| One Ton Front end shaky and scary [message #358974] |
Sat, 26 September 2020 16:04  |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
|
Senior Member |
|
|
I have this Birchaven that was gone through by the Coop seven years ago, including a one-ton front end. It has almost no miles. Like less than 2000 since the rehab.
I have been slowly taking it out of mothballs. i got it running with the old gas, I plan to drain the tanks now that i can move it.
Earlier test drives it seemed to run great and handle great. Just took it for a longer ride, about 3 miles, got up to freeway speed.
I felt shaking through the steering wheel, like something was very loose.
ANy sugestions where to start?
thanks
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
[Updated on: Sat, 26 September 2020 16:39] Report message to a moderator |
|
|
|
| Re: [GMCnet] One Ton Front end shaky and scary [message #358976 is a reply to message #358974] |
Sat, 26 September 2020 16:44  |
 |
ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
|
Senior Member |
|
|
Flat spots on the tires?
> On Sep 26, 2020, at 2:05 PM, dave silva via Gmclist wrote:
>
> I have this Birchaven that was gone through by the Coop seven years ago, including a one-ton front end. It has almost no miles. Like less than 2000.
>
>
> I have been slowly taking it out of mothballs. i got it running with the old gas, I plan to drain the tanks now that i can move it.
>
> Earlier test drives it seemed to run great and handle great. Just took it for a longer ride, about 3 miles, got up to freeway speed.
>
> I felt shaking through the steering wheel, like something was very loose.
>
> ANy sugestions where to start?
>
> thanks
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
|
|
|
|
| Re: One Ton Front end shaky and scary [message #358978 is a reply to message #358974] |
Sat, 26 September 2020 17:05 |
94nubble
Messages: 275
Registered: July 2011
Location: Chesapeake VA
Karma: 3
|
Senior Member |
|
|
Dave
If it's been sitting, probably the tires are out of shape. I would take the fronts off and have them balanced. The rears would also need it also. Do the fronts and see what if anything changes.
Tom
Tom McManus
1977 Royale
Chesapeake VA
|
|
|
|
| Re: One Ton Front end shaky and scary [message #358980 is a reply to message #358974] |
Sat, 26 September 2020 18:47 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
|
Senior Member |
|
|
How old are tires? If nylon they flatspot badly sitting. Sometimes they will drive out smooth after a while. Sometimes. How much old gas? I’d just add some fresh so it’s flammable again and use it up. Otherwise what do you do with it once drained.
John Lebetski
Woodstock, IL
77 Eleganza II
|
|
|
|
| Re: One Ton Front end shaky and scary [message #358993 is a reply to message #358980] |
Sun, 27 September 2020 06:51 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
|
Senior Member |
|
|
Tires are seven years old.
I may not have been clear in my description. The shaking started when i got up to speed but it persisted after i slowed down.
It almost felt like i had a flat.
I have never experienced running a vehicle after such prolonged sitting.
THe One Ton conversion was installed at the COOP, the coach was driven 750 miles here and hardly drive again since 2013.
Are we saying there is not a likely component failure attributed to time sitting or an installation error ?
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
|
|
|
|
| Re: One Ton Front end shaky and scary [message #358996 is a reply to message #358974] |
Sun, 27 September 2020 07:33 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
|
Senior Member |
|
|
Oh wait, this is making sense.
Right front tire was flat- slow leak, takes a few days to fall. So when it's aired up hard the flat spot goes away but when it starts to go down the flat spot shows up?
I did not harden the tire before this short test drive.
I'll try it again when i have time.
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
|
|
|
|
| Re: One Ton Front end shaky and scary [message #358997 is a reply to message #358996] |
Sun, 27 September 2020 07:46 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
|
Senior Member |
|
|
Maybe some time in the last 7 years the tire started going down and PO put some fix a flat in it and didn’t drive it and over time it turned into a wad of goop.
hertfordnc wrote on Sun, 27 September 2020 08:33Oh wait, this is making sense.
Right front tire was flat- slow leak, takes a few days to fall. So when it's aired up hard the flat spot goes away but when it starts to go down the flat spot shows up?
I did not harden the tire before this short test drive.
I'll try it again when i have time.
C. Boyd
76 Crestmont
East Tennessee
|
|
|
|
|
|
|
|
| Re: One Ton Front end shaky and scary [message #359005 is a reply to message #358974] |
Sun, 27 September 2020 11:20 |
kingd
Messages: 592
Registered: June 2004
Karma: 2
|
Senior Member |
|
|
If it sat any length of time on a flat or very low tire the tire is probably scrap. It could even be dangerous to drive
on. I would suggest you take the wheel/tire off the vehicle and take it to a tire shop. Tell them to inflate the tire
in their truck tire cage and stand back. After couple of days have them check the tire and spin it on their balancer.
I just went trough this with a tire. It was visibly obviously ruined and I scrapped it without trying to reinflate it.
An exploding tire of any size is DANGEROUS.
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
|
|
|
|
| Re: One Ton Front end shaky and scary [message #359007 is a reply to message #358974] |
Sun, 27 September 2020 12:25 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
|
Senior Member |
|
|
Dave
Just a caution on old gas - it can sometimes create varnish and result in stuck valves and bent pushrods both in the coach engine and the Onan.
Dennis
hertfordnc wrote on Sat, 26 September 2020 16:04I have this Birchaven that was gone through by the Coop seven years ago, including a one-ton front end. It has almost no miles. Like less than 2000 since the rehab.
I have been slowly taking it out of mothballs. i got it running with the old gas, I plan to drain the tanks now that i can move it.
Earlier test drives it seemed to run great and handle great. Just took it for a longer ride, about 3 miles, got up to freeway speed.
I felt shaking through the steering wheel, like something was very loose.
ANy sugestions where to start?
thanks
Dennis S
73 Painted Desert 230
Memphis TN Metro
|
|
|
|
| Re: One Ton Front end shaky and scary [message #359011 is a reply to message #359005] |
Sun, 27 September 2020 19:22 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
|
Senior Member |
|
|
Oh yeah, the tires are absolutely scrap. But i'd like to work the bugs out before i drop $1000 on new rubber.
I really should drain the tanks though.
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
|
|
|
|
| Re: One Ton Front end shaky and scary [message #359021 is a reply to message #359011] |
Mon, 28 September 2020 07:17 |
 |
Richard RV
Messages: 631
Registered: July 2012
Location: Full-timer for 12 years, ...
Karma: -17
|
Senior Member |
|
|
Dave,
Sounds to me like the tires are a pretty big bug and easily fixed. I don't see how you can diagnose anything front end without good tires.
I would gladly have paid $1000 for the one tire if it would have prevented my blowout. Cost me a lot more than a grand...
Richard
'77 Birchaven TZE...777;
'76 Palm Beach under construction;
‘76 Edgemont waiting its turn
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
