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Showing results 1 to 25 of 163
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Posts Made By:
doog
Forum:
Engines and Propulsion Systems
15-09-2023, 10:02
Replies:
7
Perkins 4-108 damper plate and starter issues
Views:
1,717
Posted By
doog
Re: Perkins 4-108 damper plate and starter issues
Happy to help!
I replaced my Delco-remy with one of those gear driven imported starters, as shared, then found the spacing critical and got the correct shim part from TAD. Not sure what your...
Forum:
Propellers & Drive Systems
11-09-2023, 16:47
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
Okay I found a really good prop calculator program and feel that with 18-18 Im currently over propped and that's fine. I like low rpm, efficient operation and am also over powered so no need for a...
Forum:
Propellers & Drive Systems
09-09-2023, 11:43
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
Thanks FPNC!
and yes, I love the deep gear ratio and aspire to efficiency.
I dont have room for 20" but perhaps 19..
Ive never accelerated till the engine would no longer increase speed which...
Forum:
Propellers & Drive Systems
05-09-2023, 11:23
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
Indeed the slower the prop turns and the larger the diameter, the more efficient. And Im finding many installations are limited to diameter.. 12 to 16 inches. Then with a pitch of ten or twelve they...
Forum:
Propellers & Drive Systems
05-09-2023, 07:15
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
Wow NY, could you share what your gear ratio is and the engine you have. And also your gear ratio. Amazing claim but you leave out the important details.
And you must have a very well designed and...
Forum:
Propellers & Drive Systems
04-09-2023, 21:35
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
"4108 in the 20,000 # displacement Gulfstar 37 is deliberately overpropped (3 blade 15 diameter x 12 pitch)" Previous thread info.
So from this discussion, I'd say my 18-18 is way overpropped! Ive...
Forum:
Propellers & Drive Systems
04-09-2023, 21:00
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
Yep, Thanks, Maybe over propped but its working for me. Although I would like to know what similar boats are using, Valiant, Hans or Westsail.
Im out now and just wanted to look into it.
PS....
Forum:
Propellers & Drive Systems
04-09-2023, 09:50
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
Re: prop selection for heavy 37 foot sail
https://www.rbbi.com/folders/prop/propcalc.htm
This calculator tells me an 18/18 prop is just right so maybe the 16 pitch is too steep.
Glad I ran this calculator.
Forum:
Propellers & Drive Systems
03-09-2023, 21:46
Replies:
16
prop selection for heavy 37 foot sail
Views:
1,618
Posted By
doog
prop selection for heavy 37 foot sail
Ive seen boats with similar design and engines with much smaller and steeper props. I have an 18 by 18 inch three blade and perkins 4.108 power with 2.8 to one hurth gear. 37 foot boat at 23K lbs....
Forum:
Electrical: Batteries, Generators & Solar
13-08-2023, 17:47
Replies:
5
Electrical mystery
Views:
503
Posted By
doog
Electrical mystery
Okay I have two lithium 125 AH in parallel, wired to the inverter/charger DC studs. Works fine. The batteries are charge both by MPPT solar controller and 400 watts of panels and at times by a 3000...
Forum:
Monohull Sailboats
17-04-2023, 15:11
Replies:
17
Finding Permanent Moorage in the PNW and What to do While you Wait.
Views:
2,354
Posted By
doog
Re: Finding Permanent Moorage in the PNW and What to do While you Wait.
Im in the same 'boat' after accepting a $5K move-out payment to leave my marina to accomodate rate increases exceeding the legal limits. And I saw that Roche harbor was advertising about $5 per foot....
Forum:
Engines and Propulsion Systems
17-02-2023, 14:45
Replies:
2
Perkins lucas cav dpa fuel pump part numbers
Views:
681
Posted By
doog
Re: Perkins lucas cav dpa fuel pump part numbers
Thanks skipperpete, very definitive. And this makes perfect sense. I agree TAD is a great source and right on in these issues. I sent them a message and waiting to hear...
