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Laverda Forum => Technical => Topic started by: maurice turner on September 27, 2020, 10:32

Title: forks topping out
Post by: maurice turner on September 27, 2020, 10:32
One of my marzocchi suspension Laverdas has started front fork topping I am wondering if I caused the problem by making a longer pre load spacer on top of the spring????
What actually stops the topping oil flow back through that primative valve, that short spring in the damper assembly?????
Can someone give me some guidance here?
Title: Re: forks topping out
Post by: CLEMTOG on September 27, 2020, 10:58
take the spacers out and see what happens, you are probably already on it, the extra pre load on the spring is probably causing too quick an extension.
CLEM
Title: Re: forks topping out
Post by: AndyW on September 27, 2020, 12:20
I had that problem with my mirage a few years back: cut the preload spacers in half to achieve about 35-40mm of Static sag and All was well once more..
Title: Re: forks topping out
Post by: Dave "SPIDER" Holder on September 28, 2020, 10:25
Didn't that make it sit lower at the front and make it a bitch to get on the center stand?
Title: Re: forks topping out
Post by: Piranha Brother 2 on September 28, 2020, 15:14
Isn't topping out an indication of insufficient rebound damping at near full extension? Would higher fork oil level alleviate it? Or heavier fork oil?
Title: Re: forks topping out
Post by: Haggis on September 28, 2020, 15:20
Or the rebound springs have sacked out and are now more or less solid - giving a harsh top-out. Unlikely but possible.
Title: Re: forks topping out
Post by: Tippie on September 28, 2020, 15:33
More preload shouldn't affect it Time for a look inside.
Title: Re: forks topping out
Post by: hooksey on September 28, 2020, 22:19
Probably Had a  damper rod piston nip up, and the whole caboodle has come adrift!

Time to pull em for a look see ;)
Title: Re: forks topping out
Post by: Legs on September 28, 2020, 22:58
Quote
I am wondering if I caused the problem by making a longer pre load spacer on top of the spring?
Think you have answered your own question Maurice.
Check your static sag; about one quarter of total travel unloaded and one third with rider.