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27th May 2019
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Biker
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Join Date: Apr 2019
Posts: 52 Sportster/Buell Model: xlh-1000 Sportster/Buell Year: 1975
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Missing this bolt at tappet base, help identify
So, I wanted to degrease my bike before wrenching on it any further. So I took it to the side of my house, let it soak in citric degreaser and hosed it down. Sprayed with more degreaser and started brushing some of the nooks and crannys. Well, thats when I noticed I am missing a bolt on the tappet base. Great, now I am pretty sure the lower end is full of water and degreaser!
First question is what do you call this bolt so I can order a new one. I see what is called " Lifter Block Screw Set" at JP. Can someone point me to correct part to replace?
Second question, by likely getting water and degreaser in there, do you think will be ok? If I just change oil do you think will be fine?
Thanks!
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27th May 2019
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Senior Master Custom Bike Builder
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Join Date: May 2009
Location: 37° 25' 28" N by -80° 03' 42" W
Posts: 11,031 Sportster/Buell Model: XLCH Sportster/Buell Year: 1975
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No need to special order that, it’s a 5/16-18 x1” bolt. Make a visit to your nearest hardware store. I do not recall if that is a blind hole or not, stick a nail in there and see if it bottoms out or not.
__________________
"when you don't know where you're going, any road'll take you there"
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27th May 2019
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Rider Of The Iron Steed
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Join Date: Dec 2003
Location: London, ON Canada
Posts: 32,521 Sportster/Buell Model: XLH Sportster/Buell Year: 1978
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Quote:
Originally Posted by doodah man
... stick a nail in there and see if it bottoms out or not.
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A drink straw is longer. May have other advantages too  |
27th May 2019
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Senior Master Custom Bike Builder
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Join Date: May 2009
Location: 37° 25' 28" N by -80° 03' 42" W
Posts: 11,031 Sportster/Buell Model: XLCH Sportster/Buell Year: 1975
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Quote:
Originally Posted by IronMick
A drink straw is longer. May have other advantages too |
Thats true, but all he has to give her is the first inch. Wink, wink!  |
27th May 2019
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Senior Master Custom Bike Builder
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Join Date: May 2009
Location: 37° 25' 28" N by -80° 03' 42" W
Posts: 11,031 Sportster/Buell Model: XLCH Sportster/Buell Year: 1975
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If that hole goes all the way through you will need to take measures/precautions against ruining the bearings in the engine from water contamination.
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27th May 2019
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Senior Master Custom Bike Builder
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Join Date: Jun 2008
Location: Cornelius, OR
Posts: 9,505
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That takes a 1" long 5/16 coarse thread bolt. Grade 5 is fine.
You might be able to use a slightly longer bolt with a washer, be careful of it bottoming out.
__________________
Ryder Rick "I know right from wrong, but sometimes, wrong feels right"
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27th May 2019
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XL FORUM LIFE MEMBER
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Join Date: May 2014
Posts: 1,340 Sportster/Buell Model: xlh Sportster/Buell Year: 1974
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Apparently it can work without it but your '75 came with a clamp around the starter that was anchored with the bolt that you are missing.
See picture of clamp.
http://xlforum.net/forums/showpost.p...39&postcount=1 |
27th May 2019
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Senior Master Custom Bike Builder
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Join Date: Jun 2008
Location: Cornelius, OR
Posts: 9,505
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In all the years I have worked on Ironheads I have never seen that clamp in place!
Discontinued the last 2 years of production that used the Hitachi starter (79-80).
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27th May 2019
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Biker
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Join Date: Apr 2019
Posts: 52 Sportster/Buell Model: xlh-1000 Sportster/Buell Year: 1975
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Good news, that is just a blind hole. Will stop at my local hardware store on the way home from work tomorrow to grab a bolt. Appreciate all the help!!
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