Report on Armott replacement airbags

[bfeng]

As all have said, easy job for DIT types.
One month later, a small annoyance. One side loses a bit of air every night but not the other. I leak checked the distribution block (where I bled out the pressure), and I know those connections are tight. I suspect the self sealing push in connnection at the airbag itself may not seal as well as the OE compression fitting. In particular I regret not cutting off 1” off the air lines so the part going into the Arnott bags didn’t have the slight indentations from the old BMW fitting. I’m not going to redo as it only takes the pump about 15 sec to fill it up each morning. If it gets worse when I have a 600lbs trailer tongue on there all day then I’ll get in and replace that one bag.

[pshovest]

Originally Posted by bfeng

.......I’m not going to redo as it only takes the pump about 15 sec to fill it up each morning.........

You might want to check the cost of replacing the air pump. Operating this way will certainly shorten it's life.

[bfeng]

Thanks for the tip. I’m hoping 15sec a day is within the design duty cycle of the pump. It’s also covered under an extended warranty. I might pickup a good used one and throw it in the race trailer to cover me for a mid-trip failure.

[Nanniepoo]

Hmmm. 4 years with the Arnott bags now and have never noticed any sagging. Even after sitting for weeks, if not months, since the wife is teleworking and not driving.

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[bfeng]

Are you saying that after months of sitting the pump doesn’t need to run at all?

[Nanniepoo]

Originally Posted by bfeng

Are you saying that after months of sitting the pump doesn’t need to run at all?

Correct. I don't believe the pump runs at all. The rear definitely hasn't lowered to my eyes at all.

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[bfeng]

Originally Posted by Nanniepoo

Correct. I don't believe the pump runs at all. The rear definitely hasn't lowered to my eyes at all.

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Even when I first got the car, I would hear the pump run if for example I put a 400 lbs twink motor in the back, or if I parked on a slanted drive way overnight, or if my grown kids got I to the send row.

[NoThanks]

If you have to get the pump cycling every day because of this leak then you might not enjoy a long life on that compressor. I might be wrong but set duty cycles aside and consider the frequent exercising will shorten the calendar life of your pump because it is still wear and tear on the pump internals.

You might reconsider and go ahead and correct the problem since the 40 minutes you need to do so is less time and less expensive than dealing with compressor replacement.

just a 2nd on the previous suggestion from pshovest.

[kaleb]

Originally Posted by bfeng

I’m not going to redo as it only takes the pump about 15 sec to fill it up each morning. If it gets worse when I have a 600lbs trailer tongue on there all day then I’ll get in and replace that one bag.

I say redo it. You know how easy it is and you don't want to work the pump too much.

[Black-Forest]

Just installed a pair yesterday. I did cut off about 1/2" of the line in fears of those ridges being problem. All good this morning.