Good Sam Club Open Roads Forum: Class A Motorhomes: 8.1 Engine Running Hot
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  All

 > 8.1 Engine Running Hot

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 5  
Prev
time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 09/12/19 03:46pm Link  |  Quote  |  Print  |  Notify Moderator

Jennifer Koper wrote:

I just replaced the rear main sealand few days ago now my check engine light is flaking and I am hearing a strange tapping sound any ideas?
You want to start a new thread and post your equipment.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

drifterpilot

Gloucester, Virginia

Senior Member

Joined: 03/17/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 09/12/19 06:36pm Link  |  Quote  |  Print  |  Notify Moderator

Great comments since my recently posted update.
Very interesting info regarding the water pump. My cooling issue certainly could be related to the wrong water pump being installed. Before this discussion, I was not aware of a clockwise or counterclockwise rotating water pump and how it could affect the fan clutch.
I have a Workhorse OEM water pump and a Workhorse OEM fan clutch onboard. They won't be installed until two weeks after I get home. I will closely compare the presently installed water pump with the new one that will be installed to see if their is an obvious difference. I will also install the new fan clutch regardless of the condition of the existing one.
I depart Charleston for Gloucester Virginia Sunday morning.
I will post an update when this work is completed.
Thank you for all the comments.


2003 Winnebago Adventurer 33V
112,000 miles
Workhorse W20
Vortec 8.1, Allison 1000
Kingdome (in-motion tracking)
Bilstein shocks (installed July 2013)
Safe-T-Plus Steering Stabilizer
Blue Ox Adventa II and KarGuard
Brake Buddy
2019 Chevrolet Colorado LT 4-Wheel Dr


drifterpilot

Gloucester, Virginia

Senior Member

Joined: 03/17/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 09/12/19 06:38pm Link  |  Quote  |  Print  |  Notify Moderator

rgatijnet1
I should have stated that I have put on almost 2,000 miles since all this started.

rgatijnet1

Florida

Senior Member

Joined: 06/22/2009

View Profile



Good Sam RV Club Member


Posted: 09/13/19 04:52am Link  |  Quote  |  Print  |  Notify Moderator

drifterpilot wrote:

rgatijnet1
I should have stated that I have put on almost 2,000 miles since all this started.


My comment about the fan clutch break in period was meant for after your new one is installed.

crawford

Dandridge Tenn.

Senior Member

Joined: 03/22/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 09/14/19 09:28am Link  |  Quote  |  Print  |  Notify Moderator

Wondering if radiator is at a 100% yes I know it happen after other repairs were made. I heard many say I had a carburetor replacement and remain seal went bad. Just saying to make a point.


Change from a c class to a A class Georgetown 07 triple slide

rwgeiser

Anchorage, Alaska

New Member

Joined: 07/05/2004

View Profile



Good Sam RV Club Member


Posted: 09/14/19 09:59am Link  |  Quote  |  Print  |  Notify Moderator

Somewhere in threads a couple years ago part numbers for the 8.1 workhorse rv water pump were listed. I checked at the time and Rock Auto Had the correct number pump available. Much cheaper than Workhorse Prices.


Ron & Del
2003 Fleetwood, Storm 30H
P32 Chassis
Part-Timer, Retired


tenn.vol.

florida

New Member

Joined: 02/13/2012

View Profile



Good Sam RV Club Member


Posted: 09/22/19 08:41am Link  |  Quote  |  Print  |  Notify Moderator

Drifterpilot, I tried to read all the answers that you got, as
I have a very similar problem with my 8.1. What I think I know
about the water pump is their are several pumps that fit the 8.1.
I have been lead to believe that the correct pump has 7 vanes or
blades while a lesser pump has fewer.
I carry a Delco pump with me at all times, that I paid less than
$100 dollars for. I need to take the back off of the back and
check that it has the 7/8 blades.

Do you think that you have fixed your problem? If so give us
what you think fixed the problem!

Thank you for your time and anyput.....Tenn.Vol.

Also had a friend that had a fan clutch replaced yrs. ago
in a 454 MH, the fan was for a light duty car/truck.
ANd of course he had to have it replaced again !!!

drifterpilot

Gloucester, Virginia

Senior Member

Joined: 03/17/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 09/22/19 07:58pm Link  |  Quote  |  Print  |  Notify Moderator

Tenn.vol
I am home after my 2400 mile trip with the 8.1 running with high temps most of the time. My travels are completed for this year.
I have purchased through a Workhorse distributor a Workhorse water pump and fan clutch and I expect in the next 2 - 3 weeks to have both items installed. I intend to have the engine flushed, new coolant added and the radiator pressure washed (carefully). I am also replacing my lower shroud as I noticed a 7" X 3" hole in the bottom of it. Yep, that's a Workhorse number also.
I probably won't have a status report till April/May 2020 when the weather is warmer and I make my annual trip to Florida.
Again, I thank everyone for their comments and suggestions.
I hope to be able to post some positive news in the spring.

rgatijnet1

Florida

Senior Member

Joined: 06/22/2009

View Profile



Good Sam RV Club Member


Posted: 09/23/19 04:19am Link  |  Quote  |  Print  |  Notify Moderator

Drifterpilot,
When the lower shroud is installed there is a screw that must be installed near the middle to keep the shroud from making contact with the fan clutch fan blades. This might be why you have a hole at the bottom. There was a service bulletin that went out to Workhorse dealers to correct this issue on the RV's with the 8.1L engine. The black plastic shroud comes in two pieces and it is important to make sure that it is fastened and sealed so that there is no movement and so that the fan can draw the most amount of air through the radiator.

ExTreker Vic

ct

New Member

Joined: 11/20/2018

View Profile



Good Sam RV Club Member

Offline
Posted: 09/23/19 05:26pm Link  |  Quote  |  Print  |  Notify Moderator

Drifterpilot,
I was reading your postings but not signed in. After signing in I was unable to get back to the thread I was reading so I hope this gets to you.
A common problem that causes your overheating is garbage collects between the heat exchangers that are mount in front of the engine radiator. It requires moving the exchangers back to access the area between the exchangers and the radiator.
This is a common problem that can mask the reason why the temps are running high.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 5  
Prev

Open Roads Forum  >  Class A Motorhomes  >  All

 > 8.1 Engine Running Hot
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS