when i bought my escort turbo, it had a zvh engine in it, its never really run right so ive decided to take it apart and have a look, as its a zetec bottom end, it has the oil return galleys, these havent been plugged, so would this be why my engine aint running right?? whats the effect of not having them plugged and running it with them how it iss? many thanks

 

all depends what running problems you were getting mate?? for what reason did you decide to take the engine apart?? and why do you think the running problems are going to be internial??

 

sometimes it would run on three, other times it wouldnt and it was smoking inbetween the head and the exhaust manifold

 

is this running a decomp plate? any crap in the water/oil?

What do the plugs look like? can you post a pick up of the underside of the head

 

the underside of the head is black, the plugs are also black, these are all so new because i changed them and havent run it much, i dont think it has a decomp plate
i shall get some pictures in a minutee

 

was the exaust manifold gasket blowing?? did you do a compression test? or leak down test? befor removing the head? sure the missfire wasent down to plugs or duff ignition system??

 

what managment is it running? mfi efi? sounds to be running a bit rich to me could have been coking the plugs up

 

the exhaust manifold was cracked in several places, i didnt do a compression test, and i have replaced the plugs and the dizzy and leads are all working fine

 

 

the plate came off the engine and is made by felpro, could that be the decomp plate??

 

a decomp plate would two gaskets on, you would of seen it as you removed the head positioned on the bottom end.

 

ohh okk thanks^^^

 

what managment is it running? mfi efi? sounds to be running a bit rich to me could have been coking the plugs up

the management seems to look standard, and the engine is mfi thanks

 

If its running on three cyclinders and then kicks back over to 4, it could possibly also be down to cam/tappets. My tappets over piston 4 were knackered, they wouldn't kick in until the car was warm, causing it to mis fire when cold. Changed the tappets and worked fine after, (not saying this would be the same in your case but worked for me)

 

thats handy to know, thankyou

 

my engine also seems to get hot really quickly when left idling could this also be something to do with the fact the engine doesnt run right??
sorry for all the questions
thanks

 

or down to headgasket failure or water pump failure, resulting in loss of water. Check head gasket, pump, hoses etc. If it was head gasket you would typically get gunk building up (mayo like) and your header tank would have bits of gunk in it also (where oil has mixed with water)

 

from them pictures it would seem that it was running rich probably choking your engine making it seem like it was running on 3 you should of done some investigating with the engine whole first as it all looks ok apart from what i said

 

i tried n tried to get it running right and couldnt work it out, i took it apart to see what was happening n found the oil galleys havent been blocked off, once ive solved that problem i shall put it back together n have another lil play with itt, what happens if the oil galleys dont get blocked off??
cheers

 

No. 3 looks like it has Det marks all over one side.

 

i would check the cam and lifters as well, if a lifter has decomp'd or the profile has worn considerably I would guess that once the engine is up to temp and the oil visc has thinned they would not function correctly and the valves would not open hence the 3 cylinder synario. Whip out the cam and lifters and take a pic.

I have a sneaky feeeling this may be the problem. Never seen a zvh with the oil galleries unblocked??? though it would leak everywhere?? Very strange, makes you think what else has not been done to normal practice ???

 

yea thats exactly it when i bought the car everything was etiher cable tied on or not done properly, so i fort id take it apart to see what i could find it, il take them out later on and get a picture
cheers

 

i haad an mfi erst which had the same characteristics as yours, this was buggered cam and followers, simple fix but that block needs them galleries sorting, give sitech/jamsport/area 6 a bell if you get chance as these are the people who can give you the right answers straight away to save time on your behalf

 

ok thanks very much for your help
how much would i be looking at roughly to get these blocked and i would think it needs skimming as well?? if soo how much roughly would that cost me

 

Not sure on the skim, just give it a good check, to block the oil galleries about Ł2.00 for bungs which you just tap in.

 

Theres a guy on ebay selling the bungs ready to knock into the galleries or if youve got access to a lathe make them yourself like i did

mark.

 

thanks for that so if i knock them in do i need to get the block skimmed or is it a case of knocking them in and putting back together??
cheers

 

I never blank the front breathers as there is no need, because if you use a ZVH headgasket it does that for you.


Simon.

 

does a zvh gasket have like little lumps then what sit in the holes??
sorry with all the questions, im new to thiss
cheers

 

not really had chance tonite to take the cam outt, il have a read up n get it done asap with pictures
cheers

 

cheers for the help everyone
ive got a new engine now so problem solved