Head gasket and heater valve help

Oct 27th, 2004, 09:07

The head gasket has blown on my 740 (B200E). Unfortunately I had to limp home so it got worse, one cylinder full of water and leaking out of the side of the gasket. Oil emulsified with the water. Could this have done any further damage? Should just an oil and filter change be sufficient to clean out the oil system?
Any tips on replacing the gasket, I'm about to start today. I've been looking through and see it is suggested to split the exhaust at the downpipe rather than remove the manifold - worth trying?
The heater valve has been slightly leaking for ages (damp carpet drivers side). This would be a good time to replace it. Again any tips on this. There appears differing opinions on how difficult it is! Any suggestions on where to buy replacements from?
Thanks
Steve

vjck_uk · Oct 27th, 2004, 14:53

The oil side should be ok with a change,there will be a little water left in but a good run will fix that.
The head gasket going will need to be investigated as to why it went.
You will have to look carefully for any cracks or even better get it crack tested to be sure if you drove it far.
The head will at least probably need skimming and the engineering firm that skim it would also be able to crack test it.
As to the heater valve I would think you would get one easily enough from one of the firms who advertise in the VOC magazine.
It may be easier to split the exhaust at the downpipe but the engineering work would be a lot easier with the manifold off.
If all goes well I would put a new cam belt on while it's down.

Oct 27th, 2004, 09:07	#1
SteveH Guest Location:	Head gasket and heater valve help The head gasket has blown on my 740 (B200E). Unfortunately I had to limp home so it got worse, one cylinder full of water and leaking out of the side of the gasket. Oil emulsified with the water. Could this have done any further damage? Should just an oil and filter change be sufficient to clean out the oil system? Any tips on replacing the gasket, I'm about to start today. I've been looking through and see it is suggested to split the exhaust at the downpipe rather than remove the manifold - worth trying? The heater valve has been slightly leaking for ages (damp carpet drivers side). This would be a good time to replace it. Again any tips on this. There appears differing opinions on how difficult it is! Any suggestions on where to buy replacements from? Thanks Steve

Oct 27th, 2004, 14:53	#2
vjck_uk Premier member Last Online: Jul 29th, 2017 15:54 Join Date: Nov 2002 Location: southern edge of birmingham	RE: Head gasket and heater valve help The oil side should be ok with a change,there will be a little water left in but a good run will fix that. The head gasket going will need to be investigated as to why it went. You will have to look carefully for any cracks or even better get it crack tested to be sure if you drove it far. The head will at least probably need skimming and the engineering firm that skim it would also be able to crack test it. As to the heater valve I would think you would get one easily enough from one of the firms who advertise in the VOC magazine. It may be easier to split the exhaust at the downpipe but the engineering work would be a lot easier with the manifold off. If all goes well I would put a new cam belt on while it's down.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)