dropbear68
Contributing Member
Today I started playing with the cooling system in my boat, on the AQ130 Volvo motor which is a B20 at the front of the head under the thermostat housing block is my issue, when I put water into the system it started pissing water out the bottom of the housing block, I had a look under there and here is a big hole I thought something must have been there as there was one bolt there and that was it so I did some scraping and found a broken bolt stub in the block so obviously this was the block off plate fitted during the marinising as I think the water pump in a car feeds into this hole, Im guessing no easy fix here the head has to come off ?, this will annoy me but I have a spare head on a car that wont have the corrosion issues, not even going to try and fix the busted bolt Ill just scrap the head, now I definitely want to strip the oil cooler and flush the engine out, lot of white crusty rubbish coming out of the pipes and the outlet pipe on the water pump was restricted with the same rubbish, so not going to rush things with this Ill methodically strip the lot and make sure its up to scratch