Author Topic: Another Westerbeke project  (Read 266 times)

32 coupe

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Another Westerbeke project
« on: March 22, 2020, 05:52:19 PM »

Picked up this Westerbeke 4.4 with a bad gen end. The little Mitsubishi engine only has about 60 hrs on it.
After removing the marine parts, adding the alternator, frame and the Honda radiator I bought a clone 6.5 generator head, built the frame and am in the completion phase.
 
Notice the brace between the engine and gen end. The mounting frame on the head is somewhat flimsy and I chewed up a couple of spiders before I figured that problem out. After adding the brace she runs perfect.

It's a fun little project. It will pull about 4.2 kw so it is not a large set by any means but should be pretty economical to run if needed.

Enjoy,
Gary

Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

32 coupe

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Re: Another Westerbeke project
« Reply #1 on: March 22, 2020, 06:05:37 PM »
Another pic.

Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"

mikenash

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Re: Another Westerbeke project
« Reply #2 on: March 23, 2020, 06:44:05 AM »
Hey Gary, when you say "spiders" - do you mean the rubber insert for the drive coupling?  Maybe as the torque/load happens the two units move relative to each other or something like that?

I'm interested in your thinking - my approach would have been to build a more rigid base, maybe.  Or is it the feet part of the head that is flimsy?

Just being nosey.

Nice-looking unit :)

glort

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Re: Another Westerbeke project
« Reply #3 on: March 23, 2020, 10:24:13 AM »

The coupling is a lovejoy and they have a flexible piece in the middle of the 2 jaws on the driving and driven side. There are 3 materias available but the standarg one is very robust IF the jaws are reaonably aligned.

Obviously movement between the units should be eliminated as well.

I think the bracing is a brilliant idea. Adds the required ridgity simply,  easily and without much added weight.
The whole setup looks neat and brilliant.

32 coupe

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Re: Another Westerbeke project
« Reply #4 on: March 23, 2020, 11:31:05 AM »
Yes, Glort answered the spider question.
The frame is 4" "C" channel with welded "3" cross mounts for
the head and engine. I am sure it is strong enough.
The gen head mount is a 3/16 bent metal piece. Without the brace I
could move the head a bit with my hand on the input shaft.
The threaded rod brace eliminates the "wobble".

Gary

Metro 6/1 turning a ST 7.5 KW gen head
Changfa 1115 turning a ST 15 KW gen head
Ashwamegh 2/25
John Deere 110 TBL
New Holland TC 30

"I was sitting here reading this thinking what an idiot you are until I realized it was one of my earlier posts !"