What is axle tramp/hop? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Fordforums Community > The Pub
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

The Pub For General Discussion

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-10-2003, 22:13   #1 (permalink)
Registered User
 
subsbligh35's Avatar
 
Join Date: Aug 2002
Location: Brisbane
Age: 31
Posts: 499
What is axle tramp/hop?

I know it sounds pretty basic but I've heard the expression but don't know exactly what it means.

Cheers
subsbligh35 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-11-2003, 00:47   #2 (permalink)
Veteran Ford Member
 
Join Date: Feb 2002
Location: Searching for a new home
Posts: 3,657
These two aren't always exactly the same thing and there are a number of causes.

In simple terms axle tramp is what happens when a large dose of torque is delivered to the rear axle (such as a full bore launch) and the leaf spring (usually) deforms into an S shape and the spring rate increases exponentially until the wheel is actually bounced off the ground which in turn unloads the spring so the whoe cycle can be repeated until the torque is reduced sufficently and the spring stabilises.

Axle tramp can also occur any time one of the wheels becomes heavily unloaded or if there isn't sufficient suspension compliance to maintain road contact during heavy cornering.

It was always thought that axle tramp was the exclusive domain of leaf sprung rears but that hasn't proven to be the case.

That's not a very detailed explanation but it will do till I can write a tech article on the subject!

Cheers
Russ
russellw is offline   Reply With Quote
Old 05-11-2003, 04:03   #3 (permalink)
T5 Expert Operator
 
XR_Strider_GuY's Avatar
 
Join Date: Apr 2001
Location: 3Fb Skunk Works(JXR01 Dev)
Age: 34
Posts: 6,542
I found that axle tramp is not an easy thing to pin point as road surface has a great effect on whether a car axle tramps or not.

I found on my XR6 that on a certain bit of road where it's quite undulating, taking off full pelt induces axle tramp. But other times it's just alot of wheel spin but no axle tramp at all.

Oh yeah the feeling isn't good, feels like the diff, driveline gearbox is about to fall out of the car.
__________________
Motor May 2001 Quote: "Believe it or not, there are actually a bunch of weirdos out there who reckon a six cylinder is the dux gutz. Bugger it: I'm one of them" :s5

AUII Late Ed XR6 HP T5 Venom- Full Tickford Body Kit, 17in Wheels, Herrod Bi-plane Spoiler, Momo Steer/Gear, T-Series Interior Options, Premium Stereo and a very light-tuned 4.0L I6

(FPV-Tickford Club of NSW Member and Co-Founding Member of 3FB Inc, Ford Forums Food Bandits)
XR_Strider_GuY is offline   Reply With Quote
Old 05-11-2003, 04:51   #4 (permalink)
Registered User
 
Martin's Avatar
 
Join Date: Feb 2001
Location: NSW/ACT
Posts: 3,023
Mine seems to do it BAD in the wet from a stop if I give it some. Never happened in the dry though?
__________________
1993 ED XR6 M5 (1 of 329)
Polynesian Green
Turbo on the way!!
1993 EBII Fairmont (Now wrecking, PM if you want any parts)
1988 Nissan R31 Skyline
Martin is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Fordforums Community > The Pub



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
axle codes Nirvana7456 Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel 2 05-23-2003 05:37
ZF Lemforder to Supply Axle Systems to Ford CrossTrainer And Ford Five-Hundred From N Stacy94PGT Ford Taurus 2008+| Mercury Sable 2008+ | Lincoln MKS | Ford Five Hundred | Mercury Montego 0 08-05-2002 10:49
Axle tramp in AU XR8 with IRS ??? XR8chic Suspension | Wheels&Tires | Brakes 10 04-19-2002 06:45
need a 66 axle hawkrod Classic Thunderbirds 2 03-03-2002 18:50
rear axle noise dcrow Ford Mustang Forum 2 05-09-2001 17:01

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 04:17.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.