by hand it is very stiff, is this right or is something too tight somewhere?
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DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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is the head on?
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Will_Sport
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Registered: 28th Jun 04
Location: Notts
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oiled up properly?
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
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head is still off, plenty oil about the place too
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Warren G
Member
Registered: 14th May 06
Location: Kent
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should turn freely ish
wrong size shells?
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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shells arent torqued up yet, just nipped. i think it must be the rings. just not 100% sure it shud be that tight to turn.
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Warren G
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Registered: 14th May 06
Location: Kent
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did you check ever time you put a piston in, then turn it over to see if turns freely?
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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il take them out and start again tomorrow i think
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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If you do that, check with the pistons out and you'll know if it's the main bearings too 
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
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mains havnt been touched mate, cheers anyway though
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Warren G
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Registered: 14th May 06
Location: Kent
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and also do what robin said, check without any rings in too
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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cheers guys, will have a lokk 2moro
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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quote:
Originally posted by joey736
mains havnt been touched mate, cheers anyway though
Yeah, but if the crank has been in and out, they could still be the problem
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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crank stayed in, engine is still in car
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lee mitchell
Member
Registered: 26th Jan 01
Location: kent...drive's: eveyones conversion cars hard lol
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witht the crank it will turn freely with the pistons in it will be stiffer. will seem harder to turn over as its been rebuilt. same with all rebuilt engines
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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just a quick question before i put themback in:
is it ok to put cam lube onthe shells as it will be stood a while before being started, i was told that oil slowly seeps out and can cause them to run dry if u are turning the engine byhand a lot?
answers asap please
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Warren G
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Registered: 14th May 06
Location: Kent
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yep thats fine to use, like you said doesnt leak out like oil does
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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cheers mate, im off out todo it now.
in the words of Abe Simpson: "i'll be baaack in i jiffy!"
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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I use MPS assembly lube/cam lube on everything. its normal for it to be a bit tighter than normal due to the bores being honed and new rings.
did you check the shell sizes and crank journals for size? are the rings gapped properly?
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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checked ring gaps, they ok. didnt check jornals tho as dont have access to a micrometer 
cant do it tonite anyway as the torque wrench i borrowed from work starts at 40nm, too high for the old vauxhall 
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djivesp
Member
Registered: 27th Jul 07
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if it's just been re-ringed and re-honed it will be quite tight, sort of tight where anything shorter than a 12" breaker and you won't be able to turn it over by the bottom pulley (uness you're arnie)... (thats with cams in, timed, all ready to go)
It will start freeing up after about 1500 miles when you start putting synthetic in, this is due to new rings exerting quite alot of pressure against the cylinder walls (which are honed), and need miles to bake the rings in.
tbh if the oil DOES seep out, you'll be fine, as within the first few cranking revolutions the oil pump will have already filled up all the internal galleries anyway.
+turning engine over by hand when it's being built (dryish) is also fine, as you wont be reaching anywhere near "wearing out" RPM's by hand . Just make sure surfaces are clinically clean and there's no grit etc...
[Edited on 14-08-2007 by djivesp]
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Warren G
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Registered: 14th May 06
Location: Kent
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are you suppost to bed an engine in if you have just replaced rings and shells? as i reving mine up straight away! 
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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from being first started, mine was doint 7000 rpm dyno runs within 1 hour
running in hard is the best way.
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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well, got round to it tonite, its fine, just me being paranoid i think. shud b sweet as a nut now
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Warren G
Member
Registered: 14th May 06
Location: Kent
User status: Offline
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good to hear
[Edited on 16-08-2007 by warren.g]
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