ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-06-2012, 08:34 PM   #46
hardwaregrrl OP
ignore list
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 7,240
Quote:
Originally Posted by Airhead Wrangler View Post
Don't forget the little gasket doughnuts that go on the upper studs which hold your timing cover on. Forget those and your new gasket won't seal right
Yep, I do have them! Thanks AW!!! Got any advice on the stud?
hardwaregrrl is offline   Reply With Quote
Old 12-06-2012, 08:54 PM   #47
Airhead Wrangler
Adios Mexico
 
Airhead Wrangler's Avatar
 
Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,430
Quote:
Originally Posted by hardwaregrrl View Post
Got any advice on the stud?
Sorry, but I've been lucky enough to have never pulled one. Thread insert, ho! Good luck.
__________________
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
Airhead Wrangler is offline   Reply With Quote
Old 12-07-2012, 09:01 AM   #48
Stan_R80/7
Beastly Gnarly
 
Stan_R80/7's Avatar
 
Joined: May 2012
Location: VA
Oddometer: 1,274
Now that you have done this job, the next time it will be easier - especially if the old chain is cut off with bolt cutters. That is, provided the sprocket teeth and bearing look good. After (sucessfully) going through all that with the timing chain replacement (especially the bearing and sprockets) installing a helicoil is fairly simple.

There are some specialized kits for repairing the studs in the engine case, but a standard helicoil should work great. Of course, the cylinder must be pulled and some tape/protection put behind the stud hole to drill it out for installing the helicoil. The access provided by removing the cylinder should be enough to get behind the stud hole.

The tap (provided in the helicoil kit to cut the threads) can be packed with grease and cleaned frequently to catch any chips that may fall into the engine. Drilling the oversize hole for the tap is where the tape and access behind the hole are important to catch metal chips from falling into the engine. Use WD40 on the drill bit and hole when enlarging the engine case hole to make cutting easier.

The only advise I can give is when tapping the helicoil hole, use a tap guide. The tap guide helps get the threads started straight and makes the job easier. A tap guide is not required, but really helps.

A tap guide is usually made from a piece of (1"x1") flat wood or aluminum stock (aluminum is better) ~ 3/8"-3/4" thick with a hole slighly larger than the tap drilled in a drill press. If the tap guide is made first, it can help (but is not critical) for drilling the oversize hole. WD40 on the tap hole would be good here also - just make sure any tape to catch metal bits does not come off from soaking in the WD40.

Good Luck! [insert legal disclaimer here]

p.s. The above is how I would approach installing a new helicoil to repair a stripped engine case hole. YMMV.

Edit: Not that you may even want to know (but, it's too late - I'm in this far): here are a couple of links to tap guides and how to use them.
http://www.amazon.com/Hand-Tap-Guide.../dp/B000ZN30U4
http://www.slidewright.com/weblog/sk...hand-drilling/

Stan_R80/7 screwed with this post 12-07-2012 at 10:26 AM
Stan_R80/7 is offline   Reply With Quote
Old 12-07-2012, 03:34 PM   #49
hardwaregrrl OP
ignore list
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 7,240
Thanks Stan......I'm gonna go this route. I'm lucky enough to have a shop that allows me to use their fancy schmancy tools and what nots.....so I'll drag the bike out to Watkinsville early in the AM. I had thought about going the helicoil route, but this is a learning process and I want to do it the correct way. Since it's a top stud, I was nervous about blocking the oil feed hole...and the jig supplied will get rid of that fear. After I read this, I decided to do it the proper way. I'll try and take pics of the process.

hardwaregrrl screwed with this post 12-08-2012 at 05:22 PM
hardwaregrrl is offline   Reply With Quote
Old 12-07-2012, 05:33 PM   #50
Stan_R80/7
Beastly Gnarly
 
Stan_R80/7's Avatar
 
Joined: May 2012
Location: VA
Oddometer: 1,274
Oh, yea, those top studs supply oil the the valve train. I forgot about that. There is no back access to the hole. Whoops.

It looks like you have a good plan to fix the stripped threads. Good luck!
Stan_R80/7 is offline   Reply With Quote
Old 12-08-2012, 03:49 PM   #51
hardwaregrrl OP
ignore list
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 7,240
So that HPD tool is the schiznit!!!

STep 1 Remove stud

Uploaded from the Photobucket iPhone App

Step 2 install drill bushing

Uploaded from the Photobucket iPhone App

Step 3 drill bit ready with grease

Uploaded from the Photobucket iPhone App

Step 4 Drill it out!

Uploaded from the Photobucket iPhone App

Step 5 tap it

Uploaded from the Photobucket iPhone App

Step 6 clean it and vacuum it out

Uploaded from the Photobucket iPhone App

STep 7 Install insert with bad ass loctitie

Uploaded from the Photobucket iPhone App

Step 8 Let the insert cure

Uploaded from the Photobucket iPhone App

Step 9 install bushing for oil passage

Uploaded from the Photobucket iPhone App

Step 9 drill oil passage

Uploaded from the Photobucket iPhone App

Step 10 Admire your work

Uploaded from the Photobucket iPhone App

Step 11 Stud back in the block.

