Author Topic: 175 rings  (Read 273 times)

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Offline RayK

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175 rings
« on: March 12, 2017, 03:59:19 PM »
A question for the 175 (DT and SR) experts.
Can you use SR rings on a 175 DT piston?
Cheers
Ray
BS 175DT x 2, BS 50 Sport, BS 90 Mountain x 3, BS 90 Deluxe, BS 90 Sport x2, Chibi, BS 60 Sport, BS 90 Trail x 2.

Online OldSwartout

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Re: 175 rings
« Reply #1 on: March 12, 2017, 04:24:53 PM »
They'll work, but the end gap will be excessive, so performance may be down some.  Others on here may have other opinions, so wait for more answers.
Karl Swartout
Mooresville, IN
BS175 Roadracer
BS350 GTR

Offline RayK

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Re: 175 rings
« Reply #2 on: March 12, 2017, 04:36:06 PM »
Thanks Karl, I have a choice of putting the old pistons and rings back in or new dt pistons with SR rings. Hobsons choice eh😯
BS 175DT x 2, BS 50 Sport, BS 90 Mountain x 3, BS 90 Deluxe, BS 90 Sport x2, Chibi, BS 60 Sport, BS 90 Trail x 2.

Online OldSwartout

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Re: 175 rings
« Reply #3 on: March 12, 2017, 04:51:07 PM »
Personally, I'd measure the end gap of each and go with the ones with the least.
Karl Swartout
Mooresville, IN
BS175 Roadracer
BS350 GTR

Offline RayK

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Re: 175 rings
« Reply #4 on: March 13, 2017, 02:08:57 AM »
Karl
I did as you suggested and found endgap on old pistons/rings to be 0.003 inch. SR endgap more than 0.003 inch. So cleaned them up and will go with old ones. Thanks for your help.
Ray
BS 175DT x 2, BS 50 Sport, BS 90 Mountain x 3, BS 90 Deluxe, BS 90 Sport x2, Chibi, BS 60 Sport, BS 90 Trail x 2.

Offline Bridgestone Man

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Re: 175 rings
« Reply #5 on: March 13, 2017, 09:31:07 AM »
Ray

This may be a silly questions, why not put new 175 DT rings in as SR's are too small.

Sam Keys

Offline RayK

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Re: 175 rings
« Reply #6 on: March 13, 2017, 03:07:45 PM »
Good question BS man,
I happened to have 2 pair of SR rings and no DT rings. As I live in Australia BS NOS parts are near impossible to find. Ergo I now have 2 pair of NOs SR spare. Luckily the used DT pistons and rings are OK to use.
Ray
BS 175DT x 2, BS 50 Sport, BS 90 Mountain x 3, BS 90 Deluxe, BS 90 Sport x2, Chibi, BS 60 Sport, BS 90 Trail x 2.

 


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