Posted by Jeff Broom
on 17/4/2009, 8:13 pm, in reply to "Re: Pete Finn"
82.32.145.240
ok, cheers mate
--Previous Message--
: 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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