Defcon Posted May 22, 2005 Share Posted May 22, 2005 Got roudn to getting both the 1600 and 2ltr heads off, firstly wat should i check for in making sure the heads in good cond. Secondly the exhause valves have got a mud coloured past or looks almost like clay on them, wtf is this? there for a reason or something more synister? Thanks, def' Quote Link to comment Share on other sites More sharing options...
RT Posted May 22, 2005 Share Posted May 22, 2005 normally exhaust valves have a build up of carbon on them... the best way to keep this from happening to to run a cleaning agent through your system once in a while or use some water induction. In fact, you can run your engine at 2000rpm and gently trickle a bit of water down your carb and it will effectively steam clean your engine valves. the reason why yours looks like clay is most probably due to additives like valvemaster. It turns carbon brown/yellow and has no negative side-effects. Don't worry about it. Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 23, 2005 Author Share Posted May 23, 2005 Thanks dude, ill put a pic soon, as its a bit thicker then your usual carbon build up. Def' Pics http://img283.echo.cx/img283/3597/rach0015et.jpg http://img283.echo.cx/img283/2771/rach0025xd.jpg Quote Link to comment Share on other sites More sharing options...
RT Posted May 23, 2005 Share Posted May 23, 2005 Hmmm either that or it's some ugly water&oil mixture boiled up and stuck to your exhaust valves from a blown head gasket... Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 23, 2005 Author Share Posted May 23, 2005 Yeah the H/G looks really new, so u mite be right there, guna be fun cleaning that off. Dont understand why it would only be on the exhaust valve tho, wouldnt it cover the combustion chamber... Thanks dude, Def' Quote Link to comment Share on other sites More sharing options...
Jerm Posted May 23, 2005 Share Posted May 23, 2005 Which one are you going to use? get it bead blasted and crack tested... Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 23, 2005 Author Share Posted May 23, 2005 using the 1600 head jerm, yeah i know i should, but at the mo i cant really be bothered taking the head to bits- and re clearancing ect.... ill do all that when i sort out a cam for now, just wana make sure its all rite then bolt it on... Quote Link to comment Share on other sites More sharing options...
Hemi Posted May 23, 2005 Share Posted May 23, 2005 hrmm well by the looks of things u had alot of oil in the chambers there , but id just say too much additive and it might be olny on the exhuast because it might be the only vlavle that gets hot enough to do it??? , check your plugs they might have the same deposit on them , mine did and it was cos i used too much uppercylinder lube ... Quote Link to comment Share on other sites More sharing options...
Bistro Posted May 23, 2005 Share Posted May 23, 2005 could be that your engine was running lean. if i think what you are explaining is what i am thinking about. Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 25, 2005 Author Share Posted May 25, 2005 Yeah the chambers are covered in oil, but im using a differnt block so it should be sweet,valve steams seals are all sweet in the head so that should be the ned of the oil in the chambers. plugs.....covered in oil and carbon, yum yum! Quote Link to comment Share on other sites More sharing options...
RT Posted May 25, 2005 Share Posted May 25, 2005 yeah it's always the exhaust valve that gets thick deposits and gets that coloured shit from additives. Nothing overly wrong with that aye. Plugs sound like it was running a bit rich... better rich than lean though!! Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 25, 2005 Author Share Posted May 25, 2005 I may aswell just right an essay on head problems, new one for ya RT, ok maybe the valve stem seals are dead, while porting the head, i found oil in the intake ports..... in an OHC changing the stem seals pretty much means takign the head completly to bits....*begins to cry* and i dont have the slightest idea about clearance timing or any of the millions of fiddley bits surrounding the valves/cam...wel guess im about to learn... and splash out for a cam while im at it... ive been murdering the account lately,mrs will me none to happy i will be none to satisfied come friday nights.. booohoooo... any who before i go ripping it all to bits and loosing everything, ill grab all your 2 cents. Thanks, def' Quote Link to comment Share on other sites More sharing options...
RT Posted May 25, 2005 Share Posted May 25, 2005 2cents on what exactly? if your valve stem seals were fucked you'd be able to see them loose and worn when you remove the cam cover. The engine would be quite smokey as oil would be travelling into the combustion chamber and being burn't. This won't have anything to do with oil in your intake tract. Likely cause of that is blow-by if you've still got the crankcase breather attached to the intake. Time for a rebuilt my man. That's life, sure it costs a bit.. you'll have to learn to satisfy your mrs in otherways that arn't money related. Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 25, 2005 Author Share Posted May 25, 2005 Thanks again man....Like i said, im illiterate when it comes to heads.. time for another picture i think. Blocks been rebuilt, but cause its a differnt head, the head hasnt been....Ahwell, guess ill have to get some quotes or just chuck the old 2ltr head on which is in good cond... How much ruffly a head reco worth? Thanks again, "Def-dawg" Quote Link to comment Share on other sites More sharing options...
RT Posted May 26, 2005 Share Posted May 26, 2005 no idea! never paid anyone else to do it. .. fitting new stem seals is a peice of piss. You buy a pack and slide em over the valves and aerodite (glue) em onto the head to stop them coming loose. Make sure you clean the contact area with thinners or alcohol and just a dollop of areodite will do no need to go bezerk. You could strip the head and get it clemically cleaned and maybe get hardned valve seats inserted around $150 I think... a top-end kit comes with all the bits you need such as valve-stem seals. The cam seals are a bitch to fit so be careful, I use a flathead screw driver and try to be really careful not to split it. Then you've got to know how to assemble it all... I dunno, if you arn't confident then just ring up somewhere as ask for a quote. PS. since you're doing the haul might as well get some porting done while you're at it!! Quote Link to comment Share on other sites More sharing options...
Defcon Posted May 26, 2005 Author Share Posted May 26, 2005 Cheers mate, its safe to say i owe you a few beers! Been thinking about gettin a decent cam so i guess ill do a bit more reasrch on that and get the whole lot done! (as above the intake was still conected to the rocker so u mite be rite there) Ill take it down to a shop some where n see what they say. def' Quote Link to comment Share on other sites More sharing options...
RT Posted May 26, 2005 Share Posted May 26, 2005 A little bit of oil in the intake is pretty normal. Concider that most people disconnect the breather from the intake and run a seperate catchcan setup. Thats what I do and there's always a bit of oil in there I have to empty out now and then. & my engines brand new! If you were in chch or thereabouts I could sort you out with a mean 2L head aye. btw you don't owe me anything bro information is what forums are all about! that, and calling lowlancer names. (kidding) Quote Link to comment Share on other sites More sharing options...
Jerm Posted May 26, 2005 Share Posted May 26, 2005 If you were in chch or thereabouts I could sort you out with a mean 2L head aye. Hey RT you know this is a Isuzu G200 not a pinto! aye? Quote Link to comment Share on other sites More sharing options...
RT Posted May 26, 2005 Share Posted May 26, 2005 oh right....um yes. Doesn't make any difference. All heads are the same concept and I can still get head porting cheap. Quote Link to comment Share on other sites More sharing options...
lowlancer Posted May 26, 2005 Share Posted May 26, 2005 OI! Hehe, all good Right, once you've got it going sweet, can you hook me up with prices? Cos at this stage I'm gonna have to buy a shitter 4G63 and half rebuild it, which is where your experience will come in handy. Cheers defy my ass con man Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.