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this is a g40 hell

nothing but trouble since day 1

i got the car serviced n now white smoke is comnig out the exhust n oil is spraying out the bonent

is it a head gasket job and how fuked am i out of 10?

would u trust any old garage with ur g40 to put a new head gasket?


ck

Yes, probably head gasket, no you're not screwed as it only takes a few hours to change (well, only a few hours on a standard engine, and I don't see why a G40 should take all that much longer) and the gasket itself doesn't cost a fortune.

Lots of white smoke does tend to signify a dead head gasket. If you take it to a garage it will cost you a fair amount to get it sorted but that's mainly down to labour charges. The parts aren't that expensive though, and it can be done yourself. Didn't the previous owner just rebuild the engine though?

It'll be worth you getting the head skimmed while it's in bits to make sure that's all ok.

Garage wise I don't trust anyone much with my car, based on bad experiences in the past.

When was the charger last rebuilt? Could be the oil seals causing oil to spray out, or just a blocked crankcase breather.

On a normal car, I'd say head gasket. I've not got a lot of experience of supercharged engines, but could still be head gasket. Look for a build up of smeg on the oil cap.

How screwed depends on how much and how hard you've driven it since it started to go. Best case new gasket (but on something special like a G, head skim as well). Worst case, new gasket, head, and a block skim

ok the previously owner said he loved his g40, but upon servicing it the spark plugs were corroded from age, the oil was thick tarry black and the oil filter was as dirty as the oil


i used semi synthetic oil, 3 pin spark plugs n a 3 pound oil filter

i didnt rag the car much until today when i kept up to my m8s mustang v8, i hit the limiter a good few times today probably about 10 times today at different intervals

as we were going for it white smoke covered the whole road, i got homw ok no power loss but then i wernt going over 3000 rpm

im home now n need to find a way to toe it to PSD as i live in london, im 50/50 about letting a garage do the car

the guy has reciepts to say the engine was rebuilt in january of this year along with the charger


i did try PTFE grease from maplins it may have caused it

Never hit the rev limiter on a G40!

As it occured as you were ragging it you may have popped the oil seals in the charger which will mean a charger service ASAP!

Quinny beat me to it, but let me repeat NEVER HIT THE REV LIMIT IN A G40!!!

You may well have knackered your oil seals, which would explain the oil under the bonnet.

As for PTFE grease, it's best to stick to what is recommended rather than look for alternatives. If it had silicone in it that won't have helped.

not being an idiot, but is that a general, never hit the rev limiter in any supercharged motor?

damn, i hadent a clue ,

well my mechanic m8 just came n had a look at it n its dunking oil out through the butterly pipe, it had no oil in it at all! so we filled it up n it still smokes but the oil is literally pouring out the butterly pipe

my plan is....


drive it to local garage fix head gasket

drive to psd n get health cheked n put piping back on where its meant to go, e.. rockers cover to charger

any idead where i can get a pipe n flange from?

PoloCornwall wrote:not being an idiot, but is that a general, never hit the rev limiter in any supercharged motor?

Not sure, but it could be the case.

In a G40/60 hitting the rev limiter is a bad idea though. The drop in revs puts stress on the supercharger (as it's driven directly off the engine) and can pop the oil seals. Hitting it occasionally isn't good for it but you may get away with that, hitting it constantly is really going to punish the charger. Not good.

I wouldn't have said it's a great idea driving it anywhere while the oil seals are dead as you could kill the charger completely. I'd send the charger to Pitstop straight away for a rebuild. Ask for some cans of PTFE to be sent back with it. If your mate will help you, then change the head gasket and get the head skimmed while the car is out of use. From what I've heard you can do a head gasket change in a day, but if you send off the head to be skimmed you'll need two weekends to sort it.

Should be fine then.

ok so the case now is that its a higher posibility its the charger??? or it could be both head gasket and charger?


the boost retain pipe is definetly gonig back on thats for sure


my m8 cant do head gaskets...damn! also is there a type of head gasket that can take the punishment of a modified g40 engine?

Stock parts should be fine I'd have thought, head gaskets just go sometimes. Wear and tear and all that.

Sorry to be the bearer of bad news but in all likelihood it's in need of a new head gasket and a charger rebuild.

Why are you so keen to put the boost return pipe back on by the way? Don't forget you need the one-way valve for that! All it does is let oil vapours into the charger which gets rid of the need for lubricating it with PTFE. You can do without it.

o dear so it will be more than 500 pounds then im f****d 10/10 cos its all i got n there no way i can get some 1 to toe it there for less than 100

well oil is pouring out of where the boost retian pipe goes literally pouring out!!!

aint it better to use the oil from the engine to grease the charger rather then spraying some ptfe down there? - i take it oil aint meant to pour out of the pipe..........

hope this works

its a pic of my engine

http://www.geocities.com/ck6uk/engine.JPG

boost return mod looks a bit cowboy ish