replacing only one leaking coolant hose

S

Synthesis

Experienced Member
Joined
22 January 2006
Messages
1,765
Current Situation:
- Last Sept I got my main coolant hoses replaced while getting the TB done.
- Found that I had a leak after taking forever to install my clutch twice.
- Replaced my coolant tank and all the lil hoses that attach to it.
- Found that the following hose is leaking where the clamp attaches (stole this pic from goldNSX):
leakinghose.jpg

- Ordered new hose yesterday

Questions:
- When I remove this hose, will I get a blue waterfall?
- Do I have to drain the whole system?
- How much coolant should I have to refill all the crap that comes out?
- Will I have to bleed the system afterwards? (please god, NO :frown: )
- What kind of silicone grease should I use to install the new hose?
- Where can I get it, what's it called?
- If I do have to bleed the system, do I have to follow everything in the manual? Is there a shortcut? (It looks like a pain)

A little background - I got my coolant hoses replaced @ baranco acura in ATL (now under new management = sons acura). when i told them about my coolant leak, the manager was being a douche, saying that it's already been over a year (even though i only put like 3kmi on the car since that time and it was only one month over the one year mark). Because of this, they would not even check to see where the leak was coming from without charging me. they should call it sons of bitches acura (esp since i spent over 3200 bucks when i had all that service done).

anyway, your responses are appreciated.
 
1. yes when u remove that house alot of coolant will flow out.
2. you dont have to drain the whole system just replace the coolant thats leaked out.
3. yes all the coolant that leak out
4. YES you have to bleed the system bcause you introduce air in to the system when the coolant leak out if not done properly your car will over heat rough idle etc....
5. i always use silicon base spray it does not leave any residue and it make the hose really easy to slip on.
6. kragen or pep boys i belive even walmart have some.
7. yes i would followed the manual for the best result since its is a $15k engine to replace.

Good luck.
jeff
 
Borrowing from jeffchai's format:

1) Yes, some. You are up high so not all coolant will come out.
2) Nope, you don't have to drain it all.
3) If you catch what comes out in a clean container, you can put it back in. You could drain it on purpose, maybe 1/2 of it, if that makes it easier to put back in.
4) Yes. But its easy.
5) You don't have to use anything. But, silicone grease does work well.
6) I found some at Home Depot in a kit for fixing garage door leaks. Orange spray can. Worked great. You could also use a little soap or even motor oil. Anything slippery will help and you are only using a dab.
7) Not a pain. Follow the steps in the manual. Very easy. The main bleed valve (you can see it in the picture) was the one that took the most air out. I thought I had it all out after a few bubbles, but didn't. Bleed this one until you are sure its an even stream of coolant only. Again, not a big deal.

Unsolicited: If I was replacing one of my two main coolant hoses, I'd replace both, unless I knew the other was new. (I actually replaced all 22 last summer, so I did do what I say in this case.)

Hope its warm where you are. Happy New Year.
 
You could also use a little soap or even motor oil.

That would be a VERY BAD idea. No petroleum based products on hoses.

LarryB
 
That would be a VERY BAD idea. No petroleum based products on hoses.
Click to expand...

Oops, I used WD-40 for slipping on the coolant hoses. After rubbing in some WD-40 the hoses went on nicely. Works also for getting them off. As stated on the WD-40 site, rubber is not really attacked. Some rubber compounds can swell when soaked in WD-40 but should return to normal after evaporation.

I guess I'll have to see how they hold up over time and hope that WD-40 is not petroleum based.:confused:

Roger
 
Synthesis said:
Current Situation:
- Last Sept I got my main coolant hoses replaced while getting the TB done.
- Found that I had a leak after taking forever to install my clutch twice.
Click to expand...

Just thought I recall this pic. :wink:

Interesting: Why did you get a leaking hose after one year? The SOURCE is of interest. Have a look at the area where the hose is attached. I've found deep scratches on mine (screwdriver) from prior deinstallation done by idiots. You can use a screwdriver but only in a very sharp angle to avoid deep scratches. This may be the case in your scenario too as the hose was leaking again.
 
goldNSX said:
Just thought I recall this pic. :wink:

Interesting: Why did you get a leaking hose after one year? The SOURCE is of interest. Have a look at the area where the hose is attached. I've found deep scratches on mine (screwdriver) from prior deinstallation done by idiots. You can use a screwdriver but only in a very sharp angle to avoid deep scratches. This may be the case in your scenario too as the hose was leaking again.
Click to expand...

i'm pretty sure it was leaking the whole time - i only noticed it when i removed my trans (the first time), which was only a couple thousand miles after i got this service done. i'm convinced it was something done during installation of the hose that caused this (or maybe a faulty hose?).....
either way - they should've fixed it :mad:

guess if you want something done right.......


thanks to everybody for posting
 
Synthesis said:
Current Situation:
- Last Sept I got my main coolant hoses replaced while getting the TB done.
- Found that I had a leak after taking forever to install my clutch twice.
- Replaced my coolant tank and all the lil hoses that attach to it.
- Found that the following hose is leaking where the clamp attaches (stole this pic from goldNSX):
leakinghose.jpg

- Ordered new hose yesterday

Questions:
.
Click to expand...

Just curious about the smaller hose to the left of the larger one being circled. Is that for the heater? Anyone experienced failure on this smaller hose? Will I lose all coolant if it bust?
 
nis350 said:
Just curious about the smaller hose to the left of the larger one being circled. Is that for the heater? Anyone experienced failure on this smaller hose? Will I lose all coolant if it bust?
Click to expand...

Heater, yes. It goes crosswise to the engine. You will loose all of the coolant after some time as with any bursting hose except the very top ones of the coolant bottle. It's only a matter of time. A certain amount of air in the engine will destroy any headgasket.
 
but, is coolant/spit enough to get the big SOBs on?
would any silicone grease work? (i haven't really had time to work on the nsx lately, so i'll be doing it next week or something.)
if coolant will suffice, i won't bother buying the silicone for the one hose.
(you think shin-etzu grease would be OK for this application?)
 
I'm in the middle of changing out my hoses and I've used silicone spray lubricant on each hose--they slip on easily with this stuff. Spray each pipe and hose opening liberally and there is no problem.
 
I need to change my hose it burst on the freeway today... i didnot know until i parked about an steam was coming out the back. I have no idea how long i was driving with the hose spraying coolant. The temp went up but not to the red. The temp did not go up until i parked. I did floor it 1/2 mile before parking. I'm going to replace all 3.

I was going to order the OEM hoses today, but i found the Samco Silicone hoses.

I believe the hoses in the kit Samco provides is for the front (Radiator to Pipe). I'm not sure though.

Does anyone know the Samco Part Number for these three hoses.
 

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