Mark, Is there any way of testing that it is indeed the guides?.. and how do I go about replacing the guides?.. or is that a job for the experts? Regards,
Dave >>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<< On 4/4/02, 10:56:59 PM, "mark krawczuk" <[EMAIL PROTECTED]> wrote regarding Re: L24 troubles. Please help: > hi, the valves could also be sticking open because of the guides. my bro > had this problem and all it needed was two new valve guides. > mark k > ----- Original Message ----- > From: "Steve Lamb" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, April 04, 2002 8:40 PM > Subject: RE: L24 troubles. Please help > > >Have just had a bit of a fiddle with the head and have found that the > > >exhaust valves on 4 and 5 ARE sticking open. OK fine. What do I do about > > >that? If I have to take it to someone to get it fixed then I may aswell > > >get them to shave the head while they're at it. > > > > Valves are probably bent, replacement is the only option. Two issues > > to be considered when shaving an L-series head: CR and camchain/valve > > train geometry. Stock thickness of an L6 head is 108mm (some might > > say 107.9 :-) ), so that's really your starting point - determine > > whether the head has already been machined at all and go from there. > > > > >Oh and as a matter of interest I did a leakage test on the head too.. As > > >in rotated the cam til both valves were closed on number x, then flipped > > >the head and filled the combustion chamber with turps. Let it sit for a > > >while and saw if the level of the turps went down. If it did then had a > > >squiz in the intake/exhaust 'tubes' for signs of wetness. Found that > > >there is small amounts of leakage from all comb.cham's. As in it would > > >take approximately 5 mins to drain all the turps out give or take a > > >minute. Most common is leakage through both intake and exhaust valves. > > >At a guess i'm thinking that this is acceptable given that the combustion > > >will also force the valve closed even more and that it would've taken 5 > > >mins to drain out?.. or is it unacceptable? > > > > Personally in these sort of circumstances I would take the head > > completely apart and have the thing checked out throroughly - all the > > valves checked for straightness, refaced, tank the head (clean), > > inspect for corrosion damage, cracking, etc, etc If the $$$ are > > tight then I would at least have the valves checked. > > > > > > > > >So yeah.. part of the problem found.. where to from here? > > >Regards, > > > > > >Dave > > > > > >>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<< > > > > > >On 4/4/02, 2:47:01 AM, "Terry Rudd" <[EMAIL PROTECTED]> wrote > > >regarding RE: L24 troubles. Please help: > > > > > > > > >> No worries Richard, > > > > > >> We all make them and they are embarrassing at times. > > >> I see the dramas with the engine in question still isn't resolved > though. > > >We > > >> are missing something that's hard to pick here, can't put my finger on > it > > >> though, I guess it would be tad easier if I was 500 miles closer to > it.. > > > > > >> regards > > >> Terry > > > > > > > > > > > >> -----Original Message----- > > >> From: [EMAIL PROTECTED] > > >> [mailto:[EMAIL PROTECTED]]On Behalf Of Richard > Clough > > >> Sent: Tuesday, 2 April 2002 8:29 PM > > >> To: [EMAIL PROTECTED] > > >> Subject: Re: L24 troubles. Please help > > > > > > > > >> Terry > > >> I stand corrected. I must have had brain fade. I was thinking of > Mazda > > >> SNA engine not the proverbial Datsun SOHC Lseries. > > >> ----- Original Message ----- > > >> From: "Terry Rudd" <[EMAIL PROTECTED]> > > >> To: <[EMAIL PROTECTED]> > > >> Sent: Monday, 1 April 2002 21:13 PM > > >> Subject: RE: L24 troubles. Please help > > > > > > > > > > > > > > > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
