|
SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> How to loosen rotor bolt? RH or LH threads? /cgi-bin/YaBB.pl?num=1340148134 Message started by BuckRYCA on 06/19/12 at 16:22:14 |
|
Title: How to loosen rotor bolt? RH or LH threads? Post by BuckRYCA on 06/19/12 at 16:22:14 Clymers, in Rotor Removal/Installation in the Electrical System chapter, says to use a 36mm offset wrench to hold onto the flats of the rotor and then loosen, but do not remove the 17mm rotor bolt. (This is the very bolt that is accessed through the circular inspection port on the left side cover during a valve adjustment.) Racheting socket - no go. 17mm wrench with ball peen tapping - no go. Breaker bar and 17mm socket - no go. Electric impact wrench - no go. Next idea is to heat the bolt with a propane torch. Clymers says to use Red Loctite when installing the bolt on re-assembly. Maybe the factory does the same or equivalent? Any suggestions? Thanks. |
|
Title: Re: How to loosen rotor bolt? Post by Serowbot on 06/19/12 at 18:02:13 Have you been tightening it?... Lefty Threads... http://suzukisavage.com/cgi-bin/YaBB.pl?num=1299521066 Quote:
|
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/19/12 at 18:47:33 Oh, hell! Yes, I've been going counterclockwise on it. Clymer's doesn't say anything about it being left-handed, neither in the removal nor installation descriptions. Thank you, very much, Serowbot. I'll try going the correct (clockwise to loosen) direction on this LH bolt. I'll suggest adding this to the Suzuki/Clymer's Manual Errors link in the Technical Documents/Reference section. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/19/12 at 18:53:29 How tight did ya want that? Is it left or right hand threads? INside an engine, If it spins clockwise in use, left hand thread is common, Can you See any threads sticking out? If they go In & to your Left, its left hand thread. Unless you KNOw the design, dont think ya know., |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/19/12 at 18:55:53 I believe the rotor bolt rotates CCW during engine operation. That's the way that bolt is rotated to get TDC during a valve adjustment. No threads are visible. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/19/12 at 19:08:49 Dang,, thats odd,.., But, The crank does spin so the forward edge goes down,( cam chain is tight on the forward edge) Im glad Ive never had to pull the rotor,, cuz I would shafted myself. Ehh, maybe not, Im pretty big on that Suzuki shop manual. I look at everything before I walk off in it., |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/19/12 at 19:12:23 Yeah, my faith in Clymer's is slipping. Maybe I should spring for the SSM (Suzuki Shop Manual) as I'm about to split cases and rebuild a transmission -- both for the first time. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/19/12 at 19:18:10 You are a brave man, Work area prep & disassembly in a planned manner, laying parts down in order, paying close attention to which side faces out, or in, as long as you stick with the same approach. Some like their music while they work, I dont, I want to concentrate & I want to hear anything that hits the ( clean) floor. You have my respect & best wishes & a complete Lack of envy. |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/19/12 at 19:26:32 Good advice, thanks. I'll keep the Forum posted as I make the attempt. No doubt asking for advice along the way. This Forum is really a valuable resource. |
|
Title: Re: How to loosen rotor bolt? Post by verslagen1 on 06/19/12 at 19:53:54 you'll need a flywheel puller when you get that bolt off. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/19/12 at 19:59:00 Vers, why is it L/H thread? |
|
Title: Re: How to loosen rotor bolt? Post by verslagen1 on 06/19/12 at 20:04:01 7E6167607D7A4B7B4B73616D26140 wrote:
to give lefties something to do. |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/19/12 at 20:40:20 Yes, have that tool ready to go. Special Suzuki Tool as described in Clymers. |
|
