A long afternoon

[Leroy]

I am interested in this engine thermostat phenomenom. I messed with my cooling
system for months and found a combination that works well for me.
The engine thermostats do not control the fan cycles on my coach. I don't
believe they do on yours. Could be wrong. An separate system incorporating an
Alarmstat does that. Stock Alarmstats were 195 degrees with an approximate 8-10
degree spread. The fan cycled to high at 203-205 and back to about 193 at fan
idle. I run a 190 degree Alarmstat with 180 degree thermostats. I can see the
movement on the gauge and the VMSpc. My spread is between 188 and 195 depending
on OAT. If I run my fan on override it holds at 180 in winter and 190 in summer.
I sure would like to know how your fan is configured and why it would be cycling
after you changed thermostats. If it ran 170 all the time it should never cycle
but remain in idle or about 500rpm.

--- In WanderlodgeForum@yahoogroups.com, Robert Johannesen wrote:
>
> I dropped my thermoststs to 170s for about 6 months and the fan kept cycling
on and off so often I went back to stock after talking to Detroit. I probably
still have them if you want to try them on your rig.
>
> Â
>
>
>
> ________________________________
> From: ronmarabito2002
> To: WanderlodgeForum@yahoogroups.com
> Sent: Sun, February 28, 2010 1:58:50 PM
> Subject: [WanderlodgeForum] Re: A long afternoon
>
> Â
> Mike: Why do you want to change thermostats to 170's? Good heat without
overheat makes the engine run better and more efficiently. I think 180's is cool
enough.
>
> R.E. (Ron) Marabito, Dallas, TX 92WB40
>
> --- In WanderlodgeForum@ yahoogroups. com, "mbulriss" <mbulriss@ .> wrote:
> >
> > I spent all afternoon (into the early evening) opening up the bed and then
the innards to be able to replace alternator #1 - one more time. In mine, I also
have to work around all the plumbing, which was conveniently installed in the
way of the engine hatch! After opening the floor, you can't even see the alt!!!
I have to stand on the tranny and kind of remove the alt by feel. I bought a new
one and replaced it. Not going to screw around rebuilding the old one again -
7000 miles since the last time has soured me on rebuilds. Besides, the new one
was the same price as the last rebuild. This is really not a fun job.
> >
> > After I finished installing the alt, I then installed a replacement turbo
intake tube that I found in a 'reclamation center' (aka: truck junk yard) to
replace the one that broke in South Padre. The weld job did not hold up. If you
want a good laugh, I called Detroit to see about getting a new one, because I
really wanted a new one. When I heard $500 for a piece of exhaust pipe, I
decided to try to find a used one. If anyone knows of a place to get part number
5101394 (yup, it's stamped right on it) for way less than $500, let me know
please. And I used to think Harley parts were high dollar!
> >
> > Man, I am beat up and sore all over! I left the floor open as I want to
remove the 'infamous' coolant hoses to the air pump tomorrow. At least that's
the current plan. I realllllly am not looking forward to that job! I think I
will replace them with braided stainless steel hoses so I never have to do it
again!
> >
> > While I was having fun, the wife pulled each screen window and washed them,
did the Invisible Glass cleaning on each window, and then scrubbed each window
track and silicon lubed them. They slide open really nice now.
> >
> > It seems my to-do list just keeps growing without getting shorter! Is it
just me? I want to change the thermostats to 170s. I need to rebuild the Gast
air pump. I have service the air dryer on the list. I plan to pull the electric
heaters to clean them out. And on and on..... And I haven't even started on the
wife's list of modifications yet! I keep wondering: Are we having fun yet?
> >
> > Long day..... having fun.
> >
> >
> > Mike Bulriss
> > 1991 WB40 "Texas Minivan"
> > San Antonio, TX
> >
>