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Palmer Pw-27

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john greenup
Visitor
Posted on Friday, September 09, 2005 - 10:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Need a head gasket and an oversized piston and rings for a PW-27. Does anyone know a place to find of have these made?
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richardday
Senior Member
Username: richardday

Post Number: 455
Registered: 11-2003


Posted on Friday, September 09, 2005 - 05:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

For rings go to Dave Reed at otto@dol.net For a compressable copper head gasket that will probably have to be made. Try 1.
F.H. Gaskins Co., Inc. This company makes copper head gaskets.
25th & Church St.
Norfolk, VA.
Tel 757-622-4706
Fax 757-623-2317

Or
F.H. Gaskins Co., Inc.
4 Nashua Ct. Unit 3
Baltimore, MD.
Tel. 410-686-1800
Fax 410-686-5184
for an oversized piston. The PW-27 standard piston is Wiconsin model AFH so try any Wisconsin dealer. Don't talk PW-27 talk Wisconsin model AFH.
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johngreenup
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Posted on Thursday, September 29, 2005 - 09:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Richard,

Help...

I will also post this question to your EMail address.

I took your advice and got an oversized Wisconsin AFH Piston for my PW-27 per the note in your book and prior Email. The AFH manual calls out piston DB-160-D and DR-7 rings. The only thing correct about the piston is the diameter. The wrist pin size, deck height and skirt length are wrong. I.e. totally unusable.

Normally Wisconsin parts have the part number stamped on them. I checked inside the piston in my PW-27 and there is no part number. Is it possible that the piston is not from a AFH but a custom part by Palmer or else another Wisconsin part.

The AFH went out of production before the PW-27 went into production. The AFH was not replaced. There was a model S10 with the same bore that was in production about the same time as the PW-27.

Thoughts???

John
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johngreenup
Visitor
Posted on Thursday, September 29, 2005 - 09:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Richard,

The Palmer PW-27 con rod is a DA-49-A. This might help.

John
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richardday
Senior Member
Username: richardday

Post Number: 456
Registered: 11-2003


Posted on Saturday, October 01, 2005 - 08:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

John, I am working the problem and hope to have a answer within a couple of weeks. Raynal Bolling the CEO and Chief engineer of The Palmer Engine Co. told me they cut a deal to use the Wisconsin AEH block with the AFH piston to get more cu. inch displacement. I have not ever questioned Ray's guidance as he was a very thoughtful and knowledgeable man. I will open up a PW-27 in a couple of weeks and see what I find.
When you say the PW-27 con rod is a DA-49-A does that mean it is a Wisconsin number? If it was a Palmer forging I would expect to see Palmer's name with the number. Sorry about the confusion will try to figure out what the solution is. How oversize is you cylinder bore?
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johngreenup
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Posted on Saturday, October 01, 2005 - 09:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Richard, Thanks for the reply. The DA-49-A is the wisconsin part number for a AEH con rod. Wisconsin parts have the part number cast in. If you have a chance to take out a PW-27 piston and it is a real wisconsin part then it will have the part number on it.

I need to overbore the engine to .010 as the compression is low and I can't get the engine to idle and it is hard to start.

My problem is I have promised the launch to a friend to use as a committee boat for the Head of The Charles Regatta in three weeks and need a solution ASAP.

John
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richardday
Senior Member
Username: richardday

Post Number: 457
Registered: 11-2003


Posted on Saturday, October 01, 2005 - 06:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Have you checked the valve clearances? That is often the real problem. ex .008 cold, intake .006 cold.
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johngreenup
Visitor
Posted on Monday, October 03, 2005 - 10:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Dick, Looks like the piston may be a DB-210-1 from a TH, THD and TJD engines. Will confirm, John
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richardday
Senior Member
Username: richardday

Post Number: 459
Registered: 11-2003


Posted on Tuesday, October 04, 2005 - 09:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks John looking forward to what you may find.
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richardday
Senior Member
Username: richardday

Post Number: 471
Registered: 11-2003


Posted on Saturday, October 22, 2005 - 10:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have been given a used piston from a PW-27 On the inside rim at the skirt, not near the bore for the pin it says Wisconsin DB-210. I have a PW-27 con rod which is forged with the following. DA-49 ?. The ? means I cannot read what ever was there.
I should add it took me a long time to find the piston marking as I was looking at the markings near the pin. One of which clearly says Alcoa. the others really are impossible to read.
The con rod has Y4 inverted forged ahead of the DA-49. I wonder if that is the identity of the company that actually forged the con rod for Wisconsin.
Some years back I had a telephone converation with the Wisconsin company historian and much to my surprise he told me Wisconsin never did have their own foundry which explains the UF logo of Universal on Wisconsin castings.
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johngreenup
Visitor
Posted on Monday, December 19, 2005 - 11:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Finally got the PW-27 to idle correctly by rejetting the carb. I increased the size of the idle jet and now it starts and runs very nicely.
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patrick henry hague
New member
Username: patrickhenryhague

Post Number: 1
Registered: 07-2007
Posted on Monday, July 23, 2007 - 06:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I just acquired a 17' Cape Cod Dory it has a Palmer 27. It also only has 55 lbs compression and the crankcase had some rain water in it, water came in through the bilges, only went slightly above the oil fill tube. The mag doesn't spark I can get that fixed. The question is will it run with only 55 pounds of compression? And where can I find the neopreme impeller blades that I'll need?
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Shawn McCoy
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Posted on Sunday, January 25, 2009 - 09:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Richard,

