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Tech Talk => Projects => Topic started by: msisco on April 18, 2014, 04:15:56 PM

Title: New exhaust time! 1974 Hallet 21' RC.
Post by: msisco on April 18, 2014, 04:15:56 PM
Upgrading the old logs to some Dana Marine Vortex manifolds and 4" through transom tips with internal flappers.

I cut some plywood with a 3 1/4" hole saw and epoxyed it in place to use as a solid center hole for the larger 4" hole saw for the new tips.

Once I have the new manifolds and 4" through transom tips installed I am having custom 4" S pipes made. Aluminum or Stainless S pipes tbd.

Anyone interested in my old complete setup? I will list the setup in the classified section as soon as time permits.

454 Big Block Logs. Teague Stickers on logs included. LOL!

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Title: Re: New exhaust time! 1974 Hallet 21' RC.
Post by: GeneralLee on April 18, 2014, 04:27:41 PM
Looking nice...how the hell did you get the old tips off? I'm having a really rough time getting mine to pop off.



Title: Re: New exhaust time! 1974 Hallet 21' RC.
Post by: msisco on April 18, 2014, 04:29:54 PM
I though I should also give some credit to Preston my four year old son for doing a great job  on this project so far! His twin brother Gavin is also doing his part which is just as important!

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Title: Re: New exhaust time! 1974 Hallet 21' RC.
Post by: msisco on April 18, 2014, 04:35:04 PM
I had to wedge a highlift jack from the inside and jack the tips out. I was worried I was going to blow the transom out the back. Unfortunately I had just used 3M 5200 to put those trumpet tips in after the gel coat was done. I was stressing out that the gel coat was going to blow off at a minimum. I used a liberal amount of that 5200 when I put it together. Glad to say there was zero damaged.

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Title: Re: New exhaust time! 1974 Hallet 21' RC.
Post by: GeneralLee on April 18, 2014, 04:46:03 PM
Get them started young, good. Thx for the info. I have no idea what the PO glued those tips in with but I don't think it's from this world hehe.



Title: Re: New exhaust time! 1974 Hallet 21' RC.
Post by: msisco on April 18, 2014, 04:46:59 PM
Done with the drilling before my first beer! Maybe I did this backwards?

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