Topic: 1960 QD "Franky" project – Page 2 – Antique Outboard Motor Club,Inc

This topic has 14 replies, 6 voices, and was last updated 8 years, 2 months ago by enrico-italy.

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July 5, 2017 at 10:20 pm #61048
outbdnut2
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US Member
Check to see if the gear ratios are the same. I would expect they are different.
Dave
July 5, 2017 at 11:39 pm #61052
fleetwin
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US Member
I think the FDs and QDs pre 1958 used the same gearcase/same ratio, there was a smaller pitch prop for the 10hp application though….
So, he will have to find a different prop I’m sure…
July 5, 2017 at 11:47 pm #61053
outbdnut2
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US Member
quote fleetwin:

I think the FDs and QDs pre 1958 used the same gearcase/same ratio, there was a smaller pitch prop for the 10hp application though….
So, he will have to find a different prop I’m sure…

He’s talking about a 1960 QD – not sure what year FD.
DAve
July 7, 2017 at 12:48 pm #61177
fleetwin
Participant
US Member
Yes, the original engine was a 1960 QD with the small gearcase…
He is attempting to take the QD powerhead and bolt it up to an FD leg and gearcase…
The prop from the small QD gearcase won’t fit the FD leg, at least I don’t think so…And, the prop from the FD leg is probably too large in pitch because it was used with the FD 18hp powerhead…
So, he will have to find the small pitch prop that was used on the QDs with the larger gearcase…
Yeah, all this is confusing, hope I’m not the one that’s totally mixed up…
July 12, 2017 at 4:31 pm #61479
enrico-italy
Participant
I don’t considered the prop a problem.

I think i can easily find a QD pre ’58 prop, or a modern Fastwin 9"x9" .

I’m now verifying if I can solve the lid problem using shorter lid support dampeners…
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