My PW-27 is going to be used around Salt Water. I realize that Salt isnt the best thing for these engines bases on the articles I have read. Is it possible to design a system for a PW-27, where I wouldn;t have to use Salt Water for cooling.
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 709
Registered: 11-2003


Posted on Monday, January 26, 2009 - 09:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The Chesapeake Bay watermen for years made simple keel coolers out of 1/2" or 3/4" copper pipe. Run a length up one side of the keel rubbing strip make a U turn and bring it back to a thru hull. The idea being to pump jacket 50/50 anti freeze and fresh water for cooling the water jacket. Use a dry exhaust or if wet exhaustis needed add a sea water pump to cool the exhaust line aft of the engine. They would take a short lengthe of copper pipe about 1-1/2 to 3" diameter roughly 18" long braze a copper pipe cap to one end. Use a second pipe cap as a removable cap to fill the vertical pipe as an exspansion tank and reservour for filling the system. Bore a smal vent hole in this cap. The hot water from the engine block down the U tube along the rubbing strip and the cooled water back to the pump with the exspansion tank simply tied into the return line. Works great and a lot cheaper than the factory product. Just takes a little common sense. Don't worry about painting the U tube with anti fouling paint won't really have any significant effect on the cooling of the jacket water.
Best I can offer.
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Shawn McCoy
Visitor
Posted on Monday, January 26, 2009 - 11:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thats good to now. I looked up some formulas and figured i'd probably need a 10' piece of copper pipe 8 Hp X .30 sq ft per hp = 2.4 sq ft. Then I take that 2.4 and divide it by the per foot surface area of the pipe. I uses 1" dia. so .26 sq ft. Does that sound right? Do u have a diagram of a expansion tank? or even a diagram of the entire system?
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 710
Registered: 11-2003


Posted on Monday, January 26, 2009 - 03:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Sorry, No diagram. You can look at the heat exchanger for the Palmer P-60 under topics and it will show you a factory approach. The typical Chesapeake Bay waterman couldn't afford any high prices solutions. They are just good shade tree mechanics. Just use your imagination for the expansion tank it aint rocket science. Good luck Dick
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Bill Mills
Visitor
Posted on Thursday, October 07, 2010 - 11:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Question for Dick-I have a PW-27 which I have just acquired and have removed the head to clean cooling passages, valves, etc. The cylinder wall is slightly scored, so I'm looking at re-boring. Was there any satisfactory resolution to the oversize piston dilemma earlier in this thread? I'll need a piston to match the re-bored cylinder, and wonder if F.H. Gaskins Co. is still the source for one.
Any information will be greatly appreciated.
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 904
Registered: 11-2003


Posted on Friday, October 08, 2010 - 08:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I don't think F. H. Gaskins Co. will be of help they stopped making gaskets for small orders and didn't return answers years ago to my questions.
Gaskets to Go makes excellent PW-27 compreeible copper head gaskets. I would contact knowledgeble Wisconsin individuals. You are looking for an oversize piston and rings for the AFH repeat AFH cylinder bore. Best I can offer.
Good luck.
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William Mills
New member
Username: wmills

Post Number: 1
Registered: 10-2010
Posted on Saturday, October 09, 2010 - 09:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Dick- many thanks, I'll let you know how I make out.
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Jim Carwardine
New member
Username: jimcarwardine

Post Number: 1
Registered: 10-2010
Posted on Monday, November 29, 2010 - 01:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I need to know how to remove the gear that couples with a Paragon reversing gear at the end of the crankshaft of a PW27. Anybody know?
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Ernie
Senior Member
Username: ernie

Post Number: 1292
Registered: 01-2002


Posted on Monday, November 29, 2010 - 01:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Jim,
A lot of heat and a good 3 jaw puller
If you can, remove the small pilot bearing from the center of it as the heat will most likely ruin it.
How do you put it back on?
A lot of heat and a good lead hammer. Then after it has cooled install the pilot bearing
Hope this helps
Ernie
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Jim Carwardine
New member
Username: jimcarwardine

Post Number: 2
Registered: 10-2010
Posted on Monday, November 29, 2010 - 08:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks, Ernie. Is there a key on the shaft? I suspect there is... Jim
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Ernie
Senior Member
Username: ernie

Post Number: 1293
Registered: 01-2002


Posted on Tuesday, November 30, 2010 - 08:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Yes there is a key
The little bearing is available from any bearing house
Hope this helps
Ernie
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Jim Carwardine
New member
Username: jimcarwardine

Post Number: 3
Registered: 10-2010
Posted on Monday, December 27, 2010 - 10:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Ernie... I'm just getting around to pulling the drive gear off my PW-27 crank shaft and have run into a problem. The gear puller won't fit under the gear. Also, I have 2 old Palmer engines. The one has a pilot bearing as you described. The other does not. The one that doesn't have this bearing is the better motor. Any advice?
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Mary-Brigid
Visitor
Posted on Tuesday, September 17, 2013 - 11:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I've got an issue with my PW-27 - sending hot water up through the cockpit scuppers when i gas the engine. Any ideas as to a replacement exhaust manifold? I think mine is rusted from the inside out.
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 1079
Registered: 11-2003


Posted on Wednesday, September 18, 2013 - 10:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The PW-27 exhaust is typically cooled with water injected into the exhaust line down stream from the the engine itself. This means any number of exhaust plumbing styles are employed. I would suggest you think in terms of the water problem with the exhaust line rather than the PW-27 engine unless you are seeing water actually spurting from the engine water jacket. I would be looking for the leak in exhaust line rather than the engine as that should be a much cheaper and simpler matter to fix. Just a guess of course.

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