Club G40 Forum
Technical => Engine and Transmission => Topic started by: youngprodigys on September 27, 2010, 09:35:11 pm
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hi guys,
I think I have found why my engine runs badly- I replaced a blocked breather pod after I was getting steam out the rocker cap- no steam/smoke now:-) but it runs crap, and today I decided to get to the bottom of it, I removed the plugs and they were wet and dry black. so I cleaned them up as it wouldn't fire to run and this fixed it - it ran but lumpy as hell so I removed the plugs again and they were black wet and dry. and I had smoke coming from 2 of the cylinders. so I put a long screwdriver down there into the combustion chamber and found a load of black sludge on top of the pistons.
im hoping this is the oil breather problem rearing its head again - as im guessing this is the oil condensation which was coming from the sump through the rings and then eventually out the rocker.
because i havent ran the engine since i did the breather pod change (not long term- just enough to see it was fixed) im thinking it is all the old oil condensation mixing with unburn fuel/carbon deposits to create the sludge.
how do i get rid of it??? i dont want to remove the head as i cant be arsed, what products can i use to clean it out?????
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forte is good for stuff like that mate. id prob fill the cylinders with degreaser leave the plugs out put a cloth over the plug hole and turn the engine over on the starter. bit messy but it should shift alot of the stuff in the cylinders. also flush the engine a few times to get all the nasty emulsified oil out.
http://camskill.co.uk/products.php?plid=m1b13s4323p484&rs=gb
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il give it a shot mate, got the day off so I'm about to get on my crutches and walk to the shops. cheers dood:-)
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well ive cleaned as much as i can but it still runs rubbish - for sale G40 engine
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haha - if you search posts by Youngprodigys I bet 50% say for sale in them.
But you still keep it mate - i'm sure it'll be something and nothing!
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your right - I bet half do. but this time I've had enough. I've ploughed so much money into an engine which won't work. time has ran out now, I've sourced the engine crane and il start breaking this engine up 2nite.
you can only go so far before you snap
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you'll regret it mate your car is sooo nice. you say the plugs are going black and you clean them and they are black again. sounds like its flooding the engine with petrol, have you tried another ecu on the car? i have had a gt that was doing the same and it was due to a water damaged ecu
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how can the plugs be both wet and dry? If they are sooting up then it suggests over-fuelling, has the engine been properly mapped yet? I know Andy has done some work for you, sounds like you need to spend some money on some serious mapping time. Othewise, just stick a standard engine into it and make it more of a show car.
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the plugs are wet and dry, dry black soot on the end and wet black stuff further up the plug. Andy has done some mapping yes- but after then I changed the breather pod as it was breathing through the head. 3months without it moving I have come back to start up what I thought was done has reverted back to square one. this is the only thing stopping an mot. after all this trouble I have had enough of this shit engine and something which actually will work is required
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plugs are jet black dry now. i will post up a video of it tomorrow. it really is a complete mystery as it has not been adjusted or anything since andy mapped the idle - if anything its now WORSE!!!! i dont understand - it hasnt been touch and has sat in the garage, what could have caused this to happen?
i changed the fuel tank 2weeks ago after i put a hole in it - surely that wont make it overfuel like its doing???
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after you have sorted the breathing problem out the map will be out no so will need looked at again, also try a new lambda and blue temp sender. since i put mine on dta management its been spot on runs smooth never misses, it just to hunt up and down the revs at idle prob due to the isv but now no problems at all! good considering you can get 2nd hand dta e48exp ecu for about 200 quid now!
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Got your text. Does it still start and idle fine? Or has that changed?
Your plugs are going to get covered in shite - the engine's been stood for a long time, and there'll be a fair degree of moisture in the oil and fuel. My own car ran like a sack of shit after not using it for 6 months, usually takes a good ragging followed by a fresh tank of fuel and an oil change before I'm happy with things after a lay-up like that.
Lots of cold starts with it overfuelling will eventually poison the plugs too. Sometimes you can resurrect them with a blowtorch, but when doing my Emerald conversion and mapping it I got through 2 sets of plugs as my starting point was so far out that the rich mixture quickly fucked a set of plugs beyond redemption.
If you're not already using them, then I'd try using a new set of NGK plugs (as they're much cheaper than Bosch, and equally as good) and see how it goes.
How old's the fuel that's in the tank now?
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it starts - but just like before as soon as you touch the throttle it dies instantly. (co is still at the 450 you set it at) both blue temp and now lambda are new.
right - so what plugs should i buy? NGK but where from and what part number?
fuel in the tank is brand new - i had to change the tank so its all fresh 1 day old optimax.
so what shall i do about all the shit that may be in it?? shall i remove the head and clean it up so its fresh??? shall i change the oil???
im wracking my brains - as the car is done - yet i cant get it to run....ARRRGGGHHHH
and BTW andy - im not in anyway saying your at fault, far from it! im pissed off i got it sorted and now im back to square 1
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oh and the car dies soon after it turns on, wont hold idle, is lumpy as hell- proper misfiring!
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NGK BP7EVX
try new plugs as andy says your plugs are maybe beyond saving now
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heres a photo of what my plugs look like
(http://www.youngprodigys.com/problems/IMG_0412.JPG)
fubar then
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New plug time :)
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Are the plugs seating down properly? Looks like soot all the way to the top of the threads; that's definately odd. I assume you cleaned the bit in the middle.
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yer plugs are all the way down - i think this was oil from the top of the rocker cover after a little leak.
Well - what can i say- i learnt a lesson today, one that will effect me till the day i die.
