Donate!
Welcome, Guest. Please Login or Register :: View Members
Pages: 1 2 3 4 
Send Topic Print
Screeching sound, weird noise on shifting into fir (Read 329 times)
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17810
Camp Springs, Kentucky
Gender: male
Re: Screeching sound, weird noise on shifting into
Reply #15 - 10/23/18 at 07:47:17
 
Unfortunately a knocking sound can come from many places, and they are not always easy to identify the source by just listening.  Knocks are generally created when there is excess clearance somewhere - and the sound can be easily transmitted to other engine parts without identifying exactly where the "bang" originates.

As an example - my bike had a horrible knock that could be heard from a block away.  It started out as just a tick when the bike only had 400 miles on it - by the time the bike had 1,200 miles the engine sounded like it was coming apart.  You could not isolate where the noise was located, as the sound seemed to come from everywhere.  I started at the top of the engine and took things apart looking for the source, and unfortunately I got the engine almost completely apart before I found out the flywheel nut was loose.  The flywheel would rock back and forth on the crankshaft with every power pulse - but the sound is transmitted to the crankshaft and travels through the bearings and into the engine block...so the entire engine block would pulse with the sound.

You really need a good mechanical mentor to help you learn how to analyse and diagnose this issue - somebody who can actually be there to listen and look with you.  (Where do you live?).
Back to top
 
 

Someday I will be old......But not today!

  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #16 - 10/23/18 at 08:20:32
 
"However - having an engine with water and rust in the crankcase could have ruined the crank and bearings - but there is nothing to machine....you just find a good used one and replace the bad one and use new ball and roller bearings on both ends of the crank."

Please excuse my ignorance-but what are these parts? ball and roller bearing? I can't find them on google easily.


This is essentially the gist of my question. What needs to be replaced if the rod knock is indeed the issue. I know how to adjust the valves and how to tighten the flywheel nut but what parts would need replacing in the event i need to order stuff for the engine (without swapping out) or in lieu of a rebuild kit.
Back to top
 
 
  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #17 - 10/23/18 at 08:22:42
 
I'm in Atlanta.
I work at a HD, with Eaglerider.
The only mechanics I have around me are HD techs.

Back to top
 
 
  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17810
Camp Springs, Kentucky
Gender: male
Re: Screeching sound, weird noise on shifting into
Reply #18 - 10/23/18 at 08:47:26
 
jjthejetplane wrote on 10/23/18 at 08:20:32:
Please excuse my ignorance-but what are these parts? ball and roller bearing? I can't find them on google easily.


The crankshaft is two halves that are pressed together with the rod in between - they can be separated and a new rod and bearings installed, however it takes knowledgeable folks with good tools, and it easier/cheaper to buy a good used crank.

The crankshaft has a roller bearing on the left side, and a ball bearing on the left side.  When you take the engine apart the roller bearing and inner race stay on the left side  - while the left side outer race and right side ball bearing stays in the engine cases.

Here is what a crankshaft and a left side roller bearing look like:

https://www.ebay.com/itm/1998-Suzuki-Savage-650-LS650P-ENGINE-MOTOR-CRANKSHAF...

Do you have a Clymer workshop manual for the Savage?
Back to top
 
 

Someday I will be old......But not today!

  IP Logged
ohiomoto
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 2684
WTF is JOG?
Re: Screeching sound, weird noise on shifting into
Reply #19 - 10/23/18 at 09:25:32
 
Sounds like a horrible rod knock to me and I would bet on that it's the upper rod bearing because of the sound.  Crank bearings normally don't knock that loudly and a lower end bearing would most likely have a deeper tone too it.  The upper bearing is the smallest bearing in there and it is the most likely to rust in the presence of moisture because it is exposed to oxygen.  The lower rod bearing and main bearings are larger and likely covered in oil/water which means they would most likely not fail as soon as the rod bearing.

If my suspicions are correct, you might be able to fix it with as little as a wrist pin, upper rod bearing, and a few gaskets.  I would be worried about the rest of the engine parts, but if you don't have the money you could tear it down and try it.  I would probably hone the cylinder and throw a set of rings in it while it's apart.  