Uploaded from the Photobucket iPhone App




So I had a little more time and put the oil pan back on with the nice shiny new gasket.

Uploaded from the Photobucket iPhone App

Uploaded from the Photobucket iPhone App

And just to make sure the oil passage was clear......eureka!!!

Uploaded from the Photobucket iPhone App

hardwaregrrl screwed with this post 12-08-2012 at 05:21 PM
hardwaregrrl is offline   Reply With Quote
Old 12-08-2012, 04:04 PM   #52
bpeckm
Grin!
 
bpeckm's Avatar
 
Joined: Apr 2008
Location: Road Island
Oddometer: 5,743
..........

nicely done... that tool looks the part...
__________________
XS650 becomes a VT BackRoadRunner
Loving the 80ST
I love projects that take twice as much effort as should be needed. Should be an Airhead motto. (disston)
__________________
bpeckm is online now   Reply With Quote
Old 12-08-2012, 04:50 PM   #53
Renner
infamous wrench
 
Renner's Avatar
 
Joined: Jul 2007
Location: sunny SoCal
Oddometer: 2,105
good job!
__________________
"If you want to fix it with a rock, you have to stick to stone-age technology" -Anton
"...solving the latest crisis that is preventing my Airhead from taking me to the bar." -Beater-
Renner is online now   Reply With Quote
Old 12-08-2012, 05:12 PM   #54
Sutherngintelmen
around the bend
 
Sutherngintelmen's Avatar
 
Joined: Mar 2009
Location: ATL
Oddometer: 1,196
Hell yeahs Jenna!
__________________
There is a pleasure in the pathed woods, There is a rapture in the smoking pipe, There is chaos, where none intrudes, in the deep dell, with its thrills roar; I love not nature less, but bikes the more. Byron riding.

All pics < 6/30/12 deleted by Apple Now with SmugMug supporting ADV
Sutherngintelmen is offline   Reply With Quote
Old 12-08-2012, 05:13 PM   #55
Stan_R80/7
Beastly Gnarly
 
Stan_R80/7's Avatar
 
Joined: May 2012
Location: VA
Oddometer: 1,274
Cool! Good Job!

This was the 'specialized kit' I referred to earlier - that (quite frankly) appeared to be a drill and tap guide that one could make in the shop w/out much trouble - and certainly *not* worth $500.00. However, seeing it in action (and not done by a paid representative) I have changed my opinion. Thanks for sharing.
Stan_R80/7 is offline   Reply With Quote
Old 12-08-2012, 05:43 PM   #56
disston
ShadeTreeExpert
 
disston's Avatar
 
Joined: Mar 2011
Location: Silver Spring, Md
Oddometer: 8,953
Nice photos. Thanks for the tutorial.
__________________
.
Never memorize something you can look up.
---Albert Einstein

Pay your debt, piratejohn.http://www.advrider.com/forums/showthread.php?t=949341
disston is online now   Reply With Quote
Old 12-08-2012, 06:30 PM   #57
hardwaregrrl OP
ignore list
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 7,240
Thanks guys....obviously there is a bit more to it than that, but that jig sure keeps your brow dry. Took about 4 hours and 3 of that was letting the insert cure. I'm hoping for my starter back early in the week, so I can put her back together and getting the timing spot on.....then I really and truly can jet my carbs.
hardwaregrrl is offline   Reply With Quote
Old 12-08-2012, 06:32 PM   #58
mark1305
Old Enough To Know Better
 
mark1305's Avatar
 
Joined: Feb 2005
Location: Merritt Island, FL
Oddometer: 5,988
Very good job, Jenna!
__________________
Mark J
Merritt Island, FL

When a person asks you for advice, they don't want advice. They want corroboration.
mark1305 is offline   Reply With Quote
Old 12-08-2012, 06:37 PM   #59
hardwaregrrl OP
ignore list
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 7,240
Quote:
Originally Posted by mark1305 View Post
Very good job, Jenna!
Thanks Mark

To all you fellas who were asking for a tech day on the timing chain replacement....I'm sorry. I was able to secure some work up until Christamas, I had the time to tackle it this week, so I couldn't wait. Most of the tech you'd be observing would be me fishing for tools in my garage after I'd thrown them in disgust. I'm am happy to help you change yours, but it ain't an easy few hours....hopefully Brad and I can do something in January. Going to pull the jugs and change out the rod bearings, and maybe even attempt to balance the pistons and rods. That one will be a bit easier to show.
hardwaregrrl is offline   Reply With Quote
Old 12-08-2012, 06:40 PM   #60
Airhead Wrangler
Adios Mexico
 
Airhead Wrangler's Avatar
 
Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,430
That tool is pretty slick. Still, I hope I never have to use it though.
__________________
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
Airhead Wrangler is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 07:24 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014