OS 120 wrist pin removal - Page 3 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 10-15-2019, 10:54 AM   #21
stegl
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Re: OS 120 wrist pin removal


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Bob, have you got the piston and rod out of the engine ?
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Old 10-15-2019, 06:57 PM   #22
Arceenut
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Re: OS 120 wrist pin removal

Quote:
Originally Posted by cope View Post
Arceenut: You are correct.I am still working on it.I am using a ground down drywall screw to try to get it to turn.So far no luck.It has only been a week so far!I do not think the engine is any good but it has got me pissed.I'll keep trying.
Bob
A dry wall screw sometimes can be screwed into the end of the wrist pin and will wedge itself there. Now try to gently tun the screw in trying to turn the wrist pin. Heating the top of the pisto will help loosen the wrist pin. Once you get the wrist pin turning you are almost home. Apply more solvent to the con rod and piston from the underside to flood the con rod small end and the piston. Work the wrist pin with the screw while gently pulling and you will soon have the wrist pin out.
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Old 10-15-2019, 06:59 PM   #23
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Re: OS 120 wrist pin removal

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Bob, have you got the piston and rod out of the engine ?
The OS 120 is one of the engines where the wrist pin must be removed and the piston out of the case before there is enough play to allow the con rod to come off the crankshaft. This is the case here.
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Old 10-16-2019, 07:37 AM   #24
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Re: OS 120 wrist pin removal

Hi All
Found my crock pot at the Reuse it store for $5.00 It has low hi and auto settings Tried it out and works fine Anyone Know what the auto setting is for?
Thanks Al
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Old 10-16-2019, 08:35 AM   #25
cope
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Re: OS 120 wrist pin removal

Not yet Len
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