V-Twin Forum banner

Which bolts to replace and what kind?

1221 Views 10 Replies 9 Participants Last post by  Ed Y
Got lots of projects planned this winter. Right now removing inner and outer primary. Think I am going to replace the derby and inspection covers with allen head. Was thinking of maybe replacing outer primary. Not sure.

I had a stripped derby bolt last year. Thats whats prompting this. Was my own fault, had not had it off in a while.

What is the difference between polished and unpolished or grade 8 stainless? Do you have to keep cleaning the polished ones? I am mainly looking durability.

If I do primary was just considering allen. Are 12 pnt hex that much better? I assume you can get a better hold on them with a socket.


Also looking at doing 95" and cams. Anything that should be replaced?

Read to replace exhaust studs. Also thinking about the 4 head bolts. I got caps on them now, but would like to get rid of the caps.

Was thinking about alloyboltz? They do have a TC kit for $69
http://www.alloyboltz.com/catalog/product_info.php?cPath=13_16_18&products_id=124

Thanks for any help.
1 - 11 of 11 Posts
I will give my opinion on this.
Chrome: Looks good upon initial installation but is not a service part. Use caused the chrome to crack and then rust forms. Also with chrome hardware, you need to run it through a die to take off any excess plating on the threads before use or they can screw up the threaded hole.
Stainless: Great stuff for holding things together as long as it has no shear stress requirements on the bolts. Never use stainless where shear stress is a factor like with footpegs. Very servicable hardware and polished looks good for a long time. If you use stainless make sure you always use a torque wrench because is will strip threads before it snaps off.
I use allen head hardware and you can get button head for the derby and inspection covers put sombody else will have to put up the source. I have chrome in these locations, with a litle rust.
12 point are great fasteners but too expensive and over kill, in my opinion, for use on all the primary cover screws.
And the alloyboltz looks like a deal to me, but the inspection and derby look to still be #27 torx. Not a big deal to me. You may be able to round up all the bolts cheaper one by one, but a complete kit sure saves a lot of time and you have what you need when you need it.
See less See more
I was thinking 12pnt for primary bit of over kill too. I don't want chrome, cause of the eventual rusting. Got chrome bolts in my handlebar controls and going to replace.

So I am thinking polished stainless.
Try diamond engineering. Give them a call. All stainless kits
www.depss.com
The 12 points are great for derby cover and primary chain insp cover.
I have the full set from alloyboltz, polished, 12 point, yes the point cover are button allen.

Pricey, but Grade 8 and almost all numbers are polished off the bolts, very and I mean very feint and hard to see.

I am looking forward to using them and my new craftsman ratcheting wrenches.

Pulling primary, cam chest, upper rocker box's, and any other bolt that is clear in this process, I have to say I am pretty excited about the look and on those damn push rod blocks they should look sweet.
LAF said:
I have the full set from alloyboltz, polished, 12 point, yes the point cover are button allen.

Pricey, but Grade 8 and almost all numbers are polished off the bolts, very and I mean very feint and hard to see.

I am looking forward to using them and my new craftsman ratcheting wrenches.

Pulling primary, cam chest, upper rocker box's, and any other bolt that is clear in this process, I have to say I am pretty excited about the look and on those damn push rod blocks they should look sweet.
I have changed out almost all my bikes bolts to alloyboltz grade 8 polished 12 points. Great customer service and they really look greatr!!
Have the Alloyboltz, full set installed when I did my build last month. They sure look GREAT! Like diamonds all over my black and chrome engine.....
Question...

When you replace bolts in covers that have gaskets (rocker box, primary, etc) do you drain the fluid, pull all bolts, replace cover w/ new gasket, bolts, and fluid OR just pull bolts one at a time and replace and retorque?

thanks,
thrasher
I second Gomer. DEPSS.com they have a quality product and are great to deal with. There are different grades of stainless some higher than grade 8 and some less.
thrasher said:
When you replace bolts in covers that have gaskets (rocker box, primary, etc) do you drain the fluid, pull all bolts, replace cover w/ new gasket, bolts, and fluid OR just pull bolts one at a time and replace and retorque?

thanks,
thrasher
It's not a rocket engine. Just pull one at a time and replace.
1 - 11 of 11 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top