Boat Repair/merc oerheat

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Expert: Jeff Grigg - 1/11/2008


Question
Sir I habve a 1100 hp merc [100hp] mid 60.s it stoped pumping water for 5 mins till I noticed steam motor turns over but have I hurt it and can I fit a hydrulic tilt to it

Answer
You may have hurt the motor. You will need to have a compression and leak down test done to see if the rings or pistons are not operating properly. If the tests are OK, put a new water pump on the lower unit and see how it runs.
There is not an easy, inexpensive way to retrofit trim on that motor.
Jeff

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Jeff Grigg

Expertise

Can help with most any question related to outboards, high performance, hull repair, rigging, if it floats and uses a motor. From a 9.9 on a aluminum boat to DFI two strokes. Outboard motors are my specialty. I can help with some I/O questions as well. Ratings are the only way we know if we are helping. If you are pleased with the help, please rate us. 20% don't bother reading my answers! If you are not going to read the follow up then why ask? Keep in mind we do this at no charge and are not paid. We do it to help you!

Experience

32 years in the marine business. Own a service facility, in coastal South Carolina certified Master Tech by Johnson/Evinrude, certified Mercury/Force, Tohatsu/Nissan. Former technical director for DMI Pistons. 30 year racing career including 3 APBA Formula V National Championships

Organizations
AMTECH, APBA

Publications Written For
Boat & Motor Dealer, Car Classics, Custom Vans (tech articles), Miami News, powerboat racing column

Awards and Honors
Certified Master Technician Johnson/Evinrude

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