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ContinuousWave: Whaler Performance
Correct Propeller for 1998 75 HP 2-Stroke
|Author||Topic: Correct Propeller for 1998 75 HP 2-Stroke|
posted 11-05-2001 02:27 PM ET (US)
My 1998 75 HP 2 Stroke (on a 17' standard)is supposed to turn 5200 RPM at WOT. It turns 6,100 according to the tach. I called the local merc. dealer and they said it is probably the propeller. I have a 13X22 stainless "turbo prop"that came with the boat. The dealer recommends a 24" pitch and said they have a Laser II they will give me for 379 plus tax. I would like to hear some thoughts on this before I spend the money. Thanks.
posted 11-05-2001 02:32 PM ET (US)
First I would verify that the tach is correct. 1000 RPM over max is way too much! Also, check RPM/Speed/prop specs using threads on this forum.
I would think the dealer could connect his test tach to your engine in a test tank and verify the tach readings.
posted 11-05-2001 03:45 PM ET (US)
For what it's worth, the Whaler factory rigging sheet for the 17 Standard and a Merc 75 2/stk calls for a 12.75X21 prop with the engine mounted up 1 hole.
I agree with Jim and would have the tach checked.
posted 11-05-2001 03:53 PM ET (US)
6100 on a 22" never. Maybe on a 13'. Get that tach checked.
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