Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. -Wikipedia

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7
votes
2answers
593 views

what are the advantages of upside down forks

Recently I have come across many bikes which have upside down front forks. From browsing around the internet , I was not able to get a concrete answer for why it is preferred over conventional ...
3
votes
1answer
599 views

Why is my 2004 BMW z4 front suspension making noise?

Every time I go into rough terrain, specifically bumps or speed bumps, there is a thud sound from the front end. Thinking it might be the bushings but I'd prefer not to purchase without confirmation.
5
votes
2answers
483 views

Clunking Noise from Rear, Right Tire when hitting bumps

I have a 2003 Ford Taurus SE with ~95000 miles. It has been a very cold and harsh winter in New England. Recently, I have been hearing a clunking noise in the rear, right tire region when hitting ...
8
votes
1answer
156 views

Ohlins Rear Motorcycle Shock - How do I setup, care for and tune it?

I have a 2005 GSXR 600 I'm getting on the road. I bought an Ohlins rear shock for it and ordered the spring to match my weight. I can't figure out the low/high speed or the rebound/compression ...
10
votes
2answers
809 views

What bolt is a replacement for the front sway bar bolts on a 2004 Subaru WRX wagon?

In replacing my worn-endlinks recently with lovely Kartboy pieces, I noticed that I had a seized bolt in one of the rear links. I was able to get a short-term replacement until I order a new Kartboy ...
3
votes
0answers
50 views

What Damage may Accompany a Broken Axle

I was looking at buying a 98 Honda Shuttle with a broken right side axle, and was wondering what other damage I should keep my eyes open for which might normally be seen together with a broken axle.
10
votes
2answers
90 views

Do I need to replace both front struts if one is OK

I have a car that is 7 years old and unfortunately hit a curb which bent the front strut on the drivers side. Do I need to replace both struts? Or just the damaged strut? It is similar to this ...
8
votes
2answers
778 views

Motorcycle chewing through too many front tyres

I have a Y2K Triumph Speed Triple that has an excessive appetite for front tyres. It eats two front tyres for each rear tyre. This is reverse what it should be. I run the tyres at about 38 PSI and ...
8
votes
1answer
83 views

How do I get the sway bar link to line up with new strut and spring?

I am swapping the struts and sway bar links on a 2006 Toyota Sienna AWD. I got the first strut in place and started to put the sway bar link on but it does not want to line up with the mounting hole ...
5
votes
2answers
1k views

How to improve suspension on my 2005 Volvo S60?

I recently purchased a 2005 Volvo S60. The car runs great, but I've discovered that the suspension feels a bit stiff. When I go over a bump, I get shaken up a lot more than I do going over bumps in ...
7
votes
1answer
107 views

Displacement sensors for car wheel and datasheets

Probably title says it all, but I am on my design work for car suspension and cannot find a good displacement sensor for each of the wheels of the car. I tried to look up for accelerometers, which can ...
5
votes
1answer
50 views

What Front End Work Requires an Alignment Afterwards

What Front End Work Requires an Alignment Afterwards and in what case can you take measure to avoid having to do an alignment? For example the Haynes manual says you can mark the strut mount and the ...
4
votes
1answer
114 views

Fork tube seals Suzuki sv650

So I recently inherited a 2002 Suzuki sv650... It was garage kept for about 6 years and needs some love. I noticed that the rubber seals on top of the fork shock tubes won't stay with the tubes... ...
7
votes
1answer
66 views

Magnetic Active Suspension or Magnetorheological Damper

GM developed magnetic dampers for the Corvette several years back. What is magnetic active suspension and how does it work? I understand there is a magnetic fluid in the shocks but how, deep down, ...
5
votes
2answers
212 views

How to replace balljoint?

Out of curiosity, how does one go about replacing the balljoints in a car? Specifically the rear toe arms from a 1995 Mitsubishi Eclipse? I've got a set of good condition rear arms that have suspect ...
11
votes
3answers
425 views

How Urgent is it to Replace Worn Out CV Boots

I recently noticed that what I think are the inner CV boots on my 99 Nissan Almera have started coming apart: They were still in one piece this past August when I took the car for inspection, so ...
2
votes
1answer
167 views

identify suspension leak on motorcycle

Especially after a good cleansing when there is no visual signs of a spil, I found it hard to detect problems with oil leaks/levels. Usually I can feel low levels in a rear mono suspension when ...
6
votes
1answer
53 views

Identifying Suspension Parts on my Mazda 626

This is a continuation of my question regarding What to Check When Replacing Struts, but specific to my 98 Mazda 626 2L. I want to make sure: I've correctly identified the parts What is their ...
12
votes
3answers
2k views

What are the Advantages of a Single Side SwingArm on Motorcycles?

