Wanderlodge Owners Group  
BuyByeBlueBird.com
Eclipse
WOG YouTube

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Generators

Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

Site Search:
Reply
 
Thread Tools
  #1  
Old 07-06-2022
Dog Leg Bill Dog Leg Bill is offline
Senior Member
 
Join Date: Jan 2017
Location: San Diego
Posts: 140
Default '84PT Perkins/Kohler 103V 63HZ zero load

Like the title says on the generator I am seeing 103V and 63-64HZ readings from an outlet in the kitchen, with very little load on the system. When load is added, like turn on Criusair's, initial drop to start compressor 86V still 64HZ, once compressors are running I see 94V 63.6 HZ.

The Perkins runs well and has regular attention to oil, coolant and air cleaner.

What would you all look at?
__________________
Bill Hard
San Diego, CA
1984 PT40
Reply With Quote
  #2  
Old 07-06-2022
badandy's Avatar
badandy badandy is offline
Senior Member
 
Join Date: Dec 2016
Location: delavan
Posts: 4,895
Default

How many hours on the gen? About a thousand?
__________________
Reply With Quote
  #3  
Old 07-06-2022
tulipvendor50's Avatar
tulipvendor50 tulipvendor50 is offline
Senior Member
 
Join Date: Dec 2007
Location: Kitimat,
Posts: 1,554
Default '84PT Perkins/Kohler 103V 63HZ zero load

Bill:

First, at 63 Hz your generator is running too fast. I would check if it is actually running fast, so that would be your governor. Once that has been corrected then check the voltage which is the regulator.
__________________
Bill
1984 FCSB $quanderlodge
Kitimat, BC, Canada
Reply With Quote
  #4  
Old 07-07-2022
Bill Pape's Avatar
Bill Pape Bill Pape is offline
Administrator
 
Join Date: Jan 2008
Location: Commerce
Posts: 13,749
Default

what do the two overhead volt meters read? Is the cooling fan electric and is it running?
__________________
Bill Pape
1988 FC, Silver Edition
Commerce, Michigan
Reply With Quote
  #5  
Old 07-07-2022
badandy's Avatar
badandy badandy is offline
Senior Member
 
Join Date: Dec 2016
Location: delavan
Posts: 4,895
Default

Quote:
Originally Posted by Bill Pape View Post
what do the two overhead volt meters read? Is the cooling fan electric and is it running?
Bill - The gen won't stay running if it isn't producing AC power.

At about 1,000 hours these old Kohler heads die. Brushes go bad, the regulator goes bad. and the gen head goes bad. Pony up the $1800 for a new gen head now or nickle and dime your way to a failed marriage when you're out of town the next time it dies.
__________________
Reply With Quote
  #6  
Old 07-07-2022
Randy Dupree's Avatar
Randy Dupree Randy Dupree is offline
Forum owner
 
Join Date: Dec 2007
Location: Port St Joe,Fl
Posts: 46,073
Default

Quote:
Originally Posted by badandy View Post
Bill - The gen won't stay running if it isn't producing AC power.

At about 1,000 hours these old Kohler heads die. Brushes go bad, the regulator goes bad. and the gen head goes bad. Pony up the $1800 for a new gen head now or nickle and dime your way to a failed marriage when you're out of town the next time it dies.
Failed marriage,now thats funny!
and ohh so true.
__________________
DO NOT SEND PM
email me at randy@randydupree.com only.

Randy Dupree
2000 LXI 43
Bainbridge,Ga.
Port St Joe Fl.
www.buybyebluebird.com

randy@randydupree.com
Reply With Quote
  #7  
Old 07-07-2022
badandy's Avatar
badandy badandy is offline
Senior Member
 
Join Date: Dec 2016
Location: delavan
Posts: 4,895
Default

Quote:
Originally Posted by tulipvendor50 View Post
Bill:

First, at 63 Hz your generator is running too fast. I would check if it is actually running fast, so that would be your governor. Once that has been corrected then check the voltage which is the regulator.
63hz isn't really alarming at zero load. You usually set the gen to get 62hz at no load because it will fluctuate a bit under changing load and the engine's gov isn't perfect. Under max load you want to try to avoid going below 60hz so you air on the high side at the no-load RPM. 59-62hz is a good range, too.
__________________
Reply With Quote
  #8  
Old 07-07-2022
Bill Pape's Avatar
Bill Pape Bill Pape is offline
Administrator
 
Join Date: Jan 2008
Location: Commerce
Posts: 13,749
Default

Thanks still learning, should we now call you light weight
__________________
Bill Pape
1988 FC, Silver Edition
Commerce, Michigan
Reply With Quote
  #9  
Old 07-07-2022
Dog Leg Bill Dog Leg Bill is offline
Senior Member
 
Join Date: Jan 2017
Location: San Diego
Posts: 140
Default

Thank you for the responses.


Quote:
Originally Posted by badandy View Post
How many hours on the gen? About a thousand?
Good guess, 1276 hours, assuming the hobbs meter is working correctly which I have doubts about.

Quote:
Originally Posted by badandy View Post
or nickle and dime your way to a failed marriage when you're out of town the next time it dies.
Words of wisdom, just check my post a few years back when I was passing through Las Vegas at the end of July. Cruisair failure rate was shown to be directly correlated to wife's attitude meter.

I found a document in my blue box titled "Section 6. Generator Troubleshooting" from the days of facsimile, sent to the original owner by one Russell Border, service coordinator Blue Bird Waderlodge. I guess something along the lines of what I am doing now was done before to my bird.

I think tightwad me will waste time and energy going through the motions before ultimately heeding Andy's advice.
Attached Files
File Type: pdf Kohler Generator Troubleshooting.pdf (113.4 KB, 9 views)
__________________
Bill Hard
San Diego, CA
1984 PT40
Reply With Quote
  #10  
Old 07-07-2022
1984Lodge's Avatar
1984Lodge 1984Lodge is offline
Senior Member
 
Join Date: Aug 2017
Location: Temple Terrace
Posts: 3,003
Default

I just put a new regulator on my buddies and no diceā€¦ regulator is $400 bucks alone. I suspect the windings are shot, but it was too hot out and I did not have my megger to check the windings. I think he is planning on going with a new head from Central Georgia Generator now.
__________________

Jeff LoGiudice
Jeff@GinosGarageUSA.com
Temple Terrace, Florida
1984 Bluebird PT40
#F063411 6V92TA & MT654CR
& 1986 MCI 102A3
6V92TA & HT740 (Sold)
YouTube-Gino's Garage https://www.youtube.com/user/xjrjeff
http://www.bbirdmaps.com/index.cfm #460
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Perkins/Kohler B.Nyhof Parts Wanted 0 08-31-2021 04:06 PM
Kohler/Perkins 12.5 available Mike Hohnstein Generators 4 01-15-2020 12:38 PM
Perkins/Kohler starter Early bird Generators 3 09-02-2016 09:54 PM
Perkins/Kohler in 79 XV bushdoc Generators 6 05-30-2015 12:39 PM
need schematic for perkins gen set in 84pt Vintage American Generators 1 10-15-2011 02:11 AM

Web Search:

All times are GMT -4. The time now is 01:23 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.