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All of my manuals are on the boat, many miles from here. I have a question about the gear ratio on the original V Drive installed with the W58. What is the gear ration of the -20 and what is the gear ratio of the -26 the replacement for the original.
I am thinking of replacing the V Drive. At the same time, I need to have my prop repaired. I need to find out if I can keep the pitch or will I need to have it re-pitched when I put in the new V Drive ( if the ratio is different).
Thanks
alan_______________________________________________
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Hi Alan:
I am sure Rich will comment, but here is the link to his discussion about going from the RV-20 to the RV-26.
http://www.richardcarter.net/repower/Vdrive.html
Based on his discussion about propeller selection, I got the impression you can order any gear ratio you want from Walter.
Paul
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Alan,
I just replaced my 20 with a 26, and Paul is correct there was no change in
the ratio. The yard did re-pitch my Maxprop because they believe it was
pitched too high. The one gotcha was the jack shaft. The 26 requires a
jack shaft that is 7/8″ shorter than that of the 20. For me that meant a
new jack shaft. I think Rich did the v-drive at the same time he re-powered
and positioned his new engine such that he could re-use the 20 jack shaft.
Walter thinks very highly of their jack shafts. I think mine coast $1,700.On Sun, Aug 15, 2010 at 10:29 AM, Paul Lefebvre
<>wrote:Hi Alan:
I am sure Rich will comment, but here is the link to his discussion about
going from the RV-20 to the RV-26.http://www.richardcarter.net/repower/Vdrive.html
Based on his discussion about propeller selection, I got the impression you
can order any gear ratio you want from Walter.Paul
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Regards,
John Stevenson
http://www.svsarah.com
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The jackshaft is variable length for just that reason – the two bolts on the
clamp are for moving the solid portion into the hollow one. If you needed a
longer one, that could be a problem, but a machine shop could make a new
insert, I’m sure for a couple hundred.Bob
On Sun, Aug 15, 2010 at 10:43 AM, John Stevenson
<>wrote:Alan,
I just replaced my 20 with a 26, and Paul is correct there was no change in
the ratio. The yard did re-pitch my Maxprop because they believe it was
pitched too high. The one gotcha was the jack shaft. The 26 requires a
jack shaft that is 7/8″ shorter than that of the 20. For me that meant a
new jack shaft. I think Rich did the v-drive at the same time he
re-powered
and positioned his new engine such that he could re-use the 20 jack shaft.
Walter thinks very highly of their jack shafts. I think mine coast $1,700.On Sun, Aug 15, 2010 at 10:29 AM, Paul Lefebvre
<>wrote:Hi Alan:
I am sure Rich will comment, but here is the link to his discussion about
going from the RV-20 to the RV-26.http://www.richardcarter.net/repower/Vdrive.html
Based on his discussion about propeller selection, I got the impression
you
can order any gear ratio you want from Walter.
Paul
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Regards,
John Stevenson
http://www.svsarah.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Bob Fine
s/v Pelican
Pearson 424 Hull #8
http://thesailinglife.blogspot.com
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Bob,
Unfortunately to shorten the jack shaft the tube must be shortened not the
insert. I don’t remember the reason we didn’t modify the tube, but I
believe that was not practical or wouldn’t have saved enough to make it the
preferred approach. If I could have avoided purchasing a new shaft I
certainly would have done so, and the yard would have made more money
selling me machine shop services rather than a new shaft (I was on the
Bertram delivery and didn’t have the option of shopping the work out
myself).
Alan,
Good luck with your installation. No two Pearson’s are exactly alike (e.g.,
the W60 vrs the W58) so the old jack shaft may still work for you. For your
sake I hope the advice I got from my installer was incorrect and you can
modify the shaft if it does not fit.On Sun, Aug 15, 2010 at 11:28 AM, Robert Fine <> wrote:
The jackshaft is variable length for just that reason – the two bolts on
the
clamp are for moving the solid portion into the hollow one. If you needed
a
longer one, that could be a problem, but a machine shop could make a new
insert, I’m sure for a couple hundred.Bob
On Sun, Aug 15, 2010 at 10:43 AM, John Stevenson
<>wrote:Alan,
I just replaced my 20 with a 26, and Paul is correct there was no changein
the ratio. The yard did re-pitch my Maxprop because they believe it was
pitched too high. The one gotcha was the jack shaft. The 26 requires a
jack shaft that is 7/8″ shorter than that of the 20. For me that meant a
new jack shaft. I think Rich did the v-drive at the same time he
re-powered
and positioned his new engine such that he could re-use the 20 jackshaft.
Walter thinks very highly of their jack shafts. I think mine coast
$1,700.
