HORN TUBE

1950 - 1952, M38, questions, discussions, regarding anything related to the M38.
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JMZ421
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HORN TUBE

Post by JMZ421 » Tue Dec 15, 2020 6:48 am

On the M38 steering box, there is not much in the TM manuals, unless I missed it, on the horn tube when rebuilding the box. Is this horn tube something that is usually replaced and/or removed and resealed when a rebuild occurs? I know the tube is pressed in and I read to place some permatex on prior to install. Your help is appreciated, This is the part where the horn switch screws to. John


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DieFledermaus
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Re: HORN TUBE

Post by DieFledermaus » Mon Dec 21, 2020 10:49 am

I usually use a little sealer when re-enstalling. Make sure the tube is not cracked and is the correct length, so oil from the box does not run down inside. Sometimes the tubes have broken and are shorter from past rebuilds. I have NOS tubes and switches, should you need them. Regards, Mike
AUG 1944 MB, US NAVY
MAR 1952 M38
APR 1952 M38
1957 F2A AERODROME TRAILER
1993 M101
A & P mechanic
Delaware 19958

JMZ421
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Re: HORN TUBE

Post by JMZ421 » Mon Dec 21, 2020 6:50 pm

Thank you for the advice and much appreciated. I am now at the point of trying to remove my original steering wheel and had to order a puller.
Once I get that off I will be open up that steering box and see what I got. Today, I pulled out the horn rod with the original brass adjuster on it. It did feel a little mushy at the botom. I am thinking you are correct about the horn and grease in there. The horn switch also does not work. Thanks, John

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DieFledermaus
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Re: HORN TUBE

Post by DieFledermaus » Mon Dec 21, 2020 7:05 pm

You'll want to press in new sector shaft bushings. Originally, there was a long and a short but the short ones are hard to find. You can use two long ones; they work just fine, but don't cover up the oil port. They need to be reamed. Don't over do it--keep em tight when you put in the new sector shaft.
AUG 1944 MB, US NAVY
MAR 1952 M38
APR 1952 M38
1957 F2A AERODROME TRAILER
1993 M101
A & P mechanic
Delaware 19958


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