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Post by Harris on Jan 31, 2004 9:22:29 GMT -5
Working on a new Web Page concerning repowering for a P35. I know very little about the subject. I've asked Joe Demers to help me out on this.
If you have repowered you P35, I want to hear from you. Need some pictures and "lessons learned," info.
Found some info on the net. Stay tunned.
Harris
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Post by Warren on Feb 8, 2004 11:19:42 GMT -5
My 1978 P35 currently is powered with a 30w Westerbeke.The engine has about 2500 hours on it and is leaking oil from the rear seal and is running hot.
My diesel mechanic has advised me not to put any more money into the engine.
My boat yard recomended replacing the engine with a Westerbeke 35D in place of a Yanmar 3gm due to even more engine bed work for the Yanmar. I received an estimate for a complete repowering of $17,000
$9,760 for engine and parts $7,236 for labor + or- 10% .
How far out of line would you say the estimate is and do you have any advice on the engine
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Post by windance on Feb 11, 2004 19:45:11 GMT -5
Look at a Beta diesel there are a couple in the 28 to 32 hp range that might be a good candidate for drop in with minimal rework. they are based on the kubota engine which has a lot of support across the country. please note that the Beta has mounts that match the old Atomic 4 and is dimensionally close.
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Post by Roscoe on Mar 15, 2004 6:47:28 GMT -5
If I was to repower Beta marine would be my choice.
I base this on ,price, parts availability , and quality of unit.Another consideration would be weight.
Good luck. I would be interested in the old 30.Roscoe
wiroto@prodigy.net
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Dale
New Member
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Post by Dale on Jul 30, 2004 23:40:21 GMT -5
My Pearson 35 Hull Number is 276 and it was built in 1975. I am planning to repower prior to next sailing season and am trying to determine if the engine bed is the same as other 35's. The original/current engine is a two cylinder Farymann R30 (25 HP) diesel. I have seen little mention of this engine associated with Pearson 35's and assume it was installed as original equipment for only a short time. Is it likely the standard engine bed was changed to accommodate the Farymann and may need special modifications to accept a Beta, Yanmar, etc?
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Deleted
Deleted Member
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Post by Deleted on Aug 2, 2004 0:51:04 GMT -5
My 1975 P35 had just been repowered when I bought it about 4 years ago. It had an Atomic-4. The replacement engine is a Universal M-25XPB . I don't have any cost info to share but if I were doing it I think I would have chosen something with a little more HP. This model is 26HP at 3000 rpm. Westerbeke recommends a propeller that will allow the engine to turn at 3000 rpm at FULL throttle. The previous owner kept the shaft at 7/8 inch with what looks to be the original prop. Full throttle will give me a little more that 3000rpm so I can possibly push the boat faster if I update my prop. Right now it works hard to get to 5 kts. But I can't really complain, new engine and a good price. see www.westerbeke.com |
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Post by Warren on Aug 8, 2004 20:22:22 GMT -5
My 1978 P35 was repowered this Spring. The Yard replaced the original Westerbeke W30 with a new 35D.
While the new engine is about 10 inches shorter and two hundred pounds lighter there was no modifications in the engine bed required,just rear mounts to be fabricated.
We now cruise at about six and one half knots with a 14x14 sailor prop.
,
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Post by Windance on Oct 31, 2004 18:48:44 GMT -5
A follow up to my previous post. I have gone ahead and committed to a repower this winter. after a lot of discussion and research I have allowed myself to be convinced that a Beta 28 hp engine is an acceptable choice as a replacement for the Atomic 4. Both the Beta importer and Joe Demers, the local distributor have recommended the 28 as the appropriate engine. I ordered the engine with a 2.5:1 reduction. I have compared several recommendations, including Michigan Wheel, for prop size and have pretty much settled on a 16 x 11 3 blade sailor prop. I will be doing the installation myself so will have many sea stories to tell between now and next May stay tuned
Jack
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Post by roscoe1 on Jun 19, 2005 11:03:42 GMT -5
Jack
I am doing the same except I'm going from westerbeke to beta All mounts had to be modified.
