Search found 978 matches

by Slidin Gator
Tue Aug 04, 2020 8:54 pm
Forum: Aircraft Power Only
Topic: 540 Headers...
Replies: 7
Views: 885

Re: 540 Headers...

I think this quote basically sums it up. All airboat headers are made to be affordable. They are not designed to make power. Thanks, Chuck I have one boat with shorty headers and 2.5" flex into Magnaflows, the other is the 3" shorty with built in resonator blasting onto the prop. The resonator setup...
by Slidin Gator
Mon Aug 03, 2020 11:41 pm
Forum: Aircraft Power Only
Topic: Mechanical fuel pump going bad?
Replies: 7
Views: 715

Re: Mechanical fuel pump going bad?

I forgot to mention, check the tank vent, them dirt dobbers can clog up a vent and burn up both the electric and mechanical in a 5 minute span. Ask me how I know...
by Slidin Gator
Mon Aug 03, 2020 10:56 pm
Forum: Airboat Tech
Topic: She’s done but needs tuning!
Replies: 13
Views: 1474

Re: She’s done but needs tuning!

Bamaso, I am on-board with Kwan on the ground to starter cable, you will notice the difference. That said, if she won't turn over now, the ground cable is not all that needs sorting. I have new everything in the start circuit, Norman Clay starter, Optima Blue top and #1 AWG ground to starter. I can ...
by Slidin Gator
Mon Aug 03, 2020 6:18 pm
Forum: Aircraft Power Only
Topic: Tsi0540
Replies: 13
Views: 1045

Re: Tsi0540

Seven is correct that the narrow deck, straight valve 540 is the lightest and most robust variation of the 540's, it is a very reliable engine. The less desired comment is based on pricing, Narrow Deck cylinders do get a bit of a premium these days. I run a narrow deck O=540 pushing a 14 foot rivete...
by Slidin Gator
Sun Aug 02, 2020 5:06 pm
Forum: Aircraft Power Only
Topic: Mechanical fuel pump going bad?
Replies: 7
Views: 715

Re: Mechanical fuel pump going bad?

Have you replaced the Racor? Most electric pumps also have a screen on the suction side that should be checked/cleaned.

The mechanical has check valves that might be leaking due to corrosion or debris, the diaphragm is either good or bad, no real in between.
by Slidin Gator
Sat Aug 01, 2020 8:14 pm
Forum: Airboat Tech
Topic: Stossel Palm Beach Hull Riveted Rake Cap Replacement
Replies: 16
Views: 1834

Re: Stossel Palm Beach Hull Riveted Rake Cap Replacement

On to the actual riveting. Rivet hammer, 3X (4X would be better for this job, but 3X is more versatile). Round head attachments and buck bars. https://southernairboat.com/wp/wp-content/uploads/rtMedia/users/2619/2020/07/IMG_3522-600x800.jpg?1596326675 https://southernairboat.com/wp/wp-content/upload...
by Slidin Gator
Sat Aug 01, 2020 6:41 pm
Forum: Aircraft Power Only
Topic: Angle valve 0540 vs strait valve 0540
Replies: 29
Views: 8253

Re: Angle valve 0540 vs strait valve 0540

I'm looking at purchasing 0540 straight valve narrow deck do I need to be concerned about all those abbreviations after the 0540. Any good advice Wikipedia is your friend here for all the model codes. But keep this in mind, with airboat engines there is NO guarantee that the model code on the oil p...
by Slidin Gator
Sat Aug 01, 2020 3:36 pm
Forum: Aircraft Power Only
Topic: Tsi0540
Replies: 13
Views: 1045

Re: Tsi0540

I'm not that familiar with the Turbo's either, but I agree with Diggin on most of his post except for this. The point to all of this is that if the engine is rated at, say, 315 hp, it will still make that power without the turbocharger since you will be operating the engine at or near sea level. I t...
by Slidin Gator
Sat Aug 01, 2020 3:15 pm
Forum: Site Related
Topic: SA Downtime
Replies: 10
Views: 1232

Re: SA Downtime

I guess I should have mentioned, I met FishSticker and many others through SA, So thanks for keeping er running Rick. Whats the scoop on stickers build? He has not posted an update recently? Kwan, a cognition test for you, see if you can pick the word that doesn't belong: Airboat AV Gas Magnetos (2)...
by Slidin Gator
Fri Jul 31, 2020 9:51 pm
Forum: Site Related
Topic: SA Downtime
Replies: 10
Views: 1232

Re: SA Downtime

With the exception of a few hours here & there this old website has been online continuously for about 18 years till this week. Down (3) days...that was pretty rough on me too. Rick Thanks for the hard work putting humpty dumpty back together again. But I'm starting to think that you should just do...
by Slidin Gator
Tue Jul 21, 2020 7:10 pm
Forum: Automotive Power Only
Topic: Is this from detonation?
Replies: 19
Views: 1828

Re: Is this from detonation?

