I recently had my 940 drivers door detent spring snap.
Volvo hinge 9244768 NLA. 700/900 /V90/S90
I found a used hinge in good condition and replaced.
It had some wear on the detent spring and the shoulder studs that hold the two detent cams.
My Volvo trained tech friend had greased the hinge cams for me,
but now I see there's more to servicing those old hinge detents.
The detent cams can freeze up. You'll get a clue if you hear a snapping
noise when opening the door. If the cams are free and greased they're quiet.
Once the cams bind up, they start cutting through the spring.
when the wear gets severe the shoulder rivets holding the detent cams also
start cutting a groove in the spring just above the detent groove.
I was surprised to find that my spring did not snap at the wear groove at all
but at the very top of the spring.
There's what looks like a short stainless sleeve at the back of the spring
up top where its staked into a groove in the hinge bracket. It looks like
mine had seized up there helping the spring to snap since it could not twist
over it's full length. Some mystery oil and working it back and forth had it
free as a bird in seconds.
So there's another spot that needs mystery oil followed by a drop of machine oil.

www.swedishcarparts.com sells a hinge spring #1355200-S for 200 series but they
dont know if it will work with 700/900. It looks like the same spring to me.
Has anyone used this spring in the 700/900?

https://swedishcarparts.com/parts/search?utf8=%E2%9C%93&search_text=1355200-s

They say that they have the spring made in the USA and that they sell a lot of them.
I haven't run across any posts about that, so maybe it's some dealers using them?

I've got my old hinge and trying to get the cams free, They have been soaking in MMO and freeing them up in the car seems a problem. One of the shoulder rivets for the cams is loose where it's staked into the hinge bracket. Dunno if it can be tightened up OK with a BFH and a cold chisel or not.

The shoulder rivets must wear from the hardened detent cams. So rebuilding a hinge may require new shoulder studs. For someone with a machine shop it would be easy to make new hard/ SS shoulder screws that could be installed with a SS keeper nut. Maybe not if the keeper nut has a larger OD than the shoulder rivet,
you need clearance to the detent spring.

Phil? Maybe you know someone?

The takeaway from the above is that if you are hearing clicks and snaps, and in Phil's case, if his wife is hearing clicks and snaps when he opens the drivers door, (or any door) it's time to clean and free the detent cams and get mystery oil into the cams & spring sleeve until the noise is gone. Then put the grease to the detents, and a drop of oil on the detent spring sleeve.
Then you'll get more mileage out of that geriatric spring.
This beats replacing the hinge, which is a pain you know where.

Happy motoring, Bill

The recommendation in another Volvo forum is to get a used 940/740 rear door hinge that will be considerably less used and swap the spring out of it. Apparently it's not hard to do. Although the hinges are different left/right, they're the same back/front. The springs are apparently all the same.

My part lookup says the left door spring hinge is p/n 9447268 (item 6 in the fiche), a slightly different p/n from the 9244768 you mention. NLA, of course. Fitment is as you note, 700/900 and 90 series for the left lower hinge.

If the spring (staple as it's sometimes called)) was interchangeable with the 240 ones then I imagine someone would have noted it somewhere by now, but it would certainly be interesting to find a 240 and measure the spring profile as the Volvo engineers could easily have used the same spring. Having said that, the 240 spring kit you found from Swedish Car Parts in Illinois as their p/n 1355200-S is prohibitively expensive at $45 for just one little spring.

My springs aren't noticeably worn, but may be getting weaker with age and the hinge roller detent notches are getting a bit shallow and the rollers are a bit wobbly on their shaft. I always keep them well greased so they now barely hold the driver door open on an uphill slope. I used to occasionally grease the trunk hinges just like dealer service did when I had sedans. Those can be a bit tricky to get to. I should remember to grease my tailgate hinges one of these days.
--
Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now

Hi Dave,

I had one of the springs out and it went back easily.

Maybe the difference 200 to 700/900 springs is that the 900 has a short stainless sleeve up top where it sets in the slot to be staked.
If the cam & sleeve seizes then your spring is a goner that's what happened here. Do 240's have that SS sleeve on the spring?

I think hearing clicks and snaps when the door opens is the major finding.
That means the cams are frozen and judging from the old one that I'm playing with you'll need to hit it every day with a drop of MMO for days to get that grunge loosened and washed out of the cams. I put a little gear oil on the top of the cams first to get on the shoulder rivet, then packed the cams with Mobil-1 synthetic grease, being careful to seal just under the rivet heads with grease to keep the weather out.

You could swap springs if you had a used hinge, it's a non-starter to swap one out of your car, unless you need a new hobby fooling with doors all around.

The good news is Swedishcarparts has replacement springs The bad news is
it's $45 PLUS maybe $10 shipping + tax and no SS sleeve, which isn't a big
deal as you could re-use the old one.

It is good to know about in any case.

Cheers, Bill