COLEYST200

iTrader: (3)

Hi lads I'm having a problem with the head on my Cosworth focus can any one shed any light on it . Two weeks back it suddenly used some water a bit od as it's very good on that side any way on a small drive after putting some water in the temp on the dash went up into the red and the blower went cold so I pulled over and put some more water in when it was cold a nuth to get the cap off . Well I fort to my self check the oil filler cap and the oil was starting to chang to a cream so I just fort ok the head gaslit is on it's was out so off with the head and to be onist I could not see much rong with it apart from number 3 piston was very clean witch made me think that's wair the gaskit must of gone any way a new head gaskit was fitted and the car was put back togever the old oil removed and as there was a lot of water it the oil I just put some old oil back in the motor to run for ten min then drop it and put some new stuff in . Well the time come to do a road test and to be onist it wa fealing a bit lumpy on one cilinder wall I was only out 5 min and the temp went up again so I got it back home and it had used a good amout of water and the oil was like cream again . It's punting to me that the head is cracked on the inlet side but it would be good to hear your replys to this problem . The head is coming back off tomorrow night and going in to be looked at

Southeastsaph

Did you get the cylinder head pressure tested or surfaced??

COLEYST200

iTrader: (3)

I will be onist mate I did not :-(
I no I should of but it's more £ and as I'm going throw a devours at the mo I'm just trying to keep things going on the cheap but this time it's bit me in the ass .

richard youll

Head off again, pressure test and skim if needed, I've had 2 customers in the last week both one 2wd and one 4wd both head cracked to fook!

COLEYST200

iTrader: (3)

I'm really hoping it's not cracked but deep down I no it's going to be :-(

costina

iTrader: (1)

Could be the water to oil cooler modine......

Disconnect water pipes link together and try again.

BigErn

Could be the block.... I had a 205 block crack a cylinder liner. Got a new liner fitted and engine went again after 1500 mile so so I got rid of the car

richard youll

It can't be the modine because it has a misfire and a piston crown has been steam cleaned , if it was the modine you would solely have oil/water mix, I must say I had a 205 with a pin hole in a bore that when the piston came up put water in the sump and when the piston was down put the water in the bore so you may not have a head issue but a block issue, best bet is pressure test the built engine and drop a bore scope down before you strip it

COLEYST200

iTrader: (3)

Thanks mate I would of looked at the but the head is now off the car and in at a place I use to do my heads in the past my mate Rex tuck it in for me and I should by midday Friday no if it's any good or if it's for the bin . Rex said that the chap was very optimistic when he sore it Ashe said it didnot look like it was sealing 100% on number 3 and that pitting in the water ways was not helping so I'm keeping them Crost at the mo

COLEYST200

iTrader: (3)

Right thanks for your replys lads I'v started to take the motor out of the car as the head come back today with a clean bill of health so we had a good look at number 3 in the block and gess wot the block is cracked . It's a 205 block on 1st over size but luck would have it I'v got a spare 205 in 1st over size so tonight that block has been cleaned up and I will push on tomorrow with getting the old Motor out and build up a new motor as I really won't to get this car to ford fair under its own steam thanks again for your help lads

costina

iTrader: (1)

Good point well made it will teach me to read the post correctly

At least you have found this problem and have a spare block.

Non custom

Least ya got down to bottom of problem