NEVER EVER EVER BUY SOMETHING FROM GSF AND NOT CHECK IT!
i bought everything brand new for this engine - and found this little gem today - see if you can tell whats wrong
(http://www.youngprodigys.com/Dizzy-cockup/good.JPG)
this what the inside of a dizzy cap should look like
(http://www.youngprodigys.com/Dizzy-cockup/IMG_0436goodcloseup.JPG)
and this is what i discovered on the other side
(http://www.youngprodigys.com/Dizzy-cockup/bad.JPG)
and a close up
(http://www.youngprodigys.com/Dizzy-cockup/IMG_0440closeup.JPG)
must have been made by a muppet!
from what i can work out- i must have "just" been making a contact when andy came and mapped it- leave it to stand still for a bit....no contact. i changed this dizzy cap today and it actually ran- put old one back on- ran rubbish. its still having problems but it got better and better until it got to late to have it on (it aint quiet) hopefully just cleaning up all the crap.
spark plugs wernt as black as they were above and had started to go brown and white around the electrode
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buy cheap buy twice....
happy for ya mate! though i wish i talked you into selling up so i could of bought it cheap lol :D
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i still might just yet lol, cant believe that i allowed this situation to happen, the part was bought 2 years ago tho.... im an idiot really
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I think it's a bit unfair to label GSF as shit because you've got a knackered dizzy cap you bought two years ago ???
but I'm glad you've found the cause and that it is something simple.
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be the part manufacturer thats fucked up wouldnt it on that cap not gsf doubt they check the stock they get in they just send it out. i aint oing to defend them too much as ihave a few dodgy bits for them but you cant beat tere prices so i will always buy bits form them.
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i dont think i have ever bought anything decent from GSF - looking at the order i bought the cap and blue temp sender at the same time - the blue temp sender was rubbish aswell i remember it because it was ridiculous. the bottom of the sender was deformed and wouldnt fit in the housing because of the deformation.
i must be unlucky, im sure there a good place to get parts from....not for me
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You pays your money, takes your chance I think. I've had a duff thermostat and water pump recently, but over the years I've had mostly good value for money.
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What was up with your water pump I've just bough one from them ?
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Bearing packed in after less than a year/1000 miles. Just short commutes thank fuck.
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Well I just got a water pump from then looks good quality to me and it's got a metal
impellar wich is whY I want as the plastic bits snap of as it did on my last one. Ashame they couldn't manage to get the whole order right they sent me the wrong cambelt. Oh well some you win some you lose in equal measures I find with gsf but can't be beaten on price.
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got this running nicely again (for the moment) gave it a full service with new plugs and it purrs like a kitten on crack
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;D
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just goes to show Andy what happens when you lay a G40 up for a little while! in future if I need to turn it on to move it or for any other reason I make sure it gets to temperature properly before I turn it off!
MOT TIME BABY!!!!!
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is purring like a kitten on crack a good thing? ;)
good luck with the MOT!
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I just hope no-one has been feeding crack to kittens to find out what it sounds like! :o :)
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yeah, crack shouldn't be wasted like that! It's expensive stuff.
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where I'm from (Coventry) we put all the cats in bins
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Haha! Beauty!
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Must be a lot of dodgy MOT emissions tests going on with all those cats being chucked away...
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It's Coventry...everything's dodgy! ;)
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Coventry is shit. Thats all.
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Must be a lot of dodgy MOT emissions tests going on with all those cats being chucked away...
best dad joke on here... ever! :D
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It's Coventry...everything's dodgy! ;)
Coventry is shit. Thats all.
Do you both live there?
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Did for 6 years until a year ago, now just work there.
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Giorgio hangs around cov aswell- we'll have to have a broken G40 get together hahahaha. best way of describing cov is to say it's the opposite of paradise
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There are parts of it that could do with bombing again to be fair! I'm lucky in that I only work nearby and don't have to live there.
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Concrete City is how I'd describe it!
Went to Uni there, 98-01.
Used to live in uni housing on Earlsdon Ave South, then moved to Stoke Green for another two years.
Whose old enough to remember Mr G's? Used to love that club! LOL.
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Wow this is pretty off topic!
By the time I got there in '03 it was all about The Colosseum (Colly), Carey's (Scaries), Diva and Ikon (Pi-kon). The SU saw a facelift in 2004/2005 which by all accounts was £70,000 wasted. Lived all around the east and south of the city in 6 different places lol.
Mr G's? Where the hell is/was that?
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i think mr Gs is the one at the bottom of the precinct. ????
all about the colly, and scholars now. ikon is shut - it aint all that bad to be honest. i only say that because ive driven thro bradford
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Aha Scholars! ;D The only place in the world you can drink a bottle of Lambrini through a curly straw and not look a tool - because everyone else is doing it too!
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eeerrrmm i just have JD and coke like a proper man. none of that lambrini for me. unless i feel like having something to make me chunder
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i think mr Gs is the one at the bottom of the precinct. ????
all about the colly, and scholars now. ikon is shut - it aint all that bad to be honest. i only say that because ive driven thro bradford
Yeah, G's was down at the bottom, same bit that had Virgin Megastore on it, with the escalator outside upto the 2nd floor of it, Cathedral Lanes i think? G's shut in 1999 i think.
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Aha Scholars! ;D The only place in the world you can drink a bottle of Lambrini through a curly straw and not look a tool - because everyone else is doing it too!
Well... only because it's £4 a bottle. I was a student!
G's must be TK-Max or something now then I guess