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Seeking right old engine

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david_reid
New member
Username: david_reid

Post Number: 2
Registered: 03-2011
Posted on Sunday, March 13, 2011 - 08:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hi to all. I am new to this forum. I have a lovely old Troller Cruiser that was built in 1934. She is 40'LOA, just under 12' beam, 5'draft and displaces about 28,000# She is currently out of the water and patiently awaiting repairs. She currently has a Perkins 6-354 engine. It is a normally aspirated engine with fairly low hours and will be available if anyone is interested. My wife and I lived aboard and cruised her in the Pacific Northwest for a time and love the boat, but I really didn't like the engine and didn't feel that it was a good match for the boat. The Perkins has way more power than we need and such, I was never loading it properly This old boat is easily driven shouldn't need more than 50 HP at the most. I want something that is old and appropriate for the boat and slower turning. I am curious about a Gardner 3LW but open to suggestions. I would greatly appreciate any insights that folks can share.
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tom_montagu
Member
Username: tom_montagu

Post Number: 9
Registered: 12-2011
Posted on Friday, December 30, 2011 - 10:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

David; try a K3 Kelvin--12 litres, 66hp at 650 rpm, petrol start (although a number of these engines in the UK have been converted to 'hot-diesel' start in UK canal narrow-boats)--lovely slow running engines with a lovely 'syncopated' beat. A K2, at 44hp might just be up to the job. Alternatively, look at the KELVIN 'J' range--11hp per cylinder at 1000rpm (J3-33hp/J4-44hp). These are fairly tall engines (particularly the 'K' series) but look and sound fantastic with individual cylinders and lots of brass. Look at KELVIN websites or www.the oilengine.co.uk--hope this helps you with your search
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david_reid
New member
Username: david_reid

Post Number: 3
Registered: 03-2011
Posted on Friday, December 30, 2011 - 12:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thank you Tom, I'll look in to them. I don't know anything about the Kelvins. If you have any links or information that you can point me towards I would be thankful.
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david_reid
Member
Username: david_reid

Post Number: 4
Registered: 03-2011
Posted on Friday, December 30, 2011 - 12:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I just did a Google search and the Kelvins are beautiful but look to be too tall to fit in my engine room. I have a 6-354 Perkins installed now and there is about three or four inches to spare. My boat is stored away from where I am living now but the next time I go to see her I'll take some measurements.
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tom_montagu
Member
Username: tom_montagu

Post Number: 11
Registered: 12-2011
Posted on Friday, December 30, 2011 - 03:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

David:_ if you look on the web-site of a guy called Mike Skyner you will find all the installation information you want. Mike and I are good mates and he had a beautifully restored J4 Kelvin in his canal narrow-boat (I have a J2 petrol-start Kelvin in my narrow-boat)--look on
www.sky-net.org.uk and then go onto the KELVIN page. The J3 (270cu.in. and 33hp) is possibly the smoothest running and sounds just like a train (quietly)going over railway lines when idling. with a 6in. stroke these engines have plenty of grunt-don't be fooled by the low bhp. I noted that there was a guy in Newfoundland had a J4 possibly for sale--go to DIESEL INBOARDS-then onto SCOTTISH-KALVEN 2 CYLINDER and then go to pictures and my comments at the bottom of the page--the engine looks very restorable--all the best with the project
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david_reid
Member
Username: david_reid

Post Number: 5
Registered: 03-2011
Posted on Friday, December 30, 2011 - 07:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Tom, I am most encouraged by what I'm seeing. Naturally I have lots of questions but a slow-turning old engine like this is what appeals to me the most. How big of a a propeller do I need? My boat has about a 36' waterline and likes to cruise around 7.5 knots.
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tom_montagu
Member
Username: tom_montagu

Post Number: 12
Registered: 12-2011
Posted on Saturday, December 31, 2011 - 12:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

David:- I have done some homework for you regarding propellor sizes and spent some time perusing my copy of 'Skenes Elements of Yacht Design'-(by Francis S Kinney--might be available in your local library)-according to their graphs for propellor sizes it would seem that for a 'J3' (33hp at 1000rpm)22-1/2in diam and 15in pitch--for a 'J4' (44hp at 1000rpm)24in diam and 15in pitch. I have calculated these prop sizes for 8knots at 800rpm. However, your Perkins will probably have a reduction gearbox (2-1 or 3-1) whilst the Kelvin has DIRECT drive, so there is a fair chance that the Perkins propellor will suit the Kelvin. I would suggest therefore, that IF you fit a Kelvin (or any old engine) you try the present prop before you lash out on a (probably expensive)new prop. IF you buy a 'J' Kelvin, I would suggest that you contact Kevin Whittle on www.whittlebooks.com (he runs the Kelvin Register) as he has produced quite a good loose-leaf book on overhauling the 'J' type; but I am always at the end of a phone/printer--look on your personal E-mail site. All the best for the project, whichever way you go and all the best for 2012.
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david_reid
Member
Username: david_reid

Post Number: 8
Registered: 03-2011
Posted on Saturday, December 31, 2011 - 05:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thank you Tom. As it turns out, my propeller was stolen from a boatyard in Everett, WA and I presently have no propeller. It's a shame because it was a 22"diameter with a 14" pitch if I recall correctly.
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jimdereynier
Advanced Member
Username: jimdereynier

Post Number: 48
Registered: 08-2007
Posted on Saturday, December 31, 2011 - 07:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Stolen Prop:
Tuff luck. Suggest you talk to Pat's Marine Diesel in Seattle 206-285-0184- He might be able to tell you where to look- I bought a 1975 Sabb 2H from him and had it ship to CT.
Also check Minney's Marine Surplus. (949) 548-4192- Costa Messa ,CA The size of Minney's is mind blowing.
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trials
Member
Username: trials

Post Number: 13
Registered: 12-2011


Posted on Saturday, December 31, 2011 - 07:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Check out my posting in the propellers section:
http://www.oldmarineengine.com/discus/messages/3441/254172.html

Is that even close
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johnoxley
Advanced Member
Username: johnoxley

Post Number: 47
Registered: 04-2010
Posted on Saturday, December 31, 2011 - 08:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The Kelvins are lovely old engines, but usually salt water cooled with rust wedging. We did a J2 with new barrels and heads out of India - we made the patterns and cast new manifolds and muffler. Try a Gardner 4LW with a Twin Disc or PRM box - still easily obtained and usually fresh water cooled. Parts are expensive but still available. Lots of information out there on them plus good Youtube clips.
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david_reid
Member
Username: david_reid

Post Number: 13
Registered: 03-2011
Posted on Monday, January 23, 2012 - 07:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I measured my engine room and I can only accommodate and engine of 48 to 50 inches long without making serious changes to the boat. I am corresponding with Kevin Whittle about the possibility of a J2 Kelvin. The J4 would be entirely too long for my boat and I suspect more power than I need.
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christopher
New member
Username: christopher

Post Number: 1
Registered: 07-2013
Posted on Friday, July 05, 2013 - 06:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have a fully restored Kelvin J4 for sale if you are interested.

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