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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
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Diesel This is a forum dedicated to diesel engines and their applicable accessories.


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  #1  
Old 06-25-2014
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New to us CS36T and Westerbeke 30

After several months of searching (and initially aiming for a CS30), we're now the proud new owners of a CS36 on Georgian Bay. Lots of little and not so little projects to get done but overall solid condition at a reasonable price.

Given that we are fairly new to sailing, ensuring the engine is in good working order and up to date on maintenance is my first priority. So far we've taken her out for a 2.5 hour motor in calm weather and this is what we've noticed:

1)Easily cold started after using glow plug for 10-15s
1)Engine warms up to 180 as per panel gauge and stays there, even at full throttle.
2)Engine "spits" a steady stream of cooling water off transom with small amount of white smoke
3)Panel gauge indicates max RPM of 2100 at full throttle. Not sure how accurate gauge is, given gauge stays at 2100 despite audible decrease in engine rpm and boat speed when throttle is pulled back slightly.
4) As per speed log, 7.4kn at 2100, 7kn at 2100, 6kn 1900, 5kn at 1500

Not too sure about the rpms (manual states should do 2500) and the white smoke. Possibly overpropped (12X8 LH folding prop)? Anything else I should look into?

My initial plan is to do the following:
1) Change oil and filter: FRAM PH8A, generic 10/30 or Shell Rotella 10/45
2) Drain/Fill freshwater coolant: 50/50 green prestone/water
3) Drain/Fill Tranny oil: Dex III (manual specs obsolete type "A")
4) Replace raw water impeller (I'm assuming WMarine will be able to spec this part)
5) Clean raw water strainer
6) replace primary/secondary diesel filters (2x NAPA 3166 filters, one on engine compartment wall, one on engine)

Anything else I should get done asap? Any thoughts on the white smoke/decreased max rpm? For any other Canuck owners of W30 engines, any good canadian retailers for parts (impellers etc..)?

Thanks for all the help and I apologize for all the newb questions. Everything about sailing, boats, diesel engines is all new to us.
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

Quote:
Originally Posted by novic View Post
..
My initial plan is to do the following:
1) Change oil and filter: FRAM PH8A, generic 10/30 or Shell Rotella 10/45
2) Drain/Fill freshwater coolant: 50/50 green prestone/water
3) Drain/Fill Tranny oil: Dex III (manual specs obsolete type "A")
4) Replace raw water impeller (I'm assuming WMarine will be able to spec this part)
5) Clean raw water strainer
6) replace primary/secondary diesel filters (2x NAPA 3166 filters, one on engine compartment wall, one on engine)
...
You need to find the regions Westerbeke dealer and send him your credit card account. You are pound-foolish to put anything other than Westerbeke parts into that engine, especially the filter and the impeller. And absolutely use a marine oil that meets all the Westerbeke-specified criteria.

Be sure to replace the coolant with the same type of coolant, again check the owners manual for specified criteria.

Add replacing the engine zinc to your list and consider back-flushing the cooling system to get the old zinc material out of the heat exchanger.
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

... and more important, update your profile so you don't show up as a default USA-ian!
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

Check the pencil zinc in the heat exchanger! I had a piece of the zinc block the elbow for to out flow at a less than convenient time.
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Last edited by jimrafford; 06-25-2014 at 07:03 PM.
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

westies are notorious for failed glow coil fuses, relays and wiring. The heat exchangers clog easy also from the many discussions I've read on them..
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

I suspect your tach is not working correctly. With a 12x8 prop you should actually be under, not over propped. One source recommends something like a 13x10 or 14x11 for that engine depending on the gear reduction. Start by getting the tach calibrated.
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

Quote:
Originally Posted by sailingfool View Post
You are pound-foolish to put anything other than Westerbeke parts into that engine, especially the filter and the impeller
Take the impeller to a good marine dealer - not a Westerbeke parts house. It is very likely a Jabsco which should be a third of the $165 Westerbeke lists it for.
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Old 06-25-2014
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Re: New to us CS36T and Westerbeke 30

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Originally Posted by sailingfool View Post
Add replacing the engine zinc to your list and consider back-flushing the cooling system to get the old zinc material out of the heat exchanger.
The OP is in fresh water. Zinc anodes don't work, they must be magnesium.
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Re: New to us CS36T and Westerbeke 30

Thanks everyone for the information. Profile info updated

Will definitely add checking the heat exchanger and anode to the to do list.
Mitipiempo: thanks for the impeller tip!
boatpoker: do you know where I could source a magnesium pencil anode ?

How much smoke should a marine diesel produce? Is the small amount of white smoke I'm noticing something to be concerned with, or within normal operating limits? The smoke dissipates within 1-2 feet behind the boat.

One additional oddity about this engine is the fuel filtration setup. There appears to be two CAV type filters hooked up in series, one on the engine, one mounted to the engine bay wall, both have identical filter elements installed. The Westerbeke service manual seems to suggest the primary filter should be a sedimenter/see through type filter which is nowhere to be found on this boat. Should I go ahead and delete the primary CAV filter on the wall and replace with a Racor type filter or simply leave well enough alone and replace both filter elements.
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Old 06-26-2014
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Re: New to us CS36T and Westerbeke 30

Quote:
Originally Posted by novic View Post

Not too sure about the rpms (manual states should do 2500) and the white smoke. Possibly overpropped (12X8 LH folding prop)? Anything else I should look into?
No way you are over propped if those prop numbers are accurate. Factory supplied Martec Folder was 18" x 12" x 1", Gori was 16.5" x 11" x 1" fixed two blade was 16" x 13" x 1"... Check the prop size and tach calibration...
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