Forum Index => The Garage => Topic started by: DTSNEO6 on October 12, 2020, 14:56:33
Title: Torsion Bar adjustment
Post by: DTSNEO6 on October 12, 2020, 14:56:33
For a couple of years off and on i have tried to get the front suspension height right. The drivers side is always about half and inch to an inch lower.
Do I need to keep adjusting each side to get it right or is this indicative of something broken?
Also what should i oil the bolts with before adjustment PB blaster or WD 40 or something else?
Title: Re: Torsion Bar adjustment
Post by: Ark on October 13, 2020, 04:13:41
PB is probably better, also you gotta hit them from the top because spraying the bolt heads from underneath won't get any on the threads.
Remember they're opposite, so the bolt head on the passenger side adjusts the driver's side height. Go a quarter turn at a time, lower the car, bounce the front end a couple of times to settle everything out and then measure. The big bolt heads for the subframe are a good reference point to measure from.
Title: Re: Torsion Bar adjustment
Post by: DobaMark on October 13, 2020, 05:45:48
If it's lower on the driver's side, only adjust the bolt on the passenger side to raise it (or on the drivers side to lower the passenger side). Once you think it's level, drive it a bit and recheck.
Once you get the height set properly, you should have an alignment.
Title: Re: Torsion Bar adjustment
Post by: DTSNEO6 on October 14, 2020, 17:51:53
I had tried and tried before and couldn't get it right.
Now,I just about had it them both even at 12.5 inches. Jounced and measured again at 12.5.
Then I took it for a drive, when i got back it settled back to 12 inches. But still about even on each side. I'm gonna leave it there.
I plan on switching tire size from 225 70 R15 to 215 70R15 here shortly ill adjust suspension again then.
Title: Re: Torsion Bar adjustment
Post by: lsm360 on October 14, 2020, 18:52:30
When you raise one side, it's also going to raise the other side but a little less. Don't think so? Try lifting your car under one wheel well by hand, and watch the opposite side. It will come up some too. I've actually tightened the bolt for the side I wish to raise, and slightly backed off the opposite side bolt in order to level mine. I've never needed to lube them, just jack the car when raising to remove weight.
Title: Re: Torsion Bar adjustment
Post by: lsm360 on October 14, 2020, 18:54:40
And 225/70/15 look really nice on M's.
Title: Re: Torsion Bar adjustment
Post by: DTSNEO6 on October 14, 2020, 21:23:30
I noticed that when you adjust one it slightly adjusts the other. I just think i finally got it sorted, kinda.
I followed the advice of raising the front end off ground to adjust, SSSSOOOO much easier to adjust them..lol
I'm a stickler for OEM, so i want to see what it feels like for the 215's instead of 225'
Title: Re: Torsion Bar adjustment
Post by: DobaMark on October 15, 2020, 05:16:05
Another problem can be the rear suspension. A sagging leaf on one side can cause a problem trying to get the front to sit even.
Title: Re: Torsion Bar adjustment
Post by: lsm360 on October 17, 2020, 10:56:22
i replaced my leaf springs a few years ago. Made a huge difference in the stance.
These cars look great with the proper stance. :cool:
Most definitely. I replaced mine as well. It's an AHB and from all the stuff that gets put in the trunk and rough treatment, I think they tend to wear quicker, despite the extra leaf.
Title: Re: Torsion Bar adjustment
Post by: chargincharles on October 18, 2020, 21:33:13
If you still have the rubber isolators on the frame you're chasing the windmill. Adjusting is very difficult as temperature and driving will heat them up and expand them screwing your adjustment. Swap for the poly isolators or do what you have already done and just get close. A alignment is required after your done as you've moved everything.