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Author Topic: Engine loosing coolant  (Read 724 times)

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Stu Jackson

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Re: Engine loosing coolant
« Reply #45 on: April 06, 2021, 04:16:38 PM »



Stu what did you end up using?  I know originally JB, but wasn't there another repair material you considered? 
Did you use that?

-k

JBWeld didn't hold.

DEVCON did.  Wrote a Mainsheet Tech Note about it last year.
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Stu Jackson, C34 IA Secretary, #224 1986, "Aquavite"  Cowichan Bay, BC  Maple Bay Marina  SR/FK, M25, Rocna 10 (22#) (NZ model)

"There is no problem so great that it can't be solved."

KWKloeber

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Re: Engine loosing coolant
« Reply #46 on: April 06, 2021, 09:58:51 PM »


Engine


[EDIT] P.S.: The clamp size files are believed to be correct, but not guaranteed. :shock:

Hey Glenn

Here's the sizes on the M25, M25-XP, M-35
(I don't know what other hoses are on the C34 boat)

    Seawater pump inlet/outlet - 5/8" ID
    Hx inlet from seawater pump - 5/8" ID
    Thermostat to exhaust manifold - 7/8" ID
    Exhaust Manifold to Hx - 7/8" ID
    Hx to elbow - 7/8" OD
    Elbow to coolant pump - 1" ID
    Fuel - usually 3/8" ID, 1/4" ID return
    Thermostat/pump to water heater hoses - 3/8" ID

If you add like 1/8" to small hose ID and 1/4" to large hose ID, that's pretty close to the hose OD.
Or use the att'd Shields PDF catalog that gives you the precise OD of each hose.

You can use the attached PDF cheat sheet (a work in progress) -- it shows the range of each SAE clamp #. 
Here's the Excel of the cheat sheet:
https://c34.org/wiki/images/e/ea/%60kwk_SAE_clamp_size_chart.xls
See both pages in the files - 2nd page has AWAB clamps.

It's based on hose OD currently, I am adding in the actual ID of hoses (column B) as I get time. 
It's a bit confusing (don't let it SCARE you) until you get the hang of it -- the first columns show the clamp and size range / or look across the top for your hose ID then down to see which clamp(s) will fit.


cheers,
-k
« Last Edit: April 06, 2021, 10:05:04 PM by KWKloeber »
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

glennd3

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Re: Engine loosing coolant
« Reply #47 on: April 07, 2021, 01:40:42 PM »

Thanks Ken, I ordered clamps from Ultimate garage.
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Glenn Davis
Knot Yet
1990 Catalina 34 Mk 1.5
Hull 1053
TR/WK
M25XP
Patapsco River
Chesapeake Bay Maryland
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