Forum:
Our Community
17-02-2023, 10:41
Replies:
40
Cheaply buying a derelict boat in French-Polynesia?
Views:
7,094
Posted By
doog
Re: Cheaply buying a derelict boat in French-Polynesia?
I spent half my life building a 37 foot live-aboard boat with self sufficient systems and a good reliable engine counting on moorage to allow parking and work in the local area, wherever it may be....
Forum:
Engines and Propulsion Systems
17-02-2023, 09:34
Replies:
2
Perkins lucas cav dpa fuel pump part numbers
Views:
681
Posted By
doog
Perkins lucas cav dpa fuel pump part numbers
This is one for the real Perkins pros,
I find two new fuel pumps for sale on Ebay, very reasonable and NEW! These look identical to my fuel pump with all the same inlets and outlets, control...
Forum:
Engines and Propulsion Systems
10-02-2023, 18:39
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
Yes, Marcjsmith,
Always been good with duct tape and baling wire, and the quick fix. And at the same time I see the great value of 'doing it right' after having it all apart and then overlooking...
Forum:
Engines and Propulsion Systems
10-02-2023, 09:14
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
So I hate those threads that dont conclude with the conclusion but just leave off unclear, and I found in my work on the dripping control arm that if I applied firm pressure that the engine instantly...
Forum:
Engines and Propulsion Systems
08-02-2023, 17:51
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
Ive not used or seen Lucas stop leak but the red line product that was recently outlawed but now still available in UK and Australia, and worked wonderfully, is quite thin. Solvents, no solids. Nor...
Forum:
Engines and Propulsion Systems
08-02-2023, 14:56
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
the process is to introduce the sealer which is a softening agent, various solvents, nothing solid whatsoever. These work to restore the seals on transmissions which get hard and my old merz lost...
Forum:
Engines and Propulsion Systems
08-02-2023, 12:55
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
So after adding the One Seal by bars leaks the dripping reduced by about half, after sucking a cup of equal parts fuel/stop leak into the fuel system with the lift pump. After an overnight...
Forum:
Engines and Propulsion Systems
07-02-2023, 13:41
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
Im looking foward to doing this project and just had the head off and all the exhaust and HE parts but did not have the leak issue then, now after about 20 hrs its leaking and Im planning to do it...
Forum:
Engines and Propulsion Systems
07-02-2023, 13:28
Replies:
10
The hum of an engine
Views:
1,116
Posted By
doog
Re: The hum of an engine
Ive thought that from a physics and analysis viewpoint that a sound recording of an engine could concievably diagnose most any issue, if properly slowed down and each sound identified, like the tick...
Forum:
Engines and Propulsion Systems
07-02-2023, 09:42
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
Yes, Ive just stuffed an oil absorbent pad under the drip, but the real issue is the hard starting after the engine has been not running for ten hours or so and must build pressure again before it...
Forum:
Engines and Propulsion Systems
06-02-2023, 19:20
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
Thanks Donradcliffe,
Yes that third nut in my case, you had cap screws? Ive recently had the exhaust/heat exchanger off and I can get it. But its not a project I relish right now. I need the boat...
Forum:
Engines and Propulsion Systems
05-02-2023, 18:37
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Re: Lucas fuel pump leak from fuel control arm, Cures?
Good to know SailingHarmonie. Thanks. And you know I used Standodyne fuel treatment when rejuvenating this engine, in a high concentration, and wondered if perhaps that caused the seals to wear,...
Forum:
Engines and Propulsion Systems
05-02-2023, 14:55
Replies:
18
Lucas fuel pump leak from fuel control arm, Cures?
Views:
2,085
Posted By
doog
Lucas fuel pump leak from fuel control arm, Cures?
So recently running my engine frequently to charge batteries, Ive discovered a drip, drip fuel leak from the arm of the speed control arm about one drop in eight to ten seconds, and it seems to...
Showing results 1 to 25 of 163
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