B2410 RPM spedo cable

beerbeer95648

New member
Feb 14, 2020
11
0
1
Placerville
I'm having an issue where my b2410 will not register above about 1500 RPM. Audibly the RPMs are increasing. I can see the throttle linkage moving its full range of motion at the injector pump. I assumed it was my Speedo cable so I replaced that with a factory OEM cable. No change. Any thoughts?
 

Dave_eng

Well-known member
Lifetime Member

Equipment
M7040, Nuffield 465
Oct 6, 2012
5,192
985
113
Williamstown Ontario Canada
Disconnect cable at engine end and rotate with cordless drill. Change rpm's slowly.
If instrument continues to act same way I have seen instruments where spiders have gotten inside and inhibit the needle movement.

I have some improve completely by bright left in the bright sun which seems to desiccate the tiny spiders.
B2410 instruments.jpg


Dave
 
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beerbeer95648

New member
Feb 14, 2020
11
0
1
Placerville
Disconnect cable at engine end and rotate with cordless drill. Change rpm's slowly.
If instrument continues to act same way I have seen instruments where spiders have gotten inside and inhibit the needle movement.

I have some improve completely by bright left in the bright sun which seems to desiccate the tiny spiders.

That's agood idea. I'll try that and report back.
View attachment 133888

Dave