Title: Re: How to loosen rotor bolt? Post by WD on 06/20/12 at 20:55:49 Justin, it is for the same reason old Mopars had reverse threads on the driver side wheels. So the bolt will tighten with normal use instead of backing out (slim chance on counter-balanced metric engines). Old superstition based on pre-WW2 metallurgy, when threads were a bit on the iffy/soft side. They do fall out of HDs. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/20/12 at 22:21:39 But doesnt the shaft rotate CCW? |
|
Title: Re: How to loosen rotor bolt? Post by verslagen1 on 06/20/12 at 22:32:18 352A2C2B3631003000382A266D5F0 wrote:
Yes, same as... Quote:
and old VW's |
|
Title: Re: How to loosen rotor bolt? Post by WD on 06/20/12 at 22:44:29 Come to think of it, so does one of my boat trailers, so old it also has a transverse leaf spring... :o |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/21/12 at 06:23:33 I am suddenly having a problem, I cant for the life of me grasp WHY on a CCW rotating shaft there would be left hand threads., & I dont remember the LH lugs on the drivers side, cuz, that doesnt make sense to me, Passenger side does,.because IF you held the lug And rotated the tire ( to go forward), then, the lug would loosen if it was RH thread., A CCW rotating shaft would tighten RH threads. |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/21/12 at 06:54:29 Updated status on my problem of removing rotor bolt -- Now I've tried removing it by rotating it clockwise. I'm holding onto the flats of the rotor with a monster 36mm wrench and trying to rotate the 17mm rotor bolt with various tools. Nothing is working, so far. I've started applying heat with a propane torch. My electric impact wrench has not loosened it. I will recruit an assistant and will start trying cheater bars and more heat cycles. Crazy. I do understand that I should not use hammering as I would be hammering on the main crankcase bearings. Radial hammering on a cheater bar or wrench would be OK I think, but no hammering on the head of the bolt in the direction of the main axis of the crankshaft as that would impact the bearings. I bought a 2001 Savage with 3K miles on it for $1500 and will swap that engine into my Ryca chassis to get it back on the road. The 1996 Savage/Ryca engine I am working on now will eventually go into the 2001 Savage chassis assuming I can do the repair. The engine has 22K miles on it and is a boat anchor unless the mainshaft is replaced. Pulley splines are gone. I've got little to lose. I'm looking at this as a learning experience. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/21/12 at 07:09:32 WHOA,, Put it together & take the socket to some place where they have a compressor & impact. & dont guess at which way to turn it. Put 2 eyes on a book. |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/21/12 at 07:25:20 I've got a Clymer's manual. It does not explicitly state that the rotor bolt has left-handed (LH) thread. So, the default would be right-handed (RH) threads. However, on this site the rotor bolt is referenced as one of three LH fasteners on this bike. This is supposed to have been verified by at least two Forum members. Lefty Threads... http://suzukisavage.com/cgi-bin/YaBB.pl?num=1299521066 I don't have the Suzuki Service Manual(SSM) yet -- I think I should buy one. In the meantime, would someone who owns a SSM verify that the 17mm rotor bolt in the center of the rotor, p. 244, figure 13 in Clymers, is actually a left-handed thread bolt? |
|
Title: Re: How to loosen rotor bolt? Post by RidgeRunner13 on 06/21/12 at 07:25:25 From my SSM: Primary Drive Gear- Hold rotor w/ 36mm wrench - torque=65-79.5 lb-ft NOTE: This nut has left-hand thread. Turn it counter-clockwise when tightening. 8-) No mention of any threadlocker being used. HTH. |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/21/12 at 07:31:18 Agree, the primary drive gear nut (on the right side of the engine) uses LH threads. Clymers, p. 131 states CAUTION: The primary drive gear nut has left-hand threads. But I'm not talking about the primary drive gear nut. I'm talking about the rotor bolt. On the left side of the engine. The bolt behind the circular inspection cover on the left hand engine case you rotate to get TDC during a valve adjustment. |
|
