What hoses do I need?

the Ferret

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My bike is going in for general maintenance in a couple of weeks when it hits 100,000 miles. One of the things I was thinking about doing, was have them replace the water hoses. They are all of course 11 years old now. Looking them up online I find 9 hoses associated with the water pipe. Numbers 7, 8, 9,11,13,15,16,19 and 20

http://www.beechmontms.net/oempartfinder.htm#/Honda/ST1300A_(06)_ST1300,_JPN,_VIN#_JH2SC510-6M400001/WATER_PIPE/ST1300-06-JPN-A/2Y14MCS3E1AMCS4E2000AB

is it recommended to replace them all? or are their certain ones that should be ok and some that should be replaced? Or would it be wise to just go ahead and replace all of them? Anything else o-ring wise I should get in this diagram?
 

dduelin

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I think there are 12 or 13 including the radiator and coolant overflow hoses. I replaced mine at little more than 100,000 as preventive maintenance. Also consider replacing the O rings under the metal fittings on each cylinder head. For some reason I seem to remember I ordered 16 items for that job.
 
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the Ferret

the Ferret

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OK missed the radiator ones, now up to 13 with part numbers 14,15,24,25

http://www.beechmontms.net/oempartfinder.htm#/Honda/ST1300A_(06)_ST1300,_JPN,_VIN#_JH2SC510-6M400001/WATER_PIPE/ST1300-06-JPN-A/2Y14MCS3E1AMCS4E2000AB

not sure what orings under metal fittings on each cyl head you are talking about.

yep preventive maintenance. It's also getting all new wheel bearings and seals which are original as well, plus repack steering head bearings, new fork seals and flush everything.

it was either buy another bike or make sure this one will go some more. I love this bike so it's worth fixing up. Been a great bike so far.
 

dduelin

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I think they are labeled #24, part # 91331. At 100k they are smashed flat and are no longer pliable. Mine weren't seeping but since I had it all apart for an alternator.......
 
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the Ferret

the Ferret

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ok thanks I'll ask the mechanic what he thinks.
 
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For the next person looking at replacing hoses:

I'm in the process of replacing the hoses and water pump parts (not the impeller though) on my '07 ST13 (126K miles). I bought every coolant hose I could find, without knowing each hose's purpose. Two of the hoses go to the oil cooler at the back of the engine, just ahead of the oil filter. (I had no idea there was an oil cooler). Getting to the "bottom" ends of these hoses looks pretty difficult. Fortunately for me, those hoses seem fine, so I'm leaving them alone. I'm keeping the two new hoses though. As long as I have them on the shelf, I'm sure I'll never need them.

The hoses that go to the oil cooler are: 19512-MCS-000 and 19513-MCS-000
 
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The hoses that run to the oil cooler can be replaced pretty easy once the body work and radiator are removed. Its simply a matter of tying a small arbor line to one end and as you pull the old hose out it lays a path for the new one. Removed the line, replace it on the end of the new hose and pull it back through.
One thing most folks miss doing, and it causes them to do it twice, is to clean/wire brush the metal pipes on the T-stat housing or new hoses or not, you'll still get leaks from the corrosion. You also want to replace the large rubber o-ring (gasket) under the front water pump housing cover as well.
 

SupraSabre

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The hoses that run to the oil cooler can be replaced pretty easy once the body work and radiator are removed. Its simply a matter of tying a small arbor line to one end and as you pull the old hose out it lays a path for the new one. Removed the line, replace it on the end of the new hose and pull it back through.
....
Larry's way is probably the correct way...and then there is the "Bob's way"...

I removed the oil filter, then took out the bolt that holds the oil cooler to the block (takes a big socket). Dropped the oil cooler down where I could work on it. I duct taped the new hoses to the old ones and pulled them through from the top. Connected up the new hoses, re-connected the oil cooler to the block and then connected the hoses up top.
 

dduelin

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For the next person looking at replacing hoses:

I'm in the process of replacing the hoses and water pump parts (not the impeller though) on my '07 ST13 (126K miles). I bought every coolant hose I could find, without knowing each hose's purpose. Two of the hoses go to the oil cooler at the back of the engine, just ahead of the oil filter. (I had no idea there was an oil cooler). Getting to the "bottom" ends of these hoses looks pretty difficult. Fortunately for me, those hoses seem fine, so I'm leaving them alone. I'm keeping the two new hoses though. As long as I have them on the shelf, I'm sure I'll never need them.

The hoses that go to the oil cooler are: 19512-MCS-000 and 19513-MCS-000
When I replaced all the hoses those were the ones that were most difficult. They really did not want to come loose and with that done getting the new ones in place presented the problem of pushing the new hose onto the oil cooler fittings with no room to work. After fruitless efforts I went to Harbor Freight and got a long pair of 45 degree needlenose pliers. Those made the installation a snap. Recently I replaced the similarly small coolant hoses under my Miata's intake manifold that present similar resistance to R & R. Those pliers made an onerous job easy.
 

Trapperdog

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I have a set ( straight, 45 and 90 degree) of long handle needle nose which aren’t needed often, but a godsend when they are.
Ive found the same with long handle forceps, straight, angled and flared.
 
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Funny, in this discussion of replacing all the hoses, nobody has mentioned Mark's suggestion of Breeze clamps. I've replaced the few OEM clamps w/ these that I could reach when I changed the thermostat. The rest of the clamps will happen in two years when my bike is 10 yrs old.

It is my understanding it will take some fiddling to position the clamps properly - the tightening/spring mechanism is large and can interfere with other components. I ran into this when I tried to put the right middle cowl on - the radiator clamp kept hitting it and/or the lower inner cowl.
 

dduelin

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The OEM clamps have done a fine job on mine and so far I've never seen the benefit in changing them.
 
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I put breeze clamps on a couple dozen ST1300's and not a single one has ever complained about any leaks again!
I put them on my personal bike as well, and have not seen a drop of coolant anywhere.
The trick to doing the Breeze clamps is to use a 1/4 inch drive ratchet with a 14 inch extension with a 5/16 inch swivel socket.
You can reach all of them if you place/face them correctly when installing them.
 
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I put breeze clamps on a couple dozen ST1300's and not a single one has ever complained about any leaks again!
Just to be clear, my OEM clamps did not complain - they just cried quietly...drip drip drip.:bow1:
 
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