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98 V70 control arms - sub frame bolt orientation Topic is solved

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98v70dad
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98 V70 control arms - sub frame bolt orientation

Post by 98v70dad » Fri Oct 14, 2016 6:43 pm

I know that it probably doesn't matter much but for the two bolt control arms which way are the bolts supposed to go in...nuts forward, nuts aft or some other orientation? I've taken the control arms loose at the subframe once before and didn't pay attention when I took them off.

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Re: 98 V70 control arms - sub frame bolt orientation  Topic is solved

Post by scot850 » Fri Oct 14, 2016 11:18 pm

I have always fitted the nuts to the rear and Vida shows the bolts fitted from the front and nuts from the rear (although that is not always a 100% proof of point as I have found in the past). I have always done this on the -98 P80's with the 2 bolt control arms. I can't honestly think why it would make a difference as the bolt is only a pivot, but I've just followed convention!

Neil.
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Re: 98 V70 control arms - sub frame bolt orientation

Post by abscate » Sat Oct 15, 2016 5:56 am

The only complicating issue I can think of is to make sure the tire clears the hardware on full lock both ways.

We had a debate on strut bolt/nut placement and it turned out my original struts on the 1999 were bolted differently left/right!
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Re: 98 V70 control arms - sub frame bolt orientation

Post by BEJinFbk » Sat Oct 15, 2016 12:54 pm

Something worth considering:
When a car is moving forward, which end do the bugs collect on?

If a bolt head gets covered with crud, it's no big deal.
When a nut and exposed bolt threads get coated with
road debris, it's more of a PITA to get apart. Just sayin'.
'98 V70 R - Well Equipped for Life Up North... ;)

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Re: 98 V70 control arms - sub frame bolt orientation

Post by 98v70dad » Sat Oct 15, 2016 12:58 pm

Installed the the new control arms this morning .... nuts aft. So be it! The new control arms completely fixed my jiggling down the road at 65 to 75 mph. Hurray!

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Re: 98 V70 control arms - sub frame bolt orientation

Post by scot850 » Sat Oct 15, 2016 7:34 pm

I love to hear when others have successes after being frustrated trying to find the weird cause of a problem. It is always very satisfying when you get something like that figured out. So what next......, a long holiday somewhere warm with a few refreshments to get away from Volvo repairs!!

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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Re: 98 V70 control arms - sub frame bolt orientation

Post by sleddriver » Sat Oct 15, 2016 9:25 pm

98v70dad wrote:Installed the the new control arms this morning .... nuts aft. So be it! The new control arms completely fixed my jiggling down the road at 65 to 75 mph. Hurray!
Great news!
Cheers & Beers to celebrate!
1998 V70 T5 226,808 miles. Original Owner.
M1 10W-30 HM

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Re: 98 V70 control arms - sub frame bolt orientation

Post by j-dawg » Sat Oct 15, 2016 10:08 pm

BEJinFbk wrote:Something worth considering:
When a car is moving forward, which end do the bugs collect on?

If a bolt head gets covered with crud, it's no big deal.
When a nut and exposed bolt threads get coated with
road debris, it's more of a PITA to get apart. Just sayin'.
In a wheel well, does the crud come only from the front? I'm not sure that the direction of travel is the major influence on road-derived garbage in the wheel well.

But I agree that the best orientation is probably the one that's easiest to remove fifteen years down the line.
1999 V70 T5 5-SPD | ~270k mi | burns more oil than gasoline

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Re: 98 V70 control arms - sub frame bolt orientation

Post by 98v70dad » Sun Oct 16, 2016 11:32 am

Installed all of them nuts aft. As I initially indicated I don't see why it would matter much. I. too, thought about the crud from the front. For me it was more of an issue of fitting the wrenches I have in around all of the obstructions in the wheel well. Aft worked best for me.

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