first inboard

renny1

Petty Officer 1st Class
Joined
Jul 10, 2007
Messages
219
Re: first inboard

hope these help the z drive i have no idea till saturday when i pick the boat up
 

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Iowamechanic

Recruit
Joined
Jan 30, 2008
Messages
1
Re: first inboard

Exactly my sentiments. My 4.3 V-6 185 Hp will only do 38 MPH with one or with four people WOT 3800 RPM. Mine's a Four Winns 190 Horizon 19 ft

you need a smaller prop for your boat at 3800 your 1000 rpm low
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: first inboard

you need a smaller prop for your boat at 3800 your 1000 rpm low

There are more things than a prop that will cause the rpms to be 1000 low, and I seriously doubt it would be the prop since 1" of pitch only changes the rpm by 100 to 150 rpm. That would requires a lot of change. 7 to 10 of pitch change.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: first inboard

If you can send the pictures in a PM, then you can post them bigger. It's the same software. Then the rest of us can see what you have in those pics.
 

renny1

Petty Officer 1st Class
Joined
Jul 10, 2007
Messages
219
Re: first inboard

shall we try this one
thanks don s
 

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Don S

Honorary Moderator Emeritus
Joined
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Messages
62,321
Re: first inboard

Yes, it worked, you can now click on the pictures and they get bigger.
While the drive looks like a 270, it could also be a 250. They look the same, but the 250 had staight gears, not helical.
There should be a tag on the upper gear box of the drive. What is the first few numbers after the PZ?
 

renny1

Petty Officer 1st Class
Joined
Jul 10, 2007
Messages
219
Re: first inboard

well i finally picked her up and here are the details
engine number/b204989
leg number/2784 123c
does this help
also the brand new spark plugs are very sooty(dry sooty) indicating a rich fuel mixture how do i un-richen it ?????
 
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