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1
Once You've Joined / Welcome Asanchez87
« Last post by Forum Master on Yesterday at 09:05:58 PM »
Welcome to the CJ DJ 3A 3B Willys Community Forum Asanchez87!

Tell us more about you and your Willys!

We love pics so don't be afraid to post pics of your Willys.
Here we like any kind of them!

You will find a lots of smart people here that are willing to help.
Enjoy your stay,
Pascal and all forum members

2
Engine compartment / Re: How loose is too loose for exhaust flapper
« Last post by SteveKfl on Yesterday at 07:47:50 AM »
For the price shown in the link Rus provided, IMO... it only makes sense to follow Scott's comment... and with the amount of labor involved... to replace it all.  You wouldn't want to do it twice.  You can always make available any useable parts for others that may be "missing" the flapper and/or return spring set up.  My L-Head did not have the set up at all, and has plugs in the shaft holes???  But I live in way South Florida, its original and whole life's usage area, and it hasn't been needed like with elsewhere and colder temps.
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Engine compartment / Re: How loose is too loose for exhaust flapper
« Last post by scoutpilot on Yesterday at 04:48:31 AM »
One should not assume the shaft isn't worn.
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Engine compartment / Re: How loose is too loose for exhaust flapper
« Last post by Rus Curtis on July 18, 2026, 11:23:45 PM »
I was hoping someone with a flat head would jump in on this.  I've read a bunch of posts about it and it seems to be a task.  Here are a few of those posts:

https://www.thecj2apage.com/FORUMS/back-of-manifold-heat-control-valve_topic47808_post484249.html?KW=heat+riser+repair#484249
https://www.thecj2apage.com/FORUMS/leaking-heat-manifold-valve_topic1779_post10886.html?KW=heat+control+valve+bushing#10886
https://www.thecj2apage.com/FORUMS/heat-control-valve_topic9980_post79779.html?KW=heat+control+valve+bushing#79779

The soot you describe was perhaps displayed in one of the posts above.  It doesn't sound like a weekend job to me. 

Here's the kit from AJP mentioned above.  I can see what looks like bushings.

https://www.armyjeepparts.com/p-322-heat-riser-rebuild-kit-exhaust-manifold-636439k.aspx

It would be nice to be able to source just the bushings if everything else works well.
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Engine compartment / How loose is too loose for exhaust flapper
« Last post by squidtone on July 17, 2026, 05:07:53 PM »
Hi there,
My engine has developed a noisy "TAP" RAP type of sound, an obvious exhaust leak at the manifold area. I checked the usual suspects, and eventually I could feel a blast of exhaust leaking by the gasket where the exhaust and intake manifold are bolted together. I figured I had to replace the gasket. I took the works off, but found no leak, but saw to my dismay that there is jet black soot coming out of the shaft where it pierces the casting and holds the flapper. It's pretty loose. I can shift it side to side maybe 0.025". Still, I have a hard time believing it could make that kind of racket.
The wear is in the shaft seemingly. Not so much the casting (or what appears to be some kind of bushing perhaps)

I guess it's too loose and worn, but would you agree it would allow that kind of noise to escape?
Ugh. I don't think it looks to easy to replace that shaft.
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Your DJ-3A Project / Re: 1957 DJ3A
« Last post by SteveKfl on July 15, 2026, 09:09:19 AM »
I hate those "shrinkage conditions"...  lol... but love the progress and pics of the "how" you're going about "solutions".  Thanks for sharing!!!
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Your DJ-3A Project / Re: 1957 DJ3A
« Last post by 48willys on July 14, 2026, 03:53:45 PM »
On the home stretch now, just a little more to do and the tub will be finished with metal work.
Addressing some rust in the fender and riser area.
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Announcements / Re: **CJ3A Page Update ? The Forum is Back Online!**
« Last post by Bob W on July 06, 2026, 06:07:48 PM »
Thank you Pascal.
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Website Feedback / Re: Some Posts Not Visible
« Last post by derekredmond on July 05, 2026, 11:40:19 AM »
Thanks, Pascal.  As far as I can see, all posts are now visible to me also.  That's a big problem solved by the move to the new host.

Derek
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Your DJ-3A Project / Re: 1957 DJ3A
« Last post by 48willys on July 04, 2026, 09:59:43 AM »
Got some of the rear floor repairs done. I've come to the conclusion it would have been better to completely remove the floor, make the repairs and then reinstall it. The rust was worse than I initially thought it was and the patch was bigger than expected, so ran into some shrinking issues. But its getting there and hopefully is the last of the tub work.
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