Motu
5th July 2005, 17:45
I hope no one ever gets to try this on a bike,but it's not often I get to repair something with a magic bottle....
We had a 93 Surf in the other day,with the 2L Turbo motor,it had a big coolant leak.The bottom hose had a 100mm split in it,more a burst really -(hindsight - that was a clue dummy) this thing had got really hot and the cooling system was a rusty mess,there was no way it could hold water,but it ran well on 4 cyl and there was no chuffing out the coolant filler cap.So we flushed the system while waiting for new hoses to arrive and put in a new thermostat as a precaution.
But on starting it up with water in it we had a geyser out the top - we use a funnel on the filler neck which allows us to monitor cooling systems,purge air,etc.Oh boy,that was a waste of time...I should of known really,the clue as mentioned was the burst hose,split from combustion pressure - but hey,it was worth the gamble,and we needed to prove it anyway.With one of these motors we can almost gaurantee a crack cyl head,most likely not repairable.But new heads are cheap - anyway,we are looking at a couple of grand here to get back on the road.
The customer doesn't want to repair it,he just wants out - this is the way it's going now,people just walk away from good vehicles as they are not worth the cost of repair.Actualy I might want this one for my daugter...I'll talk about it with him tomorrow.So....I say I'll use some Liquid Copper and see if we can get him something to drive away to think about what to do with it.
Master Liquid Copper comes in a couple of sizes,and I use the big bottle of 473ml,used for trucks.I don't really think it'll seal a head gasket,but it's good on cracks and have actualy seen it creep through and seal.I can't even run it with water in,so put in a little water,then half the Liquid Copper,start the engine and slowly pour in water - in less than a minute we have no more geyser and the water can keep going in.I get the funnel with a little water in and continue to run it....there are still bubbles coming up if I give it a rev,but after 10 or 15 min that no longer happens.I put the rest of the bottle in and over the day run and cool it several times,then this afternnon take it for a drive.No problems,no pressurising,no overheating,no coolant loss.Tomorrow I'll do a cold start and see how we go - this morning it was hydraulicing,tomorrow will see it we have a seal.
This is not a fix,he knows that,it's just to get it drivable and out my door,but I thought it was pretty impressive - from something that wouldn't hold water to for all intents and purposes a good running engine....
We had a 93 Surf in the other day,with the 2L Turbo motor,it had a big coolant leak.The bottom hose had a 100mm split in it,more a burst really -(hindsight - that was a clue dummy) this thing had got really hot and the cooling system was a rusty mess,there was no way it could hold water,but it ran well on 4 cyl and there was no chuffing out the coolant filler cap.So we flushed the system while waiting for new hoses to arrive and put in a new thermostat as a precaution.
But on starting it up with water in it we had a geyser out the top - we use a funnel on the filler neck which allows us to monitor cooling systems,purge air,etc.Oh boy,that was a waste of time...I should of known really,the clue as mentioned was the burst hose,split from combustion pressure - but hey,it was worth the gamble,and we needed to prove it anyway.With one of these motors we can almost gaurantee a crack cyl head,most likely not repairable.But new heads are cheap - anyway,we are looking at a couple of grand here to get back on the road.
The customer doesn't want to repair it,he just wants out - this is the way it's going now,people just walk away from good vehicles as they are not worth the cost of repair.Actualy I might want this one for my daugter...I'll talk about it with him tomorrow.So....I say I'll use some Liquid Copper and see if we can get him something to drive away to think about what to do with it.
Master Liquid Copper comes in a couple of sizes,and I use the big bottle of 473ml,used for trucks.I don't really think it'll seal a head gasket,but it's good on cracks and have actualy seen it creep through and seal.I can't even run it with water in,so put in a little water,then half the Liquid Copper,start the engine and slowly pour in water - in less than a minute we have no more geyser and the water can keep going in.I get the funnel with a little water in and continue to run it....there are still bubbles coming up if I give it a rev,but after 10 or 15 min that no longer happens.I put the rest of the bottle in and over the day run and cool it several times,then this afternnon take it for a drive.No problems,no pressurising,no overheating,no coolant loss.Tomorrow I'll do a cold start and see how we go - this morning it was hydraulicing,tomorrow will see it we have a seal.
This is not a fix,he knows that,it's just to get it drivable and out my door,but I thought it was pretty impressive - from something that wouldn't hold water to for all intents and purposes a good running engine....