John you have probably just poked 20 years of sludge out, they all build up like that, there are chemicals you can add, might be worth just changing the water every week or so for a few months.
A good starting point if nothing else. are you doing all the dismantling yourself?? Just like a big mechano kit eh?? Colin --- John Hobson <[EMAIL PROTECTED]> wrote: > --- [EMAIL PROTECTED] wrote (edited): > > > you'll be better off running some flushing oil > through the engine then > > doing > > another oil and filtre change (I'm assuming the > engine is a known good > > one > > with previously plenty of go and not just a > cooking hack engine??) > > Don't > > bother warming it through, the potential for > further damage with > > emulsified > > oil is too great to contemplate. > > I was thinking it would be a good idea to get some > cheap oil to flush the > engine through with, I'm not wasting my castrol gtx > magnatex for that! > How long should I leave the engine running to flush > it through? > > > > Rocker shaft dismantle the rockers off the shaft > and flush through if > > you > > must, if the shaft has picked-up where the rockers > pivot you'll need to > > replace that (the shafts are made from a > hard/tough steel-has anyone > > found > > any alternative uses for used rocker shafts?) > > > I had just checked the rocker assembly and I reckon > it's toast. The > rockers are very stiff on the shaft. I will get a > whole new assembly to > be on the safe side. Unfortunately the rocker shaft > from my old engine > is also knackered. > > > Dodgy head gaskets, blown between the cylinder and > the water jacket, > > if you > > look carefully you should be able to see where it > went...seriously > > consider > > taking the head to a machine shop and getting it > skimmed to make it > > flat, if > > it's a low comp ratio USA head, get them to skim > some extra off and run > > it on > > 98-100 oct fuel. > > > I have a spare head that I am fitting from my old > engine so won't need to > get that skimmed. > > > I don't like the sound of bouncing valves off > piston crowns...check the > > valve > > very carefully and all the other springs too have > you not got double > > valve > > springs on your head I thougt all GT6s had double > springs... > > > they are double valve springs (on both engines) and > as I'm fitting the > spare (working) head all the valves should work ok. > Somehow both springs > broke which dropped the valve onto the piston. The > car only ran for a > very short time after this happened. > > I also had a poke around with a screwdriver in the > cooling system drain > hole on the side of the block to find that it is > really very silted up > with what looks like dirt, it is brown, not metallic > and you can crumble > it in your hands. I'm not sure where it came from > or where it has > collected, but I am assuming that a garage should > have the correct > equipment for getting rid of it all somehow? To > clean out a very slited > up cooling system would a garage need the head on or > off the car? > > oh well, hopefully I'll have a working car sometime > in the next few > months........................ > > cheers > John > Yahoo! Health - Feel better, live better > http://health.yahoo.com Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com /// [EMAIL PROTECTED] mailing list /// Send admin requests to [EMAIL PROTECTED] /// or try http://www.team.net/cgi-bin/majorcool /// Archives at http://www.team.net/archive /// Send list postings to [EMAIL PROTECTED] /// Edit your replies! If they include this trailer, they will NOT be sent.
