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Message started by Andy RN on 05/12/17 at 13:01:11

Title: Do I Need A Tool to Measure Thread Pitch and Size?
Post by Andy RN on 05/12/17 at 13:01:11
Hi All!

So far I am only removing large components off my bike, like the belt cover, but already I'm finding hardware that needs to be replaced. So far, it seems easy enough, because the bolts are large... but I think I have to replace my cam chain tensioner, and take apart my engine to repair an oil leak coming from the head... I might even have to replace the cam chain and do a compression test on the engine because I'm at 45K miles... so I was wondering:

Will I eventually need a tool to measure bolt size and pitch?
Thanks!

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by norm92de on 05/12/17 at 13:25:00
A caliper and a metric thread gage will be useful I use mine all the time.
If you buy a caliper get a good one it will be an investment.

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by norm92de on 05/12/17 at 13:32:59
Andy,
You will be a regular at Loews or Home Depot before you know it. you can get a lot of stuff for your bike there. Think stainless steel if they have it. Suzuki bolts will be more expensive.

I hate rusty bolts etc.

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by SALB on 05/12/17 at 14:03:05
If you're replacing hardware because of messed up, corroded threads, then you might want to consider investing in a set of metric taps as well.   ;)

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by verslagen1 on 05/12/17 at 14:03:55
Just take the bolt with you as thread lengths vary.
For the most part, thread pitch is the same, so once you find one you know them all.

Length can be gotten from the OEM fishe on all websites.

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by Dave on 05/12/17 at 14:13:20
Yep.....length can change - you can measure that with a metric ruler.

Most common fasteners on the Savage are either 6x1.0 or 8x1.25 or 10x1.50.  

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by Andy RN on 05/12/17 at 14:21:43

5B485F5E414C4A48431C2D0 wrote:
Length can be gotten from the OEM fishe on all websites.


Thanks, Verslagen1!

Can you please elaborate on the length being found on the fiche? I DL'ed the fiche compiled by a member on this forum, and I see part numbers for screws and bolts, but not dimensions.  

I also plugged a random part number of a screw from the fiche into a parts website here (http://partshark.com/oemparts/p/suzuki/02122-0612a/screw), but still didn't find dimensions. Am I using the wrong site or something?

Thanks again!

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by Andy RN on 05/12/17 at 14:27:28

50514C53070C5A5B3E0 wrote:
Andy,
You will be a regular at Loews or Home Depot before you know it. you can get a lot of stuff for your bike there. Think stainless steel if they have it. Suzuki bolts will be more expensive.


Thanks, Norm. Yes, I have been wondering about this too... I spent some time YTing today, learning about bolts, and I think this is issue refers to a bolt's "grade"? Apparently the bolt's head has markings on it which describe the grade, which pertains to the bolt's strength?

In any case, I was a little concerned about going down to Home Depot or something for my replacement hardware. I wasn't sure if "automotive quality" metal mattered a whole lot or not... It seems like you are saying that it's usually not an issue?

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by Andy RN on 05/12/17 at 14:37:15
Thanks for the reccomendation, SALB. In my research today, I found several methods suggested for sizing bolts:
  • flat plate-like bolt gauges with holes in them like THIS (https://grainger.com/product/2EE44&AL!2966!3!166589331031!!!g!82128627117!?gclid=CMXlnsmI69MCFQ9rfgoddlMGtw&s_kwcid=AL!2966!3!166589331031!!!g!82128627117!&ef_id=WRS21AAAAGq41EBX:20170512191600:s)
  • screw pitch gauges with folding "leafs" resembling feeler gauges like THIS (https://.zoro.com/mitutoyo-screw-pitch-gage-v-unified-4-to-84-950-253/i/G1971033/?gclid=CMH3sdyD69MCFUiBfgodqXcBww&gclsrc=aw.ds)
  • or screwing a bolt or screw into a hex die like THE ONE YOU MENTIONED (http://sears.com/craftsman-75-piece-combination-tap-die-carbon-steel/p-00952377000P?sid=IDx01192011x000001&gclid=CKDQ-rGN69MCFQqDfgod3F8NjA&gclsrc=aw.ds&dclid=CM_pnbKN69MCFRN1YgodSHMEqA)

I think I'm drawn to the hex die method, because it seems fast, simple, easy, and accurate. Although Dave mentioned the common sizes, and my guess is that might cover 99% of my current issues right there... wondering if that will change once I get to the engine or the carburetor?

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by verslagen1 on 05/12/17 at 14:38:22

51455057535D3C0 wrote:
Can you please elaborate on the length being found on the fiche? I DL'ed the fiche compiled by a member on this forum, and I see part numbers for screws and bolts, but not dimensions.  


Well, not all bolts, but some have dimensions.
such as crankcase #23 bolt (10x180)
that'll be a M10 bolt 180mm long.

Title: Re: Do I Need A Tool to Measure Thread Pitch and S
Post by batman on 05/12/17 at 14:49:32
I'd check and see if the oil leak is the dreaded head plug leak, if it is,there is only two reasons to remove the head ,1) if your compression is bad,2)  when you change your cam chain, the cam chain guides are worn and have to be replaced.

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