Page 1 of 1

Upper engine bolt mod

Posted: Wed Aug 14, 2019 12:59 pm
by John Brooks
Pulled a friends 62B motor for a clutch change yesterday. The upper bolts were packed with 25 years of oil condensate and grease. They gave me the me the most trouble accessing them from below, I have ever had on over 50 years of these tubs.. After we got the engine out we modified the bolt heads with a roll pin as below so they won't spin. Just a blind hole and a pressed in pin. I know there is several ways to modify the bolts, but this was pretty simple and no welding. A socket will still grip the head but not required any more. If you have a motor out I highly recommend this mod so when you get old you can remove all four nuts from the schrod side.

Re: Upper engine bolt mod

Posted: Wed Aug 14, 2019 10:42 pm
by EricMcKinley
Ab Tiederman sold these for many years.

I have them on my engine.

Re: Upper engine bolt mod

Posted: Tue Aug 27, 2019 5:16 pm
by Dave Wildrick
Not as classy, but wrapping a small stainless steel hose clamp around the flats works just fine, with the adjustment screw head preventing bolt rotation.

Re: Upper engine bolt mod

Posted: Wed Aug 28, 2019 7:29 pm
by Wes Bender
Careful Dave......they'll think we're both "shade tree" mechanics. Works though.