Losing coolant

[Leroy Eckert]

I remember that thread also Don. I was feeling my way through things then and still do. lol I left mine as is because I have the attitude, if it's working don't change it. Someone must have had a puking issue early on in my coach???possibly although nothing in the my files. Leroy Eckert 1990 WB-40 Smoke N Mirrors Dahlonega, GA Royale Conversion --- On Thu, 10/23/08, Don Bradner wrote: From: Don Bradner Subject: Re: [WanderlodgeForum] Losing coolant To: WanderlodgeForum@yahoogroups.com Date: Thursday, October 23, 2008, 10:05 PM The parts book that came with this coach calls for a 7 lb. I have no idea when this one was changed to a 13 lb. There is a thread back in March of 2007 starting with post 20947 where Curt Sprenger said: "Coolant Pressure Control Cap...the 92 series manual recommends all series 92 on-highway vehicle engines use a minimum 9 psi control cap. My radiator cap is a 7 psi. Is this a Bluebird change? What are others using? Should I be concerned? The engine temperature runs at about 185 to 195." That thread ended up being more about alarmstats, misters, etc. but besides you (Leroy) mentioning that you had a 13, Pete posted in that thread that the shop that did his radiator replaced with a 15. I'm going to guess that a higher one gets used precisely because the 7 lb, as it loses strength, tends to let more slop out. If you think about it, a 7 lb with a boiling point somewhere above 230 degrees is into temperatures where the engine would be in real trouble anyway. Increasing the cap pressure to 13 takes boiling to 250, but does that really matter? I'm thinking I will go looking for a new cap tomorrow as an easy "maybe fix", and I will look for one around the same 13 lbs. On 10/23/2008 at 6:17 PM Leroy Eckert wrote: >I have a 13lb cap also and it is old. Same year. >Leroy Eckert >1990 WB-40 Smoke N Mirrors >Dahlonega, GA >Royale Conversion > >--- On Thu, 10/23/08, Joyce and Richard Hayden <"rhhayden%40msn.com"> wrote: >From: Joyce and Richard Hayden <"rhhayden%40msn.com"> >Subject: Re: [WanderlodgeForum] Losing coolant >To: "WanderlodgeForum%40yahoogroups.com" >Date: Thursday, October 23, 2008, 8:32 PM > >Don, I would wonder why someone has put a 13 # cap on your cooling >system. The standard for these engines have been 7#. I haven't heard >of very many with anything above that. > >Dick Hayden - '87 PT 38 - Lake Stevens, WA - still in Medford, OR but on >the road again tomorrow after the tranny is fixed.