I have noticed that Ducatis , Honda and Triumph have bikes with a Single Sided SwingArm Much like most of the scooters. Are there any advantages of following this design , if so why are not all ...
4
votes
1answer
691 views

What can be done about noisy spring seats?

On a MacPherson strut car, sometimes the springs of the front suspension will bind in their seats, and when turning the wheel sharply at low speed (or at a standstill) you end up with a kind of "bung, ...
11
votes
4answers
18k views

How to diagnose high speed vibration?

I get a vibration at high speeds (50+), can feel it particularly in the steering wheel, front seats, dashboard. I have been trying to figure out what's going on, keeping in mind that: All 4 shocks ...
10
votes
0answers
87 views

1968 Beetle Front Shocks (Koni)

What are the correct size Koni front shocks for a 1968 Beetle at stock height? I purchased the (red) Koni D 80-1787 which Koni's site recommended as a stock shock replacement. My mechanic says ...
4
votes
1answer
53 views

Coil Spring Load and Ride Quality

Is there a difference in coil spring load between different engine options for the same model truck? For example, I have a 1993 C1500 with a 5.7L. Can I use coil springs from another 1993 C1500 but ...
2
votes
1answer
3k views

How to determine the compressed height of a spring?

I am looking at replacing the springs on my vehicle and am trying to get stiffer springs while avoiding a major change in ride height. With my vehicle, one of the old common ways to do this was to ...
7
votes
1answer
142 views

What makes a worn car shock spongy and soft?

I'm unfamiliar with car shocks. In motorcycles many rear shocks are charged with nitrogen which acts like a spring. I've seen motorcycle shocks that I've rebuilt have the correct amount of nitrogen ...
4
votes
1answer
54 views

Wheel Positioning - Camber and Toe

I have a baseline of information regarding camber and toe. Why would I add more or less camber to my wheel unless I'm a NASCAR drivier making only left hand turns and want better traction for that ...
6
votes
2answers
187 views

1988 Jeep Wrangler - How do I do a DIY alignment?

Have a friend with a '88 YJ. He wants us to tackle an alignment job on it. It's pulling to the right. We can see the rear axle is not aligned and tire rubs on one side. It looks like it might be ...
3
votes
1answer
58 views

How to remove front forks on motorcycle

I've got my motorcycle up in the air about to pull the frame up off the engine but I need to remove one last thing. I got everything taken apart except this center bolt holding the front forks on. ...
5
votes
1answer
199 views

Differences between pullrod and pushrod suspensions - Pro's and Con's

Can someone please explain the differences between a pullrod and pushrod suspension and provide the pro's and con's of each configuration? Typically these suspensions are used on open wheeled ...
6
votes
1answer
108 views

Load on bed of pickup for extended period of time

I just got a Toyota Tacoma 2012 Sport long bed. I'm an artist and I make driftwood horse sculptures. I have two horses on the bed of the truck currently which comes to about 500 lbs. I intend to ...
3
votes
1answer
3k views

Motorcycle Front Forks: Fork tube stuck in bottom pipe - clunking sound when trying to remove

I'm rebuilding the forks on my CB400 project bike [ turning into a street tracker ;) ] The process from the manual is pretty straight forward: 1) Remove the front fork bolts and drain oil 2) With ...
4
votes
2answers
4k views

Bent front fork on a bike

There's a previously owned 2009 YAMAHA FZ16-S that I'm thinking of picking up. It has a slightly twisted and bent fork (plausibly caused by an accident). It's only apparent when you ride it for a bit. ...
1
vote
1answer
37 views

'04 Echo shock mounts, Type A vs Type B

So I'm noticing quite a bit of rust on my strut and near the mounts, and I was thinking about doing this myself. So when I dig into the service manual, and possibly ordering parts, I found a not so ...
2
votes
1answer
437 views

Consequences of failing to replace bad struts and sway bar bushings

My car is kind of a beater and I don't want to pour money into it. Apart from a bumpy ride, is anything really bad going to happen if I don't replace these parts? For example, will this put a ...
1
vote
1answer
140 views

How do I stop my shock spring from rubbing?

