T-27 Torx Primary Bolts Stuck, Help!
Road Master
Joined: Mar 2013
Posts: 786
Likes: 603
From: Alberta
I had this with one derby screw last spring. Neighbour says use my Dewalt impact with a good bit. I was skeptical but it came right out, mostly because of the pressure I could put on it that just can’t be done with most hand tools.
Seasoned HDF Member
Joined: Aug 2009
Posts: 9,239
Likes: 3,261
From: west Michigan
I disagree with this, drilling out a screw with a stripped out wrenching surface in this location is a very simple process, even if you need to remove the outer primary cover and use a drill press.
I think that using a hand impact struck with a hammer would be the riskiest method, outer primary covers are expensive.
I think that using a hand impact struck with a hammer would be the riskiest method, outer primary covers are expensive.
If you owned a Japanese motorcycle in the 1960s and 1970s and did your own work, you would own an impact driver and know how to use it, because the engine side covers were attached with soft Phillips head screws.
Seasoned HDF Member
Joined: Oct 2015
Posts: 13,445
Likes: 34,502
From: Pine Flat Dam/South Bay Area, CA
Roughly half of the force of the hammer blow will be converted to rotational force in the impact driver.
If you owned a Japanese motorcycle in the 1960s and 1970s and did your own work, you would own an impact driver and know how to use it, because the engine side covers were attached with soft Phillips head screws.
If you owned a Japanese motorcycle in the 1960s and 1970s and did your own work, you would own an impact driver and know how to use it, because the engine side covers were attached with soft Phillips head screws.
Tourer
Joined: Jul 2021
Posts: 382
Likes: 251
From: Florida
Wow haven't come across one of them or a reed and prince in a long time
Thread Starter
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Stellar HDF Member
Joined: Apr 2008
Posts: 2,124
Likes: 651
From: Gettysburg, PA (For Now)
...
That's a good idea! I believe the bolt holes go all the way through. Pull your loose bolt and check.
If you have a large syringe, that would make the job take a bit less time. Farm supply stores or maybe even a vet should be able to sell you a large syringe. One from a fork oil level kit should work as well.
Tom
If you have a large syringe, that would make the job take a bit less time. Farm supply stores or maybe even a vet should be able to sell you a large syringe. One from a fork oil level kit should work as well.
Tom
I believe I'm correct...
HDF Community Team
Joined: Nov 2012
Posts: 6,186
Likes: 2,412
From: USA
Just take the top bolt out and use a little screw driver to see if the hole is blind or not. Then you'll know.
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Seasoned HDF Member
Joined: Apr 2010
Posts: 9,524
Likes: 7,861
From: Long Island, New York
Mikuni carbs use JIS screws to attach the float bowl, major PITA. Replaced with allen head screws during rebuild.
Stellar HDF Member
Joined: Jul 2017
Posts: 3,333
Likes: 1,280
From: Ky
my thoughts exactly. My second choice would be weld a nut to the screw through the middle of the nut. I ve paid to have that done to larger bolts, those round covers are a dime a dozen, but you can carefully cover some of the chrome.
