rebound damping screw loose ? hard rebound damping ? - Triumph675.Net Forums
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post #1 of 13 Old 02-10-19, 22:25 Thread Starter
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rebound damping screw loose ? hard rebound damping ?

got my forks back from the shop ... had the seals replaced.
...
now, after putting the bike back together, something is wrong ?

REBOUND damping is super hard
... it now has only 7 clicks of rebound damping adjustment available.
Before, it was set at 9 clicks out ... pretty sure it had much more than 9 clicks available
(how many clicks of rebound damping adjustment does a 2006 triumph 675 have ?)

In addition, the adjuster screw is "loose" .... I can pull it out and easily move it up and down ....
... was it always this way ? is it supposed to be ? See pics .... second pic is before removing forks ....
... first pic is after seal replacement - rebound adjuster screw can easily move up and down ...

Any idea what the mechanic did wrong ? can they fix it without removing the forks ?

Can I safely drive it on the freeway for 25 miles to take it to them ? ... or do i have to take the front end completely apart again ?

just saw this in mgfchapin's fork seal post:
". I know the factory manual says to fill to 72mm but the first time I changed my fork oil I filled to that level and the bike was un-ridable because the forks would hardly compress. I gradually took out fluid and it started to feel good again at 110mm. I have since learned that Dave Moss recommends a level of 110mm and Thermosman (the East Coast suspension guru and one of the heads of Ohlins USA) recommends 120mm in our forks."

this sounds like how my forks are behaving .... i can hardly compress them ...
.... the mechanic was told 115 mm ... I wonder what he set it at ...

Go Fast, Take No Chances !

Last edited by Faster675; 02-10-19 at 23:20.
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post #2 of 13 Old 02-10-19, 22:37 Thread Starter
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pics added

is the rebound screw supposed to move up and down ?
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Last edited by Faster675; 02-10-19 at 23:22.
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post #3 of 13 Old 02-10-19, 23:53
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The rod was installed incorrectly. Do not touch the adjustment any further as it can cause damage, bring the fork back and have them fix it.
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post #4 of 13 Old 02-11-19, 10:06 Thread Starter
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damping rod install incorrect

Thank you !

... do the forks have to be removed to fix the incorrect damping rod install ?

... if not, is it safe for me to ride it to the shop ?

Go Fast, Take No Chances !
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post #5 of 13 Old 02-11-19, 10:46
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I just did a quick glance at the thread. Unless I missed something you got the correct answer. They need to come back apart.
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post #6 of 13 Old 02-11-19, 11:39
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Quote:
Originally Posted by Faster675 View Post
Thank you !

... do the forks have to be removed to fix the incorrect damping rod install ?

... if not, is it safe for me to ride it to the shop ?

Do not ride the bike. The rod that controls the oil flow inside of the valve is not installed correctly. Remove both forks again and have them look both over, its possible you have internal damage now and that will need to be fixed but you have to have them pulled apart and inspected.
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post #7 of 13 Old 02-11-19, 23:45
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The forks need to to come apart so yeah it would be best to remove them. As for damage itís possible if the damping rod lick screw comes off since thatís what it sounds like is not in the correct posistion.
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post #8 of 13 Old 02-12-19, 12:00 Thread Starter
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rebound screw moves up and down ?

Thank you again for all the help guys !
....
Just to be sure (before i speak with the mech) ... the rebound adjuster screw is not upposed to be able to "move up and down freely" by grabbing it with my fingers and pulling it up and down about an 8th of an inch ? (as shown in the two pics)

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post #9 of 13 Old 02-12-19, 14:30
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Quote:
Originally Posted by Faster675 View Post
Thank you again for all the help guys !
....
Just to be sure (before i speak with the mech) ... the rebound adjuster screw is not upposed to be able to "move up and down freely" by grabbing it with my fingers and pulling it up and down about an 8th of an inch ? (as shown in the two pics)

Absolutely not
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post #10 of 13 Old 02-18-19, 11:13 Thread Starter
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again, Thank You !
...
Your assessments of this problem were basically spot on .... Even though I brought my forks to them initially, my mech came by on Sunday, checked my bike, saw that something wasn't right and said he would take it back to his shop, take it apart, and fix it ... which he did ! (no charge)
... again, symptoms were hard forks, and rebound screw limited to seven clicks (when it was 18 or before) .... Turns out, you must tighten (loosen ? ... not sure which way i heard) the rebound damping screw fully before adjusting the lock nut on the rebound damping rod. After the mech did this, forks are fine, eighteen clicks of rebound damping adjustment, and no more stiff forks ... i will re-check all torques, and take her for a test ride soon.

Go Fast, Take No Chances !
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