you could have cracked your cylinder head and have lost compression, apparently the 106 diesel is renowned for this and I can attest to it because mine blew last month because it ran out of water, I have scrapped it now as it was going to cost £400 to get it fixed, but in your case, I would check you had no oil in your water or water in your oil, if you take off your oil filler cap and look for a cream white deposit on the inside, if it's there then you have either a blown gasket or a cracked cylinder head .....good luck
Derek
September 2007