Posted by Mark C
on 17/4/2009, 8:09 pm, in reply to "Re: Pete Finn"
91.108.98.158
Jeff, thats ideal not teaching you to suck eggs, when you refit check your timing not once or twice but three times had probs setting mine up last time it was measuring about 24 mm out following one turn of the crank and this was after setting to the the standard I think 17 links.
--Previous Message--
:
: Thanx mark, but i also have a spare head c/w
: valves etc regards Jeff
: --Previous Message--
: There is a complet head on E-Bay at the
: moment
: inclusive of valves going for £125.00 item
: number 380104929575 if I re-call its on a
: buy it know could be the cheap and easy
: solution to your problems. This is not an
: item I am selling all be it I have one.
: --Previous Message--
: Hi pete, just striped head, all ext valves
: bent
:
: --Previous Message--
: Jeff,
:
: I would strip the head and measure
: tollerances.
: If ok, just re-grind valves and lube well
: before re-building.
:
: Pete F
: Up North
:
: --Previous Message--
: we poured petrol thru manifolds & it
: leaked out of the valves then gave then a
: gentle tap done it again and it didnt lead
: through the valves
: Jeff
:
: --Previous Message--
: Jeff.
:
: It may not have been shimmed
: correctly......which most are not !!!
:
: How do you know valves are
: "STICKING" ??
:
: Are the valves the correct ones?
:
: Are the stems too long???
:
: Pete F
: Up North
:
: --Previous Message--
: Thanks Pete, I have had the engine for about
: 2
: years, bought as so say reconditioned its
: very clean, gaskets look new and obviously
: has been worked on, ( I have never had it
: running yet) the pistons look ok and cannot
: see any damage anywhere, just with a test
: with petrol it poured through all ex valves,
: so maybe was assembled wrong whoever done
: it, but I will thoroughly check all parts
: involved.
: Regards Jeff.
:
: --Previous Message--
: Jeff,
:
: Sounds like your CAMCHAIN TENSIONER has
: failed and allowed the camchain to jump the
: cam sprockets......allowing your valve
: timing to go all to hell, or someone did not
: put the cams back into the head correctly.
:
: You will need to find 6 replacement
: valves....I suggest new.....and grind them
: into the existing seats.
:
: I would then definitly buy a ZZR1100
: Camchain Tensioner before rebuilding and use
: that.
:
: The only other damage you could have done is
: to the CROWN of your pistons. Look at all of
: these with a magnifying glass for holes or
: scars, as these will get white hot when
: running and cause a siezure. The piston
: crowns must be very smooth and undamaged.
: Depending on the speed you were doing when
: the damage occured, you may have damaged a
: small end or bent a conrod. The only way to
: check this is visibly, so it would mean
: cylinder block removal too.
:
: Also check the area where the valves
: contacted the heads surface itself, as if
: thats scarred, you need a replacement head.
:
: Hope that helps ?
:
: Pete F
: Up North
:
:
:
: --Previous Message--
: Hi Pete, took head off a z1300 engine as it
: was reading 0 comp on all 6, found all 6 ex
: valves & 1 in valve sticking, what cause
: this & how do i sort it, should i be
: looking at anything else. regards Jeff
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