I replaced the passenger side front shock on my 2009 Mazda 5 almost a year ago. It has been making noises, and upon inspection I see the coil is rubbing on the nearby metal. I don't know how to ...
3
votes
0answers
47 views

Terminator 2 1990 Harley Davidson Fatboy FLSTF technical information [closed]

I am doing a project for class about the Harley Davidson Fatboy, and I need to find the values for the spring constant of the bike used in Terminator 2, and whether or not it used a custom suspension. ...
2
votes
0answers
60 views

How involved (crazy) is it to lift my Pontiac a couple of inches?

I'm a pretty experienced DIY-er, but I'm not familiar with the process for lifting a car. How involved is the process for just 2-3 inches, and can it be done for a vehicle that doesn't necessarily ...
6
votes
2answers
241 views

GSX-R front suspension technology timeline

I have noticed that people frequently choose the GSX-R front end for a front end conversion on old bikes to improve handling and comfort. The GSX-R was produced from 1985 through the present, and I'm ...
1
vote
1answer
629 views

Clicking noise when starting from low speed, going over bumps

I have an '04 Echo that had the sway bar link replaced. However, a new annoying sound has developed. It usually happens when I'm starting from a dead stop, or going over bumps at low speeds. The sound ...
7
votes
4answers
3k views

Alignment is out of spec a tad - should I worry?

So I bought new tires recently for my 2002 Nissan Sentra and wanted to make sure that my alignment would not eat them up. Even though effectively my entire suspension/axle system was overhauled ...
3
votes
1answer
50 views

Repeated rear bearing hub assembly failure

('04 Cavalier; 120K miles) I'd been having a whining noise on (highway) left turns. I found significant play in the right rear hub assembly, which I replaced. In less than 200 miles, the same ...
1
vote
2answers
184 views

Does “bumping” up and down a kerb damage my car?

My driveway does not have a dropped kerb, so every day I have to bump up and down the kerb. Does this do any damage to my suspension or tyres doing this every day? If I do it quickly (say at 5mph), ...
2
votes
2answers
850 views

Does hitting the exhaust on bumps (Bottoming Out) damage my car?

I see hundreds of exhaust scrapes on speed humps and things, or general gashes in the direction in which cars travel over them. Does hitting the exhaust on bumps damage the car? It's probably ...
1
vote
2answers
1k views

severe tire shake at highway speeds under acceleration

I have a 2005 Honda Odyssey with 201000 miles. At speeds above 60mph there is a heavy vibration from the front wheels. It is gets worse when accelerating and will smooth out immediately upon lifting ...
2
votes
1answer
137 views

Is it safe to lower the S550 (2015+) Mustang by 1" in the northeast US?

I have seen 5.1" and 5.9" listed as the ground clearance on the S550 (2015+). I don't know which is true, but I would like to lower the one I have ordered by 1" to improve handing. Is this safe to do ...
2
votes
2answers
297 views

How to make ride less bouncy?

In my 2003 Opel Agila, the ride is really bouncy. Whenever I go over bumps in the road, it feels like I am almost out of control. It is generally a bouncy car, but it this one seems to be worse than ...
2
votes
2answers
3k views

Crackling/popping when wheels move at slow speed (e.g., rolling forward in drive)

My suspicion is that there is something loose (pebble, rock, or some other small, foreign object) behind the hub cap, but I hear a crackling or popping sound (almost like Pop Rocks or Rice Krispies) ...
2
votes
1answer
1k views

Leaving heavy load on the back of a pickup truck

I was wondering if it is bad for a pickup truck to keep a heavy load in the back (e.g. 1800 lbs) for prolonged periods of time (e.g. 2-3 days), assuming the truck is not in motion. The disadvantage ...
7
votes
4answers
2k views

Car pulls to right when letting go of accelerator?

I'm driving an old Grand Voyager minivan temporarily, and notice that when I accelerate then let go of the accelerator, the car pulls slightly to the right, and I have to correct it by steering a ...
1
vote
3answers
77 views

How do I prevent bushing wear and what parts besides the suspension uses bushings?

I just did my upper control arm bushings on my Honda because it's lowered and I have an aftermarket control arm with camber adjustments. The wheel would pinch inward and send me toward the roadside. ...