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Posted: 6/19/2020 5:35:02 PM EDT
[Last Edit: HELOBRAVO]
@KB7DX
So I met the Coast Guard the other day, 4 miles out of Gulfport. Nice guys. I really should have replaced my cooling hoses last year.... So... anyway...I have the numbers right off the hoses and cannot find a replacement set. I can only find one hose by part number searching everywhere. My engine model seems to have had 3 different configurations: This is the closest I can find for serial number OF274795 but they don't look exactly right. The hose part numbers for the one's I need are: 32-87108/WH037/32-817435/32-16021-1/32-87117-1 Any suggestions? In the pic below, the two pretty much straight pieces are a hose I cut inhalf.  Attached File |
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Posted: 6/19/2020 9:35:16 PM EDT
[Last Edit: KB7DX]
[#1]
I'll look tomorrow at work when I have access to Mercnet.
Is this engine stock? Does it have closed cooling added or exhaust manifolds replaced/swapped or aftermarket? @HELOBRAVO ETA - I looked at one of your prior posts and saw you have a Bravo2 drive. The parts diagram you were looking at were for an Alpha drive so the hoses will be different. Of course the hoses to the Volvo sea pump are going to be custom pieces. 
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Posted: 6/20/2020 10:39:10 AM EDT
[#2]
Quote HistoryOriginally Posted By KB7DX: I'll look tomorrow at work when I have access to Mercnet. Is this engine stock? Does it have closed cooling added Stock. Raw water. or exhaust manifolds replaced/swapped or aftermarket? Stock @HELOBRAVO ETA - I looked at one of your prior posts and saw you have a Bravo2 drive. The parts diagram you were looking at were for an Alpha drive so the hoses will be different. Correct. My engine serial number fell in that range, I couldn't find that range anywhere else. Of course the hoses to the Volvo sea pump are going to be custom pieces. I just pulled the hoses on the front of the engine. Appreciate the help. The local shop wasn't any help. They had new counter people and they were not very motivated. |
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Posted: 6/20/2020 3:36:49 PM EDT
[#3]
 Attached File#16 is just bulk hose. #21 is 32-16012 #18 is 32-160211 #19 is 32-871171 #25 is 32-861590a05 This is under design II cooling system for a Bravo setup. It's kind of difficult to find with serial number alone as it doesn't jive too well with the Mercruiser parts catalog. I didn't include the sea pump hoses as they are not the same as yours. |
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Posted: 6/21/2020 12:17:14 PM EDT
[#4]
@KB7DX You rock. Thanks!
Now I'll be able to get back out there and meet even more of our heroes in the search and rescue, law enforcement and recovery services! |
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Posted: 6/21/2020 9:29:11 PM EDT
[#5]
Does the diagram match your configuration? T-stat housing the same multi piece
unit? @HELOBRAVO |
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Posted: 6/21/2020 9:49:35 PM EDT
[#6]
Quote HistoryOriginally Posted By KB7DX: Does the diagram match your configuration? T-stat housing the same multi piece unit? @HELOBRAVO I believe so. I've been at work. If it's wrong, I'll return hoses. I'll update wen they come it. |
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Posted: 7/1/2020 5:26:29 PM EDT
[#7]
@KB7DX
#25 fits. #21 does not. Too big. That hose is a smaller diameter than # 25. #18 & 19 match up with the ones I removed. I also have a # 32-817435 that I cannot find a replacement for. Says no longer unavailable and I can't find new PN. |
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Posted: 7/1/2020 5:36:12 PM EDT
[#8]
@HELOBRAVO
Hmmm. I'm off today but will look more at work tomorrow. |
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Posted: 7/2/2020 9:41:14 PM EDT
[#9]
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Posted: 7/3/2020 10:15:39 AM EDT
[#10]
Quote HistoryOriginally Posted By KB7DX: The 32-817435 is discontinued with no replacement. c&m Marine Dist. shows 3 in stock. Thanks! |
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Posted: 7/12/2020 6:20:53 PM EDT
[#11]
@KB7DX
Damn hose cost me $80. One more to go...the oil cooler hose. I have it ordered. The thermostat to lower manifold hose has all the right bends. I am concerned about it touching the engine mount bolt. My son removed it, so I have no reference, but there seems to be no other way to run it.  Attached File |
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Posted: 7/12/2020 6:31:54 PM EDT
[#12]
Either a piece of large wire loom or a piece of hose split down the side and wrapped over the hose where it touches the mount stud will protect it.
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Posted: 7/12/2020 6:57:41 PM EDT
[#13]
Quote HistoryOriginally Posted By KB7DX: Either a piece of large wire loom or a piece of hose split down the side and wrapped over the hose where it touches the mount stud will protect it. Yep. Can't be how it came stock. there's just no other way to run it. Thanks. |
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Posted: 7/12/2020 9:24:04 PM EDT
[Last Edit: KB7DX]
[#14]
The hose isn't on backwards is it?
 ETA- The wires coming off the alternator should be in loom. You don't want any chafing on them especially since the orange one is the output and is hot as long as there's battery power to the starter. Is that hose long enough to run under the motor mount? |
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