Losing coolant
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10-24-2008, 13:08
Post: #31
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Losing coolant
I concur with Pete regarding the S-60. No recovery tank, just a pressurized fill tank with a glass sight glass at mid height, designed to be filled halfway. I never have a puking issue, pressure surges seem to be handled sufficiently by the fill tank. Maybe 2-stroke owners should try filling their pressure tanks only half way. David Brady '02 LXi, NC Leroy Eckert wrote:
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10-24-2008, 14:14
Post: #32
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Losing coolant
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10-24-2008, 14:25
Post: #33
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Losing coolant
And now we know... the..rest...of the story!
On 10/24/2008 at 7:14 PM Leroy Eckert wrote: >You are correct Don. It initially says fill to the top, page one and goes >through a bleed process through the gate valves for bleeding air out of >the engine and heater system. When finished it says fill to the top of the >site glass presumably to allow for heat expansion without dropping it on >the ground. page 2. Sounds like that famous radio commentator, what's his >name??? >Leroy Eckert >1990 WB-40 Smoke N Mirrors >Dahlonega, GA >Royale Conversion > >--- On Fri, 10/24/08, Don Bradner >From: Don Bradner >Subject: Re: [WanderlodgeForum] Re: Losing coolant >To: WanderlodgeForum@yahoogroups.com >Date: Friday, October 24, 2008, 8:25 PM > > > > > > > > > > > > Leroy, would you double check that? The exact line in my >manual reads (split between front and back pages): > > > >"Remove cap and fill radiator surge tank to the top of sight glass." > > > >That is what I do, and is significantly different than "to the top." > > > >There is a large air space above the top of sight glass, which in theory >should handle heat-induced expansion without overflow. > > > >On 10/24/2008 at 4:19 PM Leroy Eckert wrote: > > > >>I looked in my BB manual and it is called a surge tank and > >>states it should be filled to the top. |
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10-24-2008, 14:27
Post: #34
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Losing coolant
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10-24-2008, 14:56
Post: #35
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Losing coolant
It would compress until it reached the pressure setting of the cap, after which
air would escape from the cap. Fluid would only escape when it is hot enough to expand to fill the entire tank, at which point it would escape sufficiently to maintain the same pressure. Expansion is temperature related. Mine gets hotter than yours, because you've replaced your alarmstat for a lower-temp one, right? Mine peaks normally at 197 unless the fan is overridden and constantly on. My problem with assuming that's the issue is that I've pushed 200 on hills in the past, including on this trip, without losing coolant. Don Bradner 90 PT40 "Blue Thunder" My location: http://www.bbirdmaps.com/user2.cfm?user=1 On 10/24/2008 at 7:27 PM Leroy Eckert wrote: >Don, now that the level of the fluid is corrected, what happens to that >air space in the tank. Does it compress????when fluid level rises?? Mine >has never blown out a drop of fluid. >Leroy Eckert >1990 WB-40 Smoke N Mirrors >Dahlonega, GA >Royale Conversion |
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10-24-2008, 15:28
Post: #36
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Losing coolant
Rad. caps are not expensive. About 2 years ago I was loosing some coolant and was instructed by my mechanic to use constant tension clamps on all of the silicone hose. They are spendy. I used the cone variety rather than the spring type.
Dick Hayden - '87 PT 38 - Lake Stevens, WA - in Corning,CA tonight. Tranny still not quite right but working.
----- Original Message -----
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10-24-2008, 15:34
Post: #37
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Losing coolant
Actually it was not at all hard to find.
Dick Hayden - '87 PT 38 - Lake Stevens, WA
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10-24-2008, 15:40
Post: #38
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Losing coolant
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10-24-2008, 16:18
Post: #39
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Losing coolant
Don, I'm sure you know but say it anyway, don't forget to add the appropriate SCA's. It's important if the HD antifreeze does not already have it added.
Dick Hayden - '87 PT 38 - Lake Stevens, WA
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10-24-2008, 17:35
Post: #40
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Losing coolant
Leroy, I'm looking for info to support theneed for a puke tank recovery system. I have also looked for closed systems or systems that direct you to leave the closed system full of two cubic foot of air as bluebird direct.
Here is some good reading onCavitation at the end of the page is a list of way good articles. Very informative on all cooling aspects. I know as Don says, things cool as they are and all is well but it doesnt hurt to learn and toss some ideas at proofand criticism. Greg94ptCa - In WanderlodgeForum@yahoogroups.com, Leroy Eckert > > Thanks, I thought that is what would happen. I have been reading the DD service manual, several sections regarding cooling and PM. There are two references to the pressure cap, a 7psi and a 9psi. No recommendation. To pressure test the radiator it says to run the pressure up to 15-20psi, do not exceed 20 psi and look for leaks and or leak down. My 13psi cap was on the coach when I purchased it and all has been well. I was wondering about the seals on the water cooled piston sleeves and how water pressure would affect them. With a 20 psi test procedure a 13psi cap should be OK. But now I wonder if I should change to 9psi. > On the tank fluid level, the DD manual says to fill the tank to 2" below the neck or the manufacturers recommendation. In our case, BB says above the site glass. > Yes I changed my alarnstat and mine runs a bit cooler than yours. > > Leroy Eckert > 1990 WB-40 Smoke N Mirrors > Dahlonega, GA > > --- On Fri, 10/24/08, Don Bradner bluethunder@... wrote: > From: Don Bradner bluethunder@... > Subject: Re: [WanderlodgeForum] Re: Losing coolant > To: WanderlodgeForum@yahoogroups.com > Date: Friday, October 24, 2008, 10:56 PM > > > > > > > > > > > > It would compress until it reached the pressure setting of the cap, after which air would escape from the cap. > > > > Fluid would only escape when it is hot enough to expand to fill the entire tank, at which point it would escape sufficiently to maintain the same pressure. > > > > Expansion is temperature related. Mine gets hotter than yours, because you've replaced your alarmstat for a lower-temp one, right? > > > > Mine peaks normally at 197 unless the fan is overridden and constantly on. > > > > My problem with assuming that's the issue is that I've pushed 200 on hills in the past, including on this trip, without losing coolant. > > > > Don Bradner > > 90 PT40 "Blue Thunder" > > My location: http://www.bbirdmaps. com/user2. cfm?user= 1 > > > > On 10/24/2008 at 7:27 PM Leroy Eckert wrote: > > > > >Don, now that the level of the fluid is corrected, what happens to that > > >air space in the tank. Does it compress???? when fluid level rises?? Mine > > >has never blown out a drop of fluid. > > >Leroy Eckert > > >1990 WB-40 Smoke N Mirrors > > >Dahlonega, GA > > >Royale Conversion > |
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