Ducati Monster Forum

Moto Board => Tech => Topic started by: bdfinally on August 11, 2017, 09:07:03 AM

Title: Steering head pinch bolt
Post by: bdfinally on August 11, 2017, 09:07:03 AM
How in the world do you get to that with removing a metric ton of other shit?


https://flic.kr/p/X1BQvh
Title: Re: Steering head pinch bolt
Post by: Speeddog on August 11, 2017, 09:33:11 AM
Shorten a standard L-style allen wrench, be careful to not overheat it in the process.
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 11, 2017, 09:36:09 AM
You mean cut it off with a dremel, but don't distort the profile at the cut? Do you know what size that is?
Title: Re: Steering head pinch bolt
Post by: booger on August 11, 2017, 10:29:34 AM
The WFMC Super Deluxe Mini Ratchet Tool Set 4 is what you need, everyone should have one of these. Solve all your problems and make life easier now and in the future. You will find many uses for this kit. Pay for itself in no time.
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 11, 2017, 10:33:09 AM
(http://i.imgur.com/9u1hqPU.gif)

Holy crap I thought that was a goof, turns out it's for REAL!

(https://images-na.ssl-images-amazon.com/images/I/51TrCYEMnhL.jpg)
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 11, 2017, 11:45:19 AM
It's a 5mm, although a tinch loose (might be the cheap quality.) 5.5 won't fit in there tho. How tight should it be, because a cursory tug on it tell me it might need some PB Blaster and a wack after being in there for 17 years.
Title: Re: Steering head pinch bolt
Post by: Speeddog on August 11, 2017, 03:54:02 PM
Yes, 5mm hex key, cut with an abrasive wheel.

Likely quite tight after that long, spec is 17 ft-lb.
PB is magical stuff, nothing to lose.
Title: Re: Steering head pinch bolt
Post by: Derekv on August 12, 2017, 03:44:06 AM
https://www.amazon.com/Wera-056490-Tool-Check-Ratchet-Sockets/dp/B00I8MYMT2/ref=sr_1_1?ie=UTF8&qid=1502534577&sr=8-1&keywords=Wera+ratchet+set

Makes for a great underwear kit as well.

Derek V
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 12, 2017, 07:52:12 AM
Nice tools, but I don't think they would have helped in this case. I cut down the allen to 3/4 of an inch & it barely clears the space.
Title: Re: Steering head pinch bolt
Post by: koko64 on August 12, 2017, 08:08:08 AM
You'll be greasing that bolt when you put it back. ;D
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 12, 2017, 03:53:23 PM
Voice of experience?
Title: Re: Steering head pinch bolt
Post by: koko64 on August 12, 2017, 04:07:17 PM
I've been lucky but I grease every bolt I deal with.
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 13, 2017, 04:58:18 PM
Amazingly it came out. Soaked overnite with PBBlaster and then again this morning and given a good wack with a long drift and soft mallet.
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 16, 2017, 06:33:09 PM
Last couple of questions. I cut the cage off the stem tonite and after trying several different points of attack, got the inner race to bend to my will. There's a large metal ...washer between it and the bottom triple. The replacement bearings came with seal (metal/rubber.) Use both when I reassemple or just the supplied one? Also I pretty sure the lock nut goes flat side up, but need confirmation of that.

The culprit and the washer

https://www.flickr.com/photos/58528462@N00/36450405952/in/dateposted-public/
Title: Re: Steering head pinch bolt
Post by: Speeddog on August 16, 2017, 08:02:37 PM
Which supplier did you get the bearings from?

I've seen sets that had a rubber/steel seal.... that had *way* too big hole in the center.
And the seal part was tall enough to get squished up against the outer race.

Mock it up prior to driving the inner race onto the stem.
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 17, 2017, 05:14:48 AM
The bag was branded Speedymoto, got them from motowheels. The seal hole is a little bigger than the stem. Seal opening measures 1.1675".  Inner race is 1.0135"

(https://www.speedymoto.com/s/cc_images/cache_884289585.jpg?t=1393876257)
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 21, 2017, 06:35:14 AM
What kind of "fall" am I looking for after putting it all back together. Right now, it's free moving and smooth, but I've seen some people saying a tap on the bars should let it move to the stops. It's not there now.
Title: Re: Steering head pinch bolt
Post by: Speeddog on August 21, 2017, 08:13:49 AM
I set 'em up with a little bit of drag.

Ride it a little, then check it.
There's 3 races that have been pressed into position, likely to be a bit of settling into final position.
Title: Re: Steering head pinch bolt
Post by: bdfinally on August 21, 2017, 10:40:05 AM
I'll give that a go. Thanks for the help, Dog [beer]