Dtwo1946
Active Member
My 1993 Yam 60FETO raised and lowered OK most of the time, but then it would slowly run down and stop.
It's now hanging on an engine hoist in my garage. I intended to split the PTT unit from the engine but the left and right transom brackets that need to be separated before the PTT unit will agree to come out are seized. I've given the brackets a dozen cycles of heat plus liberal amounts of Dexron III/acetone 50:50 mix to no avail. It's the old steel to ally corrosion problem.
I managed to position a small bottle jack horizontally between the brackets and pumped it up. The brackets still would not shift. The engine tilts OK because it's only the extreme ends of the steering tube that are fused to the brackets.
I've given up, left the PTT unit in the engine, and just removed the motor (by the way, £160.00 in the UK, £66.00 from the states including shipping and customs clearance). The old motor is Yamaha OE and has a big hole in the casing from corrosion. I'm almost certain the fluid is also original and the PTT has not been serviced in it's life.
After all this I don't want to shag the whole thing by using the wrong replacement fluid. The advice on the web is confusing. Some people saying Dexron III ATF is OK, some say not! So-called PTT fluid is quoted at about £15.00 a litre and the money's not a problem.
However, in my garage I've got a litre of Dexron III ATF and a litre of Land Rover cold climate power steering fluid which is expensive and very hi-tech.
I've almost decided that, as the ATF is not specifically rated for hydraulic systems and the Land Rover stuff is, I should go with it. Am I right?
It's now hanging on an engine hoist in my garage. I intended to split the PTT unit from the engine but the left and right transom brackets that need to be separated before the PTT unit will agree to come out are seized. I've given the brackets a dozen cycles of heat plus liberal amounts of Dexron III/acetone 50:50 mix to no avail. It's the old steel to ally corrosion problem.
I managed to position a small bottle jack horizontally between the brackets and pumped it up. The brackets still would not shift. The engine tilts OK because it's only the extreme ends of the steering tube that are fused to the brackets.
I've given up, left the PTT unit in the engine, and just removed the motor (by the way, £160.00 in the UK, £66.00 from the states including shipping and customs clearance). The old motor is Yamaha OE and has a big hole in the casing from corrosion. I'm almost certain the fluid is also original and the PTT has not been serviced in it's life.
After all this I don't want to shag the whole thing by using the wrong replacement fluid. The advice on the web is confusing. Some people saying Dexron III ATF is OK, some say not! So-called PTT fluid is quoted at about £15.00 a litre and the money's not a problem.
However, in my garage I've got a litre of Dexron III ATF and a litre of Land Rover cold climate power steering fluid which is expensive and very hi-tech.
I've almost decided that, as the ATF is not specifically rated for hydraulic systems and the Land Rover stuff is, I should go with it. Am I right?