Of course, this is just a guess. It's what I would expect to find if I took it apart.  You can do this for a fair bit of work and a little bit of money.  If things look worse as it comes apart, you can do a full rebuild, look for a used motor or even another bike.  If it looks like you can do it on the cheap, cross your fingers and hope the rest of the bearings don't fail prematurely.  
Back to top
 
 
  IP Logged
ohiomoto
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 2684
WTF is JOG?
Re: Screeching sound, weird noise on shifting into
Reply #20 - 10/23/18 at 09:27:46
 
Also, any HD tech would be able to handle this.  Just educate them on the things you want to eliminate before ripping it apart.  Like the flywheel bolt, etc.
Back to top
 
 
  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #21 - 10/23/18 at 10:24:41
 
Yes, I have a Clymer's manual.

Upper rod bearing wrist pin? Any pics or part numbers?

Thank you for the info guys.
Back to top
 
 
  IP Logged
ohiomoto
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 2684
WTF is JOG?
Re: Screeching sound, weird noise on shifting into
Reply #22 - 10/23/18 at 10:37:26
 
https://www.partzilla.com/catalog/suzuki/motorcycle/2004/savage-ls650p/cranks...

Part 22 is the pin.  Don't see the bearing which is odd. It should look like a smaller version of Part 4.  



Back to top
 
 
  IP Logged
verslagen1
YaBB Moderator
ModSquad
*****
Offline

Where there's a
will, I want to be
in it.

Posts: 28760
L.A. California
Gender: male
Re: Screeching sound, weird noise on shifting into
Reply #23 - 10/23/18 at 10:44:26
 
no bearing for the wrist pin.
Back to top
 
 
WWW   IP Logged
ohiomoto
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 2684
WTF is JOG?
Re: Screeching sound, weird noise on shifting into
Reply #24 - 10/23/18 at 10:49:26
 
Uhg, that is probably not good news.  Parts 1 and 22 then!  LOL

Or craigslist.
Back to top
 
 
  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #25 - 10/23/18 at 11:06:23
 
PIN, PISTON
12151-14A01

And am I to understand that it has no bearing as in I don't need to worry about purchasing that part? So essentially, the crankshaft (good, used if it can be found) and the wrist pin with a set of gaskets. IF it is a lower end knock.
also, a used Crankshaft if it is a ball and roller bearing?

In the meantime, checking valves, rechecking tensioner, and whatever i can see from the top end whilst still in the frame.
From there, if no visible issues, check flywheel, and if nothing there, start tearing down the engine?

Am i following?
Back to top
 
 
  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17810
Camp Springs, Kentucky
Gender: male
Re: Screeching sound, weird noise on shifting into
Reply #26 - 10/23/18 at 11:20:33
 
jjthejetplane wrote on 10/23/18 at 11:06:23:
And am I to understand that it has no bearing as in I don't need to worry about purchasing that part? So essentially, the crankshaft (good, used if it can be found) and the wrist pin with a set of gaskets. IF it is a lower end knock.
also, a used Crankshaft if it is a ball and roller bearing?

Am i following?


Do not buy anything until you have isolated what the problem is, and what parts will be needed for the repair.

You need somebody qualified to look at this engine and do a diagnosis.

I know this doesn't sound very helpful - but buying parts and randomly replacing things does not guarantee success.

Back to top
 
 

Someday I will be old......But not today!

  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #27 - 10/23/18 at 11:40:06
 
Not buying any parts just trying to price things and plot out a work timeline. I have to move my bike out of the garage in about a wk as we are closing up for the winter season so, trying to get as much done as I can while I  have access to a lift and all the tools i need.

I just want to be sure of what may potentially lie ahead.
I will be going through the aforementioned steps first.
I'll try to post pics tmrw.
Back to top
 
 
  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #28 - 10/23/18 at 11:40:36
 
Thanks everyone!
Back to top
 
 
  IP Logged
jjthejetplane
Full Member
***
Offline

SuzukiSavage.com
Rocks!

Posts: 164
22560
Gender: female
Re: Screeching sound, weird noise on shifting into
Reply #29 - 10/23/18 at 11:41:43
 
One last question-Say I am unable to get this repair done in the next wk. How much damage am I looking at if I ride it until I can replace the (potentially damaged) crankshaft and bearings.
Back to top
 
 
  IP Logged
Pages: 1 2 3 4 
Send Topic Print


« Home

 
« Home
SuzukiSavage.com
05/01/24 at 23:27:22



General CategoryRubber Side Down! › Screeching sound, weird noise on shifting into fir


SuzukiSavage.com » Powered by YaBB 2.2!
YaBB © 2000-2007. All Rights Reserved.