Sweating Rubber Hoses on Engine
#585951
01/17/10 07:52 PM
01/17/10 07:52 PM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
My car has not been started in 8-10 weeks due to our weather. It is in an unheated garage and I have noticed that one of my heater hoses and my PCV hose has sweat on them. I have noticed the one heater hose doing this over the last couple of Winters but now I noticed the PCV valve hose now doing it too. Is this typical moisture from the Winter weather outside? Ref: The PCV hose is new and the heater hose is at least 8 years old. Is it weird that only one of the two heater hoses does this (small one)?
Thanks
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
|
|
|
Re: Sweating Rubber Hoses on Engine
[Re: aarcuda]
#585954
01/18/10 07:14 AM
01/18/10 07:14 AM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
Mine was "oily" too. On my PCV hose, it was leaking down onto my valve cover and I thought that oil was leaking from the cover. Once I figured it out, I was surprised how oily it was when I wiped it off. It wasn't the moisture that bothered me it was the "oily" substance that had me thinking.
Thank you both for the responses.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
|
|
|
Re: Sweating Rubber Hoses on Engine
[Re: SportF]
#585958
01/18/10 10:07 PM
01/18/10 10:07 PM
|
Joined: Mar 2003
Posts: 15,491 the boonies
aarcuda
I Live Here
|
I Live Here
Joined: Mar 2003
Posts: 15,491
the boonies
|
no armourall in my whole shop. so none on my hoses. its just condensation. wierd
It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspensions, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas.
|
|
|
Re: Sweating Rubber Hoses on Engine
[Re: SportF]
#585960
01/18/10 10:13 PM
01/18/10 10:13 PM
|
Joined: Mar 2003
Posts: 15,491 the boonies
aarcuda
I Live Here
|
I Live Here
Joined: Mar 2003
Posts: 15,491
the boonies
|
i know. it has to be some weird stuff. feels oily to me. but it dried up completely once i drove the car and got it hot. i havent a cllue what it is. but im not worried about it anymore since all you guys see it too
It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspensions, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas.
|
|
|
Re: Sweating Rubber Hoses on Engine
[Re: Paul_Fancsali]
#585963
01/19/10 07:51 PM
01/19/10 07:51 PM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
Paul, I do agree but I found something interesting. I have a bunch of different sizes & styles of rubbber hose hanging on the garage wall about 5 feet away from the Challenger. Tonight, I was looking at the rubber hose that I used on the PVC line (that was sweating) and then looked over at my wall to find the longer piece that I cut it from. Out of all the pieces (apx 20 or so) hanging on the wall, two pieces have the sweat (including the piece used on the PCV hose)and the rest do not. Both pieces are "heater hose" and they were both drenched with sweat. All of the other styles were dry as a bone. It appears that the type of rubber might have had something to do with the sweat.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
|
|
|
Re: Sweating Rubber Hoses on Engine
[Re: bordin34]
#585966
01/20/10 10:01 AM
01/20/10 10:01 AM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
My PCV hose is a Gates Y200 3/8" "heater hose" and it is sweating. I think that the oily fumes in the pcv line is attacking that 3/8" heater hose. I am going to replace that line but I am not sure of what type of rubber yet. Maybe fuel line. I just bought the Gates 5/8" and 1/2" heater hose this week to replace the existing heater hoses. I will get these swapped out this week and start this car this weekend and then watch the hoses next week as out temps will be heading back down. The existing lines are old. UPDATE: I just called my local NAPA store and they said not to use the heater hose for the oil vapors. They said that rubber fuel line will be fine for the oil vapors. This makes me wonder if I am losing any vacuum thru the PCV valve-heater hose. I am picking up some 3/8" fuel line tonight.
Last edited by YO7_A66; 01/20/10 10:16 AM.
|
|
|
Re: Sweating Rubber Hoses on Engine
[Re: YO7_A66]
#585967
01/20/10 09:15 PM
01/20/10 09:15 PM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
Final Update: I changed the 3/8" PCV (heater hose) hose to the 3/8" fuel line. When I pulled it off, my hands were covered with oil. The entire length of the hose had a film of oil on it. Lesson learned.
I changed out both the 1/2" and the 5/8" heater hoses. The one that was sweating was very soft. I could have tied it into a bow/knot it was so soft. I am assuming the age/condition was the cause. The other hose had some scaling (rubber deteriating) and it was probably going to be leaking soon. I will start the car this weekend and then watch the new hoses next week as the weather cools down. The only hose left that was sweating was the radiator overflow hose (the one that goes from the cap down to the frame). It is a soft rubber with exterior ribs running down the length of the hose. It is very soft as well and it did not show the material written on the hose. I will replace this one next with heater hose. Thanks to all,
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
|
|
|
|
|