[C38] Maxprop setting

Tue Jul 1 13:45:57 EDT 2014

On the tranny, there's a simple way to figure out the ratio. You turn the
shaft and see how many turns the output shaft turns. Mine was right on 2:1.
I called PYI previously, and my settings were way off from what they
recommend. Was either going to go up to 16 deg or take chance to 18. They
had recommended 20, I think. Will call them again and work on prop
tonight,then launch tomorrow. Had bottom soda blasted as well, thinking
that all I had to do was prime and paint. Alot of sanding and some blister
repair as the weeks go by. Just in time for the Bermuda highs.
Thanks

Mike

On Tue, Jul 1, 2014 at 8:42 AM, Max Soto <maxsoto at gmail.com> wrote:

> Hi Mike, no master what the tag on transmission says, it is 1.8:1 instead
> of 2:1. Since the pitch varies depending on blade number and prop diameter,
> you should Contact PYI. They'll give you the right pitch..
> I have installed the same prop on other boats and the setup that they
> advise is usually perfect.
>
> Regards,
> Max Soto
> +506-8312-1367
> Alajuela, Costa Rica
>
> On 01/07/2014, at 05:31, Michael Norcross <manorcross at gmail.com> wrote:
>
> A few years back I had an issue with getting the revs up on the 3 blade
> classic maxprop, which was associated with black smoke when I pushed it.
> After several tries I ended up going down on the pitch, to believe it or
> not,  14 degrees according to the Maxprop manual calculations. When the
> exhaust riser finally fell apart I had the thought that the exhaust was
> compromising the output of the motor. With a new riser, the motor runs
> cleaner, but the boat is slow. Since I have the boat out of the water, I
> was going to reset the prop. Does anyone have a Maxprop and what settings
> are you using? i have the original Universal 5424 and a 2:1 ratio in the
> transmission.
>
> Mike Norcross
> Escape 318
> Annapolis
>
> On Jun 30, 2014, at 3:49 PM, Max Soto wrote:
>
> I installed my Racor before the Facet fuel pump.
> This way the fuel pump will get cleaner diesel.
> It was installed the other way around, and it made no sense to me. Now I
> has it installed as per the Catalina 38 diagram, and have worked great for
> the last four years.
>
> Max Soto
> +506-8312-1367
> Alajuela, Costa Rica
>
> On 30/06/2014, at 11:14, Don Strong <drstrong at ucdavis.edu> wrote:
>
> Steve's set up, and indeed that of many of us, have a big beautiful Racor
> or two upstream from the fuel pump.
> If so, it is not likely that crud in the fuel is causing the fuel pump
> failure. As a point of information, 12 years of perfect reliability have
> come with the fuel pump on Discreet Charm (Yanmar 3GM).
> Don
>
> On 6/30/14 10:03 AM, Dick Kilroy wrote:
>
> Steve: The pump with the motor is a Facit(spelling) and do have a screw
> off filter in the bottom. You can replace it or clean it. Original is
> stainless I think, replacements are paper like'
>
> Dick
>
> ----- Original Message -----
> *From:* Steve Smolinske <SSmolinske at rainierrubber.com>
> *To:* Catalina 38 Listserve <listserve at catalina38.org>
> *Sent:* Sunday, June 29, 2014 12:40 AM
> *Subject:* Re: [C38] Redundant Fuel Pumps
>
>  The one I replaced was the universal it lasted probably four years,
> before that were two cheap off brands that the yard put in.    Didn’t know
> about the screen, do you twist the bottom of the pump off for access?
>
>
>
> *From:* Listserve [mailto:listserve-bounces at catalina38.org
> <listserve-bounces at catalina38.org>] *On Behalf Of *Max Soto
> *Sent:* Saturday, June 28, 2014 9:32 AM
> *To:* Catalina 38 Listserve
> *Subject:* Re: [C38] Redundant Fuel Pumps
>
>
>
> Two racors?? Tha'st a buce setup!!
>
>
>
> Those fuel pumps are supposed to be very reliable.  Have you been cleaning
> the screen filter that goes inside those pumps????
>
>
>
> Regards,
>
> Max Soto
>
> +506-8312-1367
>
> Alajuela, Costa Rica
>
>
> On 26/06/2014, at 22:03, "Steve Smolinske" <SSmolinske at rainierrubber.com>
> wrote:
>
> Here is a quick project I just finished before we head off cruising.  I
> have replaced 3 fuel pumps in the six years I’ve owned Peregrine (I have no
> idea why so many) this last time we just finished a 12 hour delivery from
> Victoria and the next day when I started the engine at the dock, the pump
> failed within 1 minute.  Not wanting it to happen while cruising or at an
> inopportune time the following project.   I installed a second fuel pump,
> two valves and a switch for current.  Now with the turning of those two
> valves and a toggle of the switch the second fuel pump takes over.   I’m
> having a plaque made up that shows the valve and switch positions and plan
> to mount it just above the fuel filters.  Pretty sweet.
>
>
>
> Steve
>
> #312 Peregrine
>
> Seattle
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>  <fuel pump 3.JPG>
>
>  <fuel pump 2.JPG>
>
>  _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
> ------------------------------
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
>
> _______________________________________________
> Listserve mailing listListserve at catalina38.orghttp://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
>
> --
> Donald R. Strong
> Professor,
> Department of Evolution and Ecology
> and
> The Bodega Marine Laboratory,
> University of California, Davis,
> Davis CA
> 95616530 752 7886
>
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://catalina38.org/pipermail/listserve_catalina38.org/attachments/20140701/71bd2d75/attachment-0001.htm>