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"Old" Plug Gap

by Thomas Heiting in 912 / 914 Technical Questions 4 years ago

What is the correct gap for the NGK DCPR 7E plug used on the 912 UL before Rotax changed the plug in 2020 ?

It seems that the Jan. 2020 Maintenance Manual update gives the gap for the newer Bosch plug.

Thanks for the help.

Re: "Old" Plug Gap

by Bill Hertzel » 4 years ago

Bill Hertzel

13 1.95k 7.96k

From the Line Maintenance Manuai Ed3,Rev0, Sept 2012

Electrode Gap
New: 0,6 - 0,7 mm (0.023 - 0.027 in)
Wear limit: 0,9 mm (0.035 in)

Bill Hertzel
Rotax 912is
North Ridgeville, OH, USA
Clicking the "Thank You" is Always Appreciated by Everyone.

Thank you said by: Thomas Heiting

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Re: "Old" Plug Gap

by Ken Ryan » 4 years ago

Ken Ryan

28 360 928

Hey Bill,

Is there somewhere we can download old maintenance manuals? I am specifically interested in an older one for the 914.

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Re: "Old" Plug Gap

by Bill Hertzel » 4 years ago

Bill Hertzel

13 1.95k 7.96k

I do not download 914 manuals as a rule as I am a 912is guy.
Roger or the ADMIN may have some in their archives.

What year are you interested in?

Bill Hertzel
Rotax 912is
North Ridgeville, OH, USA
Clicking the "Thank You" is Always Appreciated by Everyone.

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Re: "Old" Plug Gap

by Ken Ryan » 4 years ago

Ken Ryan

28 360 928

My engine is fairly new (less than 3 yrs) but I am interested in things like the old plugs, fuel specs, etc. and generally comparing to see what has and hasn't changed. Not terribly important, more of a desire for additional reference.

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