On Sun, Aug 15, 2010 at 10:29 AM, Paul Lefebvre
<>wrote:Hi Alan:
I am sure Rich will comment, but here is the link to his discussion
about
going from the RV-20 to the RV-26.
http://www.richardcarter.net/repower/Vdrive.html
Based on his discussion about propeller selection, I got the impression
you
can order any gear ratio you want from Walter.
Paul
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Regards,
John Stevenson
http://www.svsarah.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Bob Fine
s/v Pelican
Pearson 424 Hull #8
http://thesailinglife.blogspot.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Regards,
John Stevenson
http://www.svsarah.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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Alan-
We replaced just the solid splined shaft. The problem was that the shaft was rusted and the oil seal would not work properly against the rough shaft. I don’t remember what we paid Walter, but apparently there was no real sticker shock. It was a bear to get the jack shaft apart, but we did it with a vice, sledge hammer and lots of PB Blaster.
We were only interested in duplicating the original length, so I can’t comment on how much adjustment is possible. Incidently, the U-joints at the transmission end were totally frozen.
Quent
Clairebuoyant, #132 -
Thanks for the info guys.
It’s raining here and I am trying to figure out what I am going to need when I get down to Virginia.
I got the esitmate for the damage done when we hauled UNABATED. So far it’s around 4200 +/- 15%. (not including posible new shaft or prop). That’s for the insurance company. Now I am trying to figure out how much I can do myself…… All of it, if the boat was here and not 1000 miles away!
alan
— On Sun, 8/15/10, John Stevenson <> wrote:<.. snip>
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Hi John,
Maybe my jackshaft isn’t like yours – it looks as if I could shorten it
around 6″ before I have a problem. If the clampy-thing doesn’t do what I
think it does, then of course, I’m wrong. I’m not sure how much I could
extend it, either. I have seen this arrangement in other machinery (like
farming machinery) where the tube is quite hollow and that extension moves
pretty far in either direction.Bob
On Sun, Aug 15, 2010 at 12:05 PM, John Stevenson
<>wrote:Bob,
Unfortunately to shorten the jack shaft the tube must be shortened not the
insert. I don’t remember the reason we didn’t modify the tube, but I
believe that was not practical or wouldn’t have saved enough to make it the
preferred approach. If I could have avoided purchasing a new shaft I
certainly would have done so, and the yard would have made more money
selling me machine shop services rather than a new shaft (I was on the
Bertram delivery and didn’t have the option of shopping the work out
myself).
Alan,
Good luck with your installation. No two Pearson’s are exactly alike
(e.g.,
the W60 vrs the W58) so the old jack shaft may still work for you. For
your
sake I hope the advice I got from my installer was incorrect and you can
modify the shaft if it does not fit.On Sun, Aug 15, 2010 at 11:28 AM, Robert Fine <> wrote:
The jackshaft is variable length for just that reason – the two bolts on
the
clamp are for moving the solid portion into the hollow one. If youneeded
a
longer one, that could be a problem, but a machine shop could make a new
insert, I’m sure for a couple hundred.Bob
On Sun, Aug 15, 2010 at 10:43 AM, John Stevenson
<>wrote:Alan,
I just replaced my 20 with a 26, and Paul is correct there was nochange
in
the ratio. The yard did re-pitch my Maxprop because they believe it
was
pitched too high. The one gotcha was the jack shaft. The 26 requires
a
jack shaft that is 7/8″ shorter than that of the 20. For me that meant
a
new jack shaft. I think Rich did the v-drive at the same time he
re-powered
and positioned his new engine such that he could re-use the 20 jackshaft.
Walter thinks very highly of their jack shafts. I think mine coast
$1,700.
On Sun, Aug 15, 2010 at 10:29 AM, Paul Lefebvre
<>wrote:Hi Alan:
I am sure Rich will comment, but here is the link to his discussion
about
going from the RV-20 to the RV-26.
http://www.richardcarter.net/repower/Vdrive.html
Based on his discussion about propeller selection, I got the
impression
you
can order any gear ratio you want from Walter.
Paul
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Regards,
John Stevenson
http://www.svsarah.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Bob Fine
s/v Pelican
Pearson 424 Hull #8
http://thesailinglife.blogspot.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Regards,
John Stevenson
http://www.svsarah.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
—
Bob Fine
s/v Pelican
Pearson 424 Hull #8
http://thesailinglife.blogspot.com
_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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Alan
The RV-20 had a 2:1 gear reduction. You can order the RV-26 any way you
want, including a 2:1 gear reduction.
http://www.richardcarter.net/repower/Vdrive.html
RichQuote:
Original Message
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