Asked this question twice, but buried in lengthy other stuff soooo.....
I know of three zincs on my 8V71-TI's
One in the raw water pump
Two in the heat exchanger.
Are there more?
Thanks.
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Thread: Zincs....how many?
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09-17-2020 11:53 PM #1
Zincs....how many?
1978 53' Motor Yacht "LADY KAY V"
Hull number 524
Chesapeake Bay
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09-18-2020 12:05 AM #2
Re: Zincs....how many?
Run the serial numbers past a dd dealer and get a list and exploded view.
Scott
41C117 "Hattatude"
Port Canaveral Florida.
Marine Electronics and Electrical Products Distributor.
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09-18-2020 08:19 AM #3
Re: Zincs....how many?
That call yields 6....... 2 on the heat exchanger, 2 on the fuel pump (I see one) and two on the fuel cooler.... Don't see any.....
1978 53' Motor Yacht "LADY KAY V"
Hull number 524
Chesapeake Bay
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Re: Zincs....how many?
None on the fuel cooler and fuel pump but 1 on the raw water pump and probably intercooler. Over zinking is not good either I was told years ago that 2 in the heat exchanger can cause arcing across the plates from electrolysis
"DON'T BELIEVE ANYTHING YOU READ OR HEAR AND ONLY HALF OF WHAT YOU SEE" - BEN FRANKLIN
Endless Summer
1967 50c 12/71n DDA 525hp
ex Miss Betsy
owners:
Howard P. Miller 1967-1974
Richard F Hull 1974-1976
Robert J. & R.Scott Smith 1976-present
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09-18-2020 09:04 AM #5Senior Member
- Join Date
- Jun 2012
- Posts
- 512
Re: Zincs....how many?
The zincs on the raw water pump seem to break easily. Does everyone use a zinc in this position or leave it out?
JMooney
61 MY 1983 #341
“Jerrie”
Miami , FL
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09-18-2020 09:09 AM #6
Re: Zincs....how many?
Funny you should mention that. PO left this one out. One side is hard to get in and both are upstream of the impeller which means any little pieces that come off go through the rubber....
I got nothing on the intercooler but it explains the two extra ones in your recent picture.1978 53' Motor Yacht "LADY KAY V"
Hull number 524
Chesapeake Bay