Another PMT question


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AhhHellGoldwing
Posts: 5
Joined: Sat Aug 25, 2018 8:08 am
Location: Ray, OH via Yorktown, VA
Motorcycle: hopefully a 2002 GL1800A

Another PMT question

Post by AhhHellGoldwing »



I have not called Progressive as of yet. I thought I had figured out what my issue was but after researching more I am still stumped. So Back in February a buddy and myself installed the complete Progressive setup. PMT's up front with new All Balls bearing in the steering stem, Rear Progressive spring in the rear. The rear rides great. I did the fluid top off before hand and since I added the spring I ride around on 0 all day long. Just me riding at 225pounds. Now, the front rode great in the beginning. I did bottom out hitting a dip in the road on the test run but thought nothing of it as it was a significant dip. Now I feel like I am plowing through the air. Back feels higher than the front, I hit the brakes and the anti dive is not working again and I bottom out the suspension. I took the liberty of doing spring sag and I have roughly 2 25/32" of sag with my full extension being 5 15/16". My buddy thought we figured the issue out in being it was no enough fluid as Manual calls for Left 526.5-531.5cc Right 482.5-487.5cc. I found my instructions for the PMT's and it says Left 330cc and Right 200cc. So if that is correct that is the amount of fluid I have in it. Going in a straight line it rides nice and smooth, Bumpy roads I can tell it is dampening but I am worried I will bottom out again as I have once or twice since test run and I have about 1k on the suspension since upgrade.

Anyone have any thoughts? My kit did not come with any spacers so I have none installed. I also only reused the Teflon seal I replaced all other bushings and fork seals.



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keithg64
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Location: Geneseo, IL
Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Another PMT question

Post by keithg64 »

It could be that one of the pmt lost or didn't have a gas charge in it. Also the oil should be set by height more than quantity. And isn't the anti dive disabled with a mono shock installe ?

I have the progressive springs and not the pmt in my bike so there's that.
It's not what you buy, it's what you build.

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keithg64
Posts: 713
Joined: Thu May 21, 2009 9:47 pm
Location: Geneseo, IL
Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Another PMT question

Post by keithg64 »

Here is a write up from a couple of years ago, it may help.

https://gl1800riders.com/forums/5-gl180 ... rings.html
It's not what you buy, it's what you build.

AhhHellGoldwing
Posts: 5
Joined: Sat Aug 25, 2018 8:08 am
Location: Ray, OH via Yorktown, VA
Motorcycle: hopefully a 2002 GL1800A

Re: Another PMT question

Post by AhhHellGoldwing »

I called progressive, i will remove and send them back for inspection.

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keithg64
Posts: 713
Joined: Thu May 21, 2009 9:47 pm
Location: Geneseo, IL
Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Another PMT question

Post by keithg64 »

Let us know here how it goes with progressive.
It's not what you buy, it's what you build.

AhhHellGoldwing
Posts: 5
Joined: Sat Aug 25, 2018 8:08 am
Location: Ray, OH via Yorktown, VA
Motorcycle: hopefully a 2002 GL1800A

Re: Another PMT question

Post by AhhHellGoldwing »

Will do, hopefully good considering I have had them for 6 months and less than 1500 miles.

AhhHellGoldwing
Posts: 5
Joined: Sat Aug 25, 2018 8:08 am
Location: Ray, OH via Yorktown, VA
Motorcycle: hopefully a 2002 GL1800A

Re: Another PMT question

Post by AhhHellGoldwing »

OK finally got time to remove my PMTs. I was sitting 2 7/8" from lower triple tree clamp to top of rubber seal, also found the left side anti dive side to jave what looks like grease drizzled over the end of it. I will try to post pics. I also found the new bushing I installed to have failed as well.
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AhhHellGoldwing
Posts: 5
Joined: Sat Aug 25, 2018 8:08 am
Location: Ray, OH via Yorktown, VA
Motorcycle: hopefully a 2002 GL1800A

Re: Another PMT question

Post by AhhHellGoldwing »

So, guy at Progressive says new set will be sent out next week. One of the tubes (left side my guess) leak nitrogen out. So getting a fresh set sent to me.



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