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Gleniffer DC3R with reduction gearbox

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richardhula
New member
Username: richardhula

Post Number: 3
Registered: 01-2013
Posted on Wednesday, November 20, 2013 - 06:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Just seen a matching pair of 1935 Gleniffer marine engines for sale here http://www.marinepowerservices.co.uk/engines/engines-in-stock-for-sale/77-1935-gleniffer-dc3r-x2

60hp @ 900 rpm both with air starter motors. Includes original 2:1 reduction gearbox's. These were apparently an expensive development of the robust Kelvin gearbox.

Has to be a bargain at 4000 for the two although they may need overhaul.



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robert
Senior Member
Username: robert

Post Number: 629
Registered: 07-2003
Posted on Wednesday, November 20, 2013 - 10:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Sea water cooled?
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richardhula
Member
Username: richardhula

Post Number: 4
Registered: 01-2013
Posted on Wednesday, November 20, 2013 - 11:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Difficult to say Robert although it was a popular option when they were built since simplicity and reliability often went hand in hand. MPS would probably know since they rescued them from the scrap man.

Interesting feature are the horizontally opposed valves working each side of a clerestory combustion chamber, with a raised central part of the piston head below the central vertical injector, in turn promoting a squish effect so increasing power output.

Only two other manufacturer's, Russell Newbery and National with essentially the same engine offered this valve configuration, since it has its drawbacks.

Both valves can be removed without taking the heads off though. The exhaust valve being withdrawn through the larger diameter inlet port.
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colinh
New member
Username: colinh

Post Number: 2
Registered: 06-2008
Posted on Tuesday, December 31, 2013 - 06:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

We cool ours with raw water though its now river & canal water.

But as our DB2 (the smallest they made) was originally the engine from a lifeboat for big ships, so yes, they would have been seawater cooled.

We've recently had it apart, including liners out, and after 80 years, block corrosion doesn't seem to be too bad, though there was plenty of solid sludge at the bottom of the water jacket.

Here's a video of it running :- http://www.youtube.com/watch?v=TeKS8QxIGVw

Any leads on spare parts gratefully received.

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