RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 08-10-2018, 11:08 PM   #1
Junior Member
 
Join Date: Aug 2018
Posts: 29
95 Rexhall Aerbus 460 runnin warm

after a hellish 48 hours getting the rex home (bought a bigger inline pump, drove 150 miles to rv, installed it, worked just long enough to move it too end of driveway, were pump fried. so i ran to parts store, bought the in tank pump, spent hours droppin tank (finished at midnight to find the part store sold me wrong pump, had to spend night in rv no bedding no pillows no clean clothes nothing) take pump back with original have to order but there same day) get new pump in. runs great. hook up toad (99 jeep cherokee) and pass front caliper stuck blowin smoke. crimp off line get down road the temp gauge will stay at the m in normal all day get on the highway and it goes up to a..... then l n creeps past pull over let it idle and it goes back down to m... on highway again samething. no jeep it will go pretty far on a n creep to l, then driver front caliper stuck. i always stopped b4 it hit red and it never boiled. antifreeze looks fresh and rad looks new. what can i do to drop the temp, every 460 ive ever had ran on the n. even usin same rad the 351w used b4 460. only time guage ever moved was when it was over heating
vogey is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-11-2018, 02:08 AM   #2
Community Administrator
 
JohnRR's Avatar


 
Fleetwood Owners Club
Workhorse Chassis Owner
Join Date: Sep 2010
Location: Marquette, Michigan "Da UP" & Lehigh Acres Fl
Posts: 21,306
So many possibilities one that comes to mind is does it have a fan shroud?
__________________
John & Cathy R.
06 Pace Arrow 38L Workhorse W24
08 14 Lincoln MKX AWD, 06 Lincoln Mark LT 4X4
See My Pace Arrow Upgrades
JohnRR is online now   Reply With Quote
Old 08-11-2018, 02:34 AM   #3
Senior Member
 
hoakken's Avatar
 
Join Date: Aug 2014
Location: Fort Worth, TX
Posts: 239
Lower radiator hose collapsing at speed ? Repaired a coach on a gm chassis with big block with what seems to be similar to what you are having. Customer had replaced water pump, radiator cleaned, fan clutch with no success . Hose was missing a spring like coil that prevents hose collapse .
hoakken is offline   Reply With Quote
Old 08-11-2018, 07:51 AM   #4
Junior Member
 
Join Date: Aug 2018
Posts: 29
it does have fan shroud, i had my wife crawl under while i pushed gas in park, (no tach but by ear had to have been spinnin 3k) she said hose wasnt collapsing. motor runs great, has good power, and seems to be getting pretty good mpg. the rv has basically been unused for 3 years, he started it and moved it now n then. but literally never slept in the rv. just took it on a couple day trips to the lake by sounds of it. i kinda suspect the thermostat though it cooling itself back down idling throws me off the thermostat idea. the plan for now is pop the center outta the stat. and get a aftermarket temp gauge (weres a good place to mount temp sensor on a efi 460, the ridiculously small dog house opening dont leave much for "exploring") everything about were the needle sits is wrong to me. never seen a fords needle sit straight up in the middle of the gauge at idle/operating temp and never really seen them move once its warmed up
vogey is offline   Reply With Quote
Old 08-11-2018, 10:22 AM   #5
Senior Member
 
Rexhall Owners Group
Join Date: Jul 2013
Location: Beavercreek, OH
Posts: 238
Lot of options for overheating at highway speed. In the old days, a lean mixture would be a suspect, but with EFI that shouldn't be an issue unless there is a vacuum leak somewhere. More likely is a partially clogged radiator, external junk clogging up the radiator fins, air flowing around the radiator and not through it,lower rad hose partially collapsing or a thermostat not fully opening. Your guess about the thermostat is where I would start after your sure the radiator fins are clean and there there is nowhere for air to go around rather than through the radiator. A thermostat stuck partially open would be able to keep the temp down at low speeds but not enough flow to keep things cool at highway speeds.

Good luck and welcome to Rexhall family!
__________________
Jim & Lin
56safari is offline   Reply With Quote
Old 08-12-2018, 01:24 AM   #6
Junior Member
 
Join Date: Aug 2018
Posts: 29
gonna pop the center outta the stat, see if that makes a diff, the rad looks new nice clean straight fins. if it dont help im flushing the rad, on that note.. how much pressure can the rad take? i wanna get some "flush" run it drain it, do 2nd flush with water then take my cheeta and fire it into lower hose to blast anything in there out backwards. have any of you capped off the little recirculating hose that goes to pump? im told hot rodders do it to run cooler
vogey is offline   Reply With Quote
Old 08-12-2018, 04:38 AM   #7
"Formerly Diplomat Don"
 
Dutch Star Don's Avatar
 
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 16,275
I'm not sure what year they stopped installing converters on the exhaust. My 1991 had one still. If it does have a converter, they can fail and close off the exhaust once you get moving and cause overheating. At lower speeds they're not an issue.
__________________
Don & Mary
2019 Newmar Dutch Star 4018
2019 Ford Raptor
Dutch Star Don is offline   Reply With Quote
Old 08-12-2018, 03:52 PM   #8
Junior Member
 
Join Date: Aug 2018
Posts: 29
dutch star, no converter. the thought had crossed my mind of plugged exhaust. though i figured had that been the case, it would have ran poorly or eventually smell burning (nuts, sticks, ect what ever something might have packed in the pipe) but none if that happened
vogey is offline   Reply With Quote
Reply

Tags
rexhall, aerbus



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rexhall Aerbus :: 2001 Ford Rexhall Aerbus spinbp5er iRV2 Owners Registry 0 07-20-2017 08:07 PM
Rexhall Aerbus :: 1997 Chevrolet Aerbus Yar iRV2 Owners Registry 0 03-02-2017 02:46 PM
What type of RV are ya runnin' ? Peacekeeper6 iRV2.com General Discussion 1 04-22-2011 07:30 AM
Runnin' With The Boy's Rocket Heart Winnebago Industries Owner's Forum 20 04-18-2009 10:11 PM


All times are GMT -6. The time now is 11:42 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.