Over-heating on long grade

[amweatherly@...]

I spent a week at Buck,s Lake Camp. This camp is located in the
northern Sierra's 45 miles NE of Oroville Ca. That's about a 40 mi
climb with some grades a steep as 13%. Both my trans and engine temp
got very close to max. Only pulling off to a turnout prevented
red lining. I was geared down to 3rd abd 2nd, never pulling more than 10 or 11
lbs. of turbo boost. This is the first long climb I've done.
Do I have a cooling problem. I don't think I ever had the pedal
more than half down.

It was also fun coming down, but thats another story.


Art Weatherly
Riverside Ca.
'85 PT36

[ronmarabito2002]

Yes. YOu have a cooling problem. Check to see that the radiator is not covered
with junk on the outside. If that is clean, then have your radiator checked and
flushed. If that doesn't get it, replace the thermostats. WARNING: It doesn't
take much overheating to cost you an engine.

R.E. (Ron) Marabito, Dallas, TX 92WB40


--- In WanderlodgeForum@yahoogroups.com, "amweatherly@..."
wrote:
>
> I spent a week at Buck,s Lake Camp. This camp is located in the
> northern Sierra's 45 miles NE of Oroville Ca. That's about a 40 mi
> climb with some grades a steep as 13%. Both my trans and engine temp
> got very close to max. Only pulling off to a turnout prevented
> red lining. I was geared down to 3rd abd 2nd, never pulling more than 10 or 11
lbs. of turbo boost. This is the first long climb I've done.
> Do I have a cooling problem. I don't think I ever had the pedal
> more than half down.
>
> It was also fun coming down, but thats another story.
>
>
> Art Weatherly
> Riverside Ca.
> '85 PT36
>

[J R]

Art, What engine RPM were you pulling on the climb? DD's need lots of RPM to
help with cooling and getting full power. I try to hold 2000-2100 and down shift
at 1800, if I don't it will get Hot, fast. You can not lug a 6 or 8 V92's (or
the V71's) I have at of OTR miles with the old 8V71, good engine if you don't
baby it.


J R Saunders
in The Great Take State of Washington
(South of SEA-TAC) aka jr182pilot
Bug Smasher: 1982 PT40
Cruiseairs & Roof Airs
Red 6V92
Photobucket http://tinyurl.com/cn85dx







--- In WanderlodgeForum@yahoogroups.com, "amweatherly@..."
wrote:
>
> I spent a week at Buck,s Lake Camp. This camp is located in the
> northern Sierra's 45 miles NE of Oroville Ca. That's about a 40 mi
> climb with some grades a steep as 13%. Both my trans and engine temp
> got very close to max. Only pulling off to a turnout prevented
> red lining. I was geared down to 3rd abd 2nd, never pulling more than 10 or 11
lbs. of turbo boost. This is the first long climb I've done.
> Do I have a cooling problem. I don't think I ever had the pedal
> more than half down.
>
> It was also fun coming down, but thats another story.
>
>
> Art Weatherly
> Riverside Ca.
> '85 PT36
>

[David Brady]

I'd add that you were probably running it for significant
periods of time out of torque converter lock-up. The transmission
runs on torque converter mode till you hit the upper rpm
range of second gear at which point the torque converter
locks and you have direct mechanical drive. In non-lock,
the torque converter provides fluid drive which causes
a bunch of heat. Try to go fast enough to put her in lock-up.
Lock-up feels like another gear shift. Count the shifts, strive
for three at a minimum. This will significantly cut down on
the transmission heat, and will also cut down on engine
heat. The tranny does a good job of baking the engine.

David Brady
'02 LXi, NC

-----Original Message-----

From: ronmarabito2002

Sent: Aug 18, 2009 4:30 PM

To: WanderlodgeForum@yahoogroups.com

Subject: [WanderlodgeForum] Re: Over-heating on long grade

Yes. YOu have a cooling problem. Check to see that the radiator is not covered with junk on the outside. If that is clean, then have your radiator checked and flushed. If that doesn't get it, replace the thermostats. WARNING: It doesn't take much overheating to cost you an engine.



R.E. (Ron) Marabito, Dallas, TX 92WB40



--- In "WanderlodgeForum%40yahoogroups.com", "amweatherly@..." ...> wrote:

>

> I spent a week at Buck,s Lake Camp. This camp is located in the

> northern Sierra's 45 miles NE of Oroville Ca. That's about a 40 mi

> climb with some grades a steep as 13%. Both my trans and engine temp

> got very close to max. Only pulling off to a turnout prevented

> red lining. I was geared down to 3rd abd 2nd, never pulling more than 10 or 11 lbs. of turbo boost. This is the first long climb I've done.

> Do I have a cooling problem. I don't think I ever had the pedal

> more than half down.

>

> It was also fun coming down, but thats another story.

>

>

> Art Weatherly

> Riverside Ca.

> '85 PT36

>

[amweatherly@...]

Rpms on the climb were 1700 - 2100.


Art Weatherly
Riverside Ca

[Gregory OConnor]

I would find out when Stewart the owner of Walts radiator is in and take it by
for a look at.
http://stewartsradiator.com/contact.nxg

He is near CCW and Mainstreet Riverside
Greg of Tim&Greg 94ptca


--- In WanderlodgeForum@yahoogroups.com, "amweatherly@..."
wrote:
>
> I spent a week at Buck,s Lake Camp. This camp is located in the
> northern Sierra's 45 miles NE of Oroville Ca. That's about a 40 mi
> climb with some grades a steep as 13%. Both my trans and engine temp
> got very close to max. Only pulling off to a turnout prevented
> red lining. I was geared down to 3rd abd 2nd, never pulling more than 10 or 11
lbs. of turbo boost. This is the first long climb I've done.
> Do I have a cooling problem. I don't think I ever had the pedal
> more than half down.
>
> It was also fun coming down, but thats another story.
>
>
> Art Weatherly
> Riverside Ca.
> '85 PT36
>

[Gregory OConnor]

Dave did you ever learn if the HP is increased while in cruise?

[David Brady]

Yes, it's in the DDEC IV documentation. Don't know about the
other DDEC's. Something like:

"Cruise power allows you to take
advantage of additional
torque and better performance when operating
your truck in
cruise control. Full rated torque is available when
operating
in cruise control to improve performance"

David Brady
'02 LXi, NC

-----Original Message-----

From: Gregory OConnor

Sent: Aug 18, 2009 9:06 PM

To: WanderlodgeForum@yahoogroups.com

Subject: [WanderlodgeForum] Re: Over-heating on long grade

Dave did you ever learn if the HP is increased while in cruise?