clipperqb wrote:
So I did exactly as you described yesterday. I backflushed from the inlet of the oil cooler to the drive. No problem, water flowed out of all inlet holes. I then had a friend put the muffs on and squeeze. No water came out of the hose (at the oil cooler), all water was coming out of the sides of the muffs no matter how hard they were squeezed. Occasionally, some water would come through, quite a good flow actually for 10 or 20 seconds then just stop.Did this for 15 minutes or so and it never flowed for an appreciable amount of time. There has to be something going on in the tube in the drive.
Was the engine running? The Engine has to be running while you squeeze the muffs...
OR remove the impeller and put the pump cover back on and try again with the engine off....