Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Alpine Coach Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-27-2021, 07:04 PM   #1
Junior Member
 
HappyPrtagee's Avatar
 
Join Date: Aug 2020
Posts: 12
Shuttering front end on potholes

I just have about 1000 miles on new Konis and first thought they were just breaking in but potholes have my front tires (100 pounds) shuttering. My airbags are properly adjusted and it feels more like a side to side slight shudder. Rig feels great over gradual dips but goes “ bam” on potholes. I have 90K on it and not a ton of service information. Looks like I have original front end components. Airbags are Firestones so I assume at least changed once.
__________________
HappyPrtagee
HappyPrtagee 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 07-28-2021, 12:12 AM   #2
Senior Member
 
R.Wold's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Freightliner Owners Club
Retired Fire Service RVer's
Join Date: Jan 2019
Location: Rosemary Farm, Northern Ca
Posts: 4,834
New tie rod ends improved this condition on mine and I did them at 50k. So even with good consistent maintenance yours may be ready. With that milage several front end components may need attention. My front end now feels tighter and is less noisy when hitting pots holes, etc.

Also when I put Konis on my Bay Star it made the front suspension too stiff. They improved handling a bit but the cost was a more harsh ride and if I’d kept that rig I would have put the Bilsteins back on the front.

With softer (or well worn) shocks your front end was probably more forgiving of hard jolts, but with it stiffer now, the jolts are harder and this may be what’s setting off the shuddering.
__________________
2016 Ventana 3427 with HWH Active Air, 1575w solar; 2001 Jeep toad.
R.Wold is offline   Reply With Quote
Old 07-28-2021, 10:03 AM   #3
Senior Member
 
Join Date: Oct 2014
Posts: 3,337
Quote:
Originally Posted by HappyPrtagee View Post
My airbags are properly adjusted and it feels more like a side to side slight shudder. Rig feels great over gradual dips but goes “ bam” on potholes. I have 90K on it and not a ton of service information. Looks like I have original front end components. Airbags are Firestones so I assume at least changed once.

Assume you have an Alpine coach, but you might want to list your coach info in your signature or in your posts.

You mention "airbags are properly inflated". But airbag pressure is controlled by the RIDE HEIGHT VALVES and pressure itself is not adjusted on an air suspension diesel pusher.


Have you check for play in the front end. Easy to start-- with engine off, just have someone turn the steering wheel back and forth while you check each connection for play between steering column and the right front wheel.


Also, check that the new shocks are properly torqued.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is offline   Reply With Quote
Old 07-28-2021, 03:52 PM   #4
Junior Member
 
HappyPrtagee's Avatar
 
Join Date: Aug 2020
Posts: 12
Thanks Brett and yes it’s Alpine 38. I did mean ride height versus pressure on adjustment. I have to admit I didn’t take torque specs seriously when I installed shocks. Can it make a big difference? I just tightened them without much regard to the rubber bushings. This started when I installed Konis. What is my other brand choice in front if I determine that the shocks are too harsh? I will torque them properly and check for play. Easiest place to find torque numbers?
__________________
HappyPrtagee
HappyPrtagee is offline   Reply With Quote
Old 07-28-2021, 05:07 PM   #5
Senior Member
 
Join Date: Oct 2014
Posts: 3,337
What Koni shocks did you install?
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is offline   Reply With Quote
Old 07-30-2021, 11:26 AM   #6
Junior Member
 
HappyPrtagee's Avatar
 
Join Date: Aug 2020
Posts: 12
I installed Koni 99B 3209 shocks on front. The rig had Monroe’s that I pulled off. I live in my rig so it’s worth it for me to spend a few hundred on more forgiving option but cannot find a part number for comparable Bilstein, Monroe or Rancho shock that will work. My tie rod ends feel tight. Just feel that these shocks are too strong. Preferred feel of Monroe’s but just tossed them when I installed Konis. Previous owner had dementia so got very limited information on rig history. The Koni 8805-1021 is no longer available and Bilstein is telling me they have no aftermarket shock. Monroe’s would be fine. Most of my miles are local, it’s my house.
__________________
HappyPrtagee
HappyPrtagee is offline   Reply With Quote
Old 07-30-2021, 11:29 AM   #7
Senior Member
 
Join Date: Oct 2014
Posts: 3,337
Those 99 series Konis were just right for our 2003 Alpine 38'FDDS. Controlled over the large bumps without adding harshness over the small ones.


And, don't believe that shocks will affect: "...feels more like a side to side slight shudder"
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is offline   Reply With Quote
Reply



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
Potholes, Expansion Joints & Slammers Captain KC42 Class A Motorhome Discussions 72 12-31-2019 09:54 AM
Potholes in the Hwys & Frwys? happycookin Camping Locations, Plans & Trip Reports 2 07-27-2018 06:31 PM
Newmar 2002 Dutch Star Allison 3060 transmission shuttering workamper306 Newmar Owner's Forum 10 12-11-2017 06:24 AM
Shuttering. Not really missing, just shuttering. tstep Ford Motorhome Chassis Forum 18 10-03-2017 06:15 AM
Loud clunk/clank driving over potholes? Wannabe Monaco Owner's Forum 9 06-17-2012 07:42 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:50 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.