It's amazing how much room I've gained under the sink area.You probably won't notice any increase..
wiroto@prodigy.net
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hoop
New Member
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Post by hoop on Jun 21, 2005 7:38:07 GMT -5
My 1971 P35 hull #187 was repowered about 4 years ago with Beta 28. This was before I purchased her so no real details to send along. The motor has about 650 hours and runs smooth and strong. Pushes the boat along at about 6 knots.
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Jack Armstrong windance
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Post by Jack Armstrong windance on Jun 27, 2005 17:55:54 GMT -5
Repower is complete! Beta 28 with a 2.5:1 reduction gear swinging a 16x11 full blade prop. New shaft, cutlass bearing and Lasdrop stuffing box. Used existing A4 beds elevated 2" with oak stringers. The only thing left from original is the 30 gal Monel fuel tank. Stats: cruise speed 6.2 kts at 2100 rpm. Peak at 3200 rpm. at peak boat exceeds 7 kts. I have concluded that I am over pitched by about 1". Will live with it for the summer and repitch after haul out. I would reconsider using the A4 spacing if I were to do it again the 14" centers provide additional clearance for the beds. I did the complete job alone and have numerous tidbits of advice. Email me at windance_98@yahoo.com for additional info.
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Post by Bill Muir on Mar 8, 2006 9:10:31 GMT -5
My 1978 P35 currently is powered with a 30w Westerbeke.The engine has about 2500 hours on it and is leaking oil from the rear seal and is running hot. My diesel mechanic has advised me not to put any more money into the engine. My boat yard recomended replacing the engine with a Westerbeke 35D in place of a Yanmar 3gm due to even more engine bed work for the Yanmar. I received an estimate for a complete repowering of $17,000 $9,760 for engine and parts $7,236 for labor + or- 10% . How far out of line would you say the estimate is and do you have any advice on the engine |
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Post by Bill Muir on Mar 8, 2006 9:18:23 GMT -5
Replacing my w30 with a yanmar m3. My w30 had over 10,000 hours and only quite when the oil filter failed and ran her out of oil. The cost to replace and install is around $11,000 complete. New Yanmar ($7300.00) new beds exhaust ect.. All labor. Your W30 is the best engine you can find, get the this fixed, clean the heat exchanger, ( I could sell you mine, and you should get 10,000 hours plus from this engine. E-mail me with questions. muir@comprop.net. My 1978 P35 currently is powered with a 30w Westerbeke.The engine has about 2500 hours on it and is leaking oil from the rear seal and is running hot. My diesel mechanic has advised me not to put any more money into the engine. My boat yard recomended replacing the engine with a Westerbeke 35D in place of a Yanmar 3gm due to even more engine bed work for the Yanmar. I received an estimate for a complete repowering of $17,000 $9,760 for engine and parts $7,236 for labor + or- 10% . How far out of line would you say the estimate is and do you have any advice on the engine |
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Post by hirover on Mar 14, 2006 22:18:16 GMT -5
My prospective boat has been repowered with 3 cylinder Yanmar. They used the stock engine beds but apparently they don't work all that well with the Yanmar. They installed the engine about a foot further forward than the old motor. This necessitated making a box that intrudes into the companionway to fit the ancillaries. The only reason I could figure out for why they did this is that the Yanmar sits higher than the previous engine (probably an A4). They had to move the engine forward to get the shaft angle to fit.
Eventually I'll redo the beds but wonder if anyone has run into this problem with the Yanmar. Want to move the engine back out of the living area.
Aloha
Peter O.
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Post by clayton on Jan 22, 2007 0:00:28 GMT -5
I am repowering my '68 P35 (H#27) this winter. I heard a bit of buzz about a diesel-electric setup a year or two ago but can find no "drop in" suppliers now. Any suggestions on where to look for design support? If I went with a standard installation I would want about 15 HP, so the same to drive the DC alt should be about right. A massive battery bank and a sealed DC motor for the prop will have to be spec'd and sourced. This would be a lot easier if someone has already put the package together. I hope to gain flexibility on the installation as there are no shaft alignment issues to complicate the changed mounts. Also, weight savings and increased efficiency (read range) should be there since the D/G is smaller and can always operate at it's best RPM. The biggest problem will be cost, since the other route is to install a used Beta. Any and all thoughts welcome. Clayton, s/v Sea Mist.
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