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Century Radikal E640 - Swift 16 NX
› Mounting Johnson250?
11-07-2004 03:26 AM  13 years agoPost 1
wakeboarder2342

rrVeteran

USA

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I just purchased a few johnson 250's for my humming v2. anyway my problem has been in mounting them. i cannot find screws that are the right size to fit in the holes. i have tried drilling them out but i cant ever seem to make them hold. can anyone tell me what i can do to get screws to secure the motor to the frame? i got one to hold for about 20 min and it seemed to have a ton more power then my stock 370. I had to go back to the 370 because i CANNOT make it say put. Any advise is appreciated.
thanks

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11-07-2004 04:08 AM  13 years agoPost 2
MarksRC

rrApprentice

Wellington, FL

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Hi;
The best way to mount the Johnson 250 is by cutting threads in the existing holes on the motor housing with a #4-40 tap, then use some small #4-40 screws and washers. Someone in one of these links said you could purchase a # 4-40 tap at Radio Shack. I saw one at my LHS. Here is a link on the Johnson 250 which talks about this subject.


rcgroups link

Mark

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11-07-2004 04:27 AM  13 years agoPost 3
MarksRC

rrApprentice

Wellington, FL

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Oh by the way, on the link I posted above, they show how to do a mod on the J250 (page 5 or 6). I took the engine apart according to these instructions, before tapping the housing holes, so the metal flakes could be cleaned out when the threads were cut. Re-assemble, CA closed and your ready to go!

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11-07-2004 06:49 PM  13 years agoPost 4
hingus2000

rrKey Veteran

West Midlands UK Posts: 75069

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lol i just glued mine in and it hasnt come out yet!!

Tom

T-Rex SA, Anodized Head, Gy240, 3s TP 2100mah, Align 35A ESC, 430L Motor

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Century Radikal E640 - Swift 16 NX
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