Armagreggon85
Well-known member
- Joined
- 4 Jan 2017
- Messages
- 104
Hi all
I've not posted for a while, as per title I've had some issues to attend to with oil in my coolant. Combined with having a baby 6 months ago I've only just gotten around to taking the engine out of my 3.4 for the 2nd time in 12 months. Initial diagnosis is a crack in the cylinder head on bank 4-5-6. This appears to be between one of the core plugs and and the oil gallery underneath the cam follower housing.
Obviously a new head is out of the question due to cost. A 2nd hand head could be an option but I'm worried about having a similar issue so keen to know more about a welded repair. Has anyone had their 996 cylinder head welded? Can anyone recommend anyone who does this? The car will take a beating on track so it needs to be reliable.
Secondly, what's the consensus on vacuum coolant filling? When filling my engine with coolant, when I last put the engine back in, I followed the workshop procedure in the Bentley manual. Raise the rear of the car, fill coolant, run the engine, top up as level drops etc etc. This is the same procedure I've used a number of times on my car and, like all the previous times, I had zero issues, no airlocks and the car bled fine. However 100 miles after installation there was oil in my coolant. It has been suggested this could be due to not vacuum filling the coolant. Interested to hear opinions....
:dont know:
I've not posted for a while, as per title I've had some issues to attend to with oil in my coolant. Combined with having a baby 6 months ago I've only just gotten around to taking the engine out of my 3.4 for the 2nd time in 12 months. Initial diagnosis is a crack in the cylinder head on bank 4-5-6. This appears to be between one of the core plugs and and the oil gallery underneath the cam follower housing.
Obviously a new head is out of the question due to cost. A 2nd hand head could be an option but I'm worried about having a similar issue so keen to know more about a welded repair. Has anyone had their 996 cylinder head welded? Can anyone recommend anyone who does this? The car will take a beating on track so it needs to be reliable.
Secondly, what's the consensus on vacuum coolant filling? When filling my engine with coolant, when I last put the engine back in, I followed the workshop procedure in the Bentley manual. Raise the rear of the car, fill coolant, run the engine, top up as level drops etc etc. This is the same procedure I've used a number of times on my car and, like all the previous times, I had zero issues, no airlocks and the car bled fine. However 100 miles after installation there was oil in my coolant. It has been suggested this could be due to not vacuum filling the coolant. Interested to hear opinions....
:dont know: