ROG100

The 82 Euro has a blown head gasket.
Before I strip the engine I wanted to flush the oil/water crap out of both systems.
I plan on taking the rad out so that can be flushed seperatly.

Could I use old (but relativly clean) oil to flush the oil system. I read that someone added kerosene to aid the flush process.
Will I be OK cranking the engine (coil lead removed, spark plugs out and fuel pump fuse removed) to circulate the oil.
The engine did start the first time I looked at the car before I knew about the head gasket issue. Sounded fine and had full oil pressure. Engine will not be started again until I have finished the work.

The water is pretty thick chocolate gunge.
Oil shows some water not much.

Any advice realy welcome.
Thanks,
Roger

Schocki

Roger,
The factory workshop manual of my 944 talks about cleaning the cooling system after "mixing" occured. They use "cold cleaner" which is nothing more than liquid engine degreaser. The heads come of anyhow so cleaning shouldn't be a big deal.
Check the factory workshop manual Vol onhow to clean the oil system. I would just drain, clean everyhting and change the oil after the engine is put together at very short intervals. Until it looks OK.

G Man

You should be able to find a chemical cooling system cleaner at any auto parts store. These usually require you to run the engine for a time to circulate the cleaner and heat it up. I use a garden hose and compressed air nozzle both inserted into the area the thermostat goes to flush my system. Form a seal around the hoses with a rag, turn on the garden hose, and give short bursts with the air. Be careful with the air because you can blow out hoses or your heater core if they are weak. Your pressurized cooling system is only used to about 15 p.s.i. when operating under normal conditions.

dr bob

Many folks have used Liquid Tide for degreasing the cooling system. The no-phospates recipe means no damage to the aluminum bits.

justin

Roger, I have heard of ppl doing this as well, also alot of my customers use a couple quarts of Dexron III trany fluid in the crank case with the oil to clean everything, it is a high detergent fluid.