Title: Re: How to loosen rotor bolt? Post by justin_o_guy2 on 06/21/12 at 07:38:54 Since it turns CCW in use, it would not make sense for it to be LH thread. Each power pulse of the motor would be trying to make it vibrate loose. |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/21/12 at 07:41:35 I would appreciate hearing from someone who has actually loosened the rotor bolt. Thanks! |
|
Title: Re: How to loosen rotor bolt? Post by Serowbot on 06/21/12 at 07:56:03 Buck... FYI,.. I made the list from what other members said they had experienced... I haven't pulled the rotor nutt myself... Hope I didn't advise you wrong,... but, it looks like maybe I did... When you do,.. hopefully get the nut loose, I'll be watching and make any corrections needed to the post... Best luck... Sorry again, |
|
Title: Re: How to loosen rotor bolt? Post by BuckRYCA on 06/21/12 at 11:25:01 Ok, I ordered the Suzuki Service Manual for this bike (only $10 for a CD on eBay). I'm not doing anything else on that bolt until I read it. |
|
Title: Re: How to loosen rotor bolt? Post by lch2 on 06/21/12 at 13:21:23 7443555D7E7B7575360 wrote:
I did removed that one when replacing my starter clutch, it is a bitc.....h to loosen. The Big one (I think 36mm) on the rotor is meant to use with a removal tool that the vast majority of us do not have, I removed the 17mm from the center, and then keep on the electric impact wrench on the 36mm, did not turn one inch, but eventually the vibration get it loose, it is not an screw or bolt, it just meant for the removal tool to clamp there. After the vibration got it loose, I was able to pull it about 1/4 to 1/2 inch out, then it was stuck, after viewing it more deeply, I saw that it was being held by the "key in the keyway" (sorry, don't know the appropriate word), it took some wiggle to get it aligned and it came out eventually. The point here is don't try to turn the 36mm, as it will not turn, remove the 17mm and then apply vibrating power to the 36mm, and it will come loose after a while. Good luck, as this requires some of that ;) |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by BuckRYCA on 06/21/12 at 13:33:12 I can hardly stand the suspense! ;) Which way did you turn 'the 17mm from the center' to loosen it? Clockwise or Counter-clockwise? |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by lch2 on 06/21/12 at 13:58:08 586F7971525759591A0 wrote:
Not 100% sure because I did it like two months ago, but I'm very confident it will loosen CCW |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by justin_o_guy2 on 06/22/12 at 08:52:31 A LH thread in that spot would be counter to all mechanical design. |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by Serowbot on 06/22/12 at 09:03:27 Pretty sure you're right, JOG... I just updated the "Lefty Thread" post in the Tech section... deleting the rotor bolt from the list... So,... there's only two left hand threads on the Savage... Primary drive, and shifter rod... Sorry for the mistake... go Buck!... get that sucker unwound... |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by BuckRYCA on 06/27/12 at 15:52:14 Hooray! It's loose. Only after soaking it in PB Blaster for a couple of days and laying onto it with several long rattles with my electric impact wrench. The rotor bolt uses standard, right hand (RH) threads -- counterclockwise (CCW) to loosen, cllockwise (CW) to tighten. Next step is to apply the Suzuki Special Tool and remove the rotor from the flywheel. Then the flywheel comes off after that. |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by lch2 on 06/27/12 at 16:31:54 497E6860434648480B0 wrote:
CCW to loosen good to confirm that my memory isn't that bad! In the next step, as I didn't have any idea of what I was doing, I kept trying to loose the big 36mm with the impact wrench, I was lucky enough that the vibration release it, but with the proper tool will be way better and easier. Keep us posted! |
|
Title: Re: How to loosen rotor bolt? RH or LH threads? Post by Dave on 07/15/12 at 10:11:15 497E6860434648480B0 wrote:
Well I just removed the one on my bike......and it is a normal thread and turns anti-clockwise to remove. It has some long threads and it has Lock Tight on it.....so it is a bit stubborn for a while. |
|
SuzukiSavage.com » Powered by YaBB 2.2! YaBB © 2000-2007. All Rights Reserved. |