With the bushings worn out I think it could go well past the original timing. Also check the end play of the drive gear. The shims are probably worn out allowing the shaft/gear to push up, which changes the timing further (more advance I think??).
by Slidin Gator
Mon Jul 20, 2020 8:36 pm
Forum: Airboat Tech
Topic: Stossel Palm Beach Hull Riveted Rake Cap Replacement
Replies: 16
Views: 1834

Re: Stossel Palm Beach Hull Riveted Rake Cap Replacement

Yes, the anode would need to be on the outside, in contact with water. DO NOT use magnesium anodes in salt water as it can make aluminum brittle due to excessive current. Zinc is correct for salt water and would be my go to for all waters for simplicity. I don't run any anodes, they would need to be...
by Slidin Gator
Sun Jul 19, 2020 9:34 pm
Forum: Automotive Power Only
Topic: Is this from detonation?
Replies: 19
Views: 1828

Re: Is this from detonation?

It was #3 cylinder. #1 had just started to do the the same. I run a Ford 2100 2bbl. I dont know jet sizes. But I have since found that my distributor was slap wore out. The bushings between the pin and weights was completely gone (both sides) and I believe from the markings under the rotor, im now ...
by Slidin Gator
Sun Jul 19, 2020 9:22 pm
Forum: Aircraft Power Only
Topic: Fuel lift pump
Replies: 3
Views: 621

Re: Fuel lift pump

There are a lot of options for a 5-7 PSI prime pump. But on an injected engine it is best to use a prime pump that makes sufficient pressure to run on if the mechanical pump fails. I'm running Continental Injection on a Lycoming 540, but only a low pressure prime pump at the moment, upgrading the el...
by Slidin Gator
Sun Jul 19, 2020 9:13 pm
Forum: Airboat Tech
Topic: Stossel Palm Beach Hull Riveted Rake Cap Replacement
Replies: 16
Views: 1834

Re: Stossel Palm Beach Hull Riveted Rake Cap Replacement

There are basically 2 different rivet styles, and several materials. Primary rivet styles are Flat Head (AN426) and Round or Button Head (AN470). This picture shows a 3/16" diameter Flat Head and a 5/32" Button Head. https://southernairboat.com/wp/wp-content/uploads/rtMedia/users/2619/2020/07/IMG_35...
by Slidin Gator
Fri Jul 17, 2020 10:27 pm
Forum: Airboat Tech
Topic: Stossel Palm Beach Hull Riveted Rake Cap Replacement
Replies: 16
Views: 1834

Re: Stossel Palm Beach Hull Riveted Rake Cap Replacement

Great info! Thanks for sharing. You beat me to the jokes about the screws not running well. Thanks lariat, I can make a pun... I hope this helps folks understand the processes. So forming involved some marking, some hammering and use of the rivet hammer and buck, on and off the boat. On a new build...
by Slidin Gator
Fri Jul 17, 2020 9:29 pm
Forum: Prop Talk
Topic: WhirlWind Propellers to Answer Your Engineering Questions
Replies: 21
Views: 2352

Re: WhirlWind Propellers to Answer Your Engineering Questions

According to my wife, this is a roll:

Image

She calls these biscuits:

Image

I just eat em.

Dad Jokes Rule :thumbleft:
by Slidin Gator
Fri Jul 17, 2020 9:12 pm
Forum: Airboat Talk
Topic: Greetings from minnesota
Replies: 5
Views: 879

Re: Greetings from minnesota

If you are set on re-purposing the 302 try to look at hdsadey post on here about a direct drive 302 platform and consider some upgrades to that 225hp you are looking at. Good luck however you proceed. Heavy, Good call, Hdsadey is our resident Ford man. Just note that HD's build is a 351 stroked to ...
by Slidin Gator
Thu Jul 16, 2020 10:47 pm
Forum: Airboat Talk
Topic: Greetings from minnesota
Replies: 5
Views: 879

Re: Greetings from minnesota

Snowman, It sounds like you are on the right track. You don't need an outrageous amount of power for lake running, the equation changes if you might need to run dry ground to get from one lake to another, or maybe skip around the locks. Riveting makes for the strongest and lightest hull but you may ...
by Slidin Gator
Thu Jul 16, 2020 10:28 pm
Forum: Airboat Tech
Topic: Stossel Palm Beach Hull Riveted Rake Cap Replacement
Replies: 16
Views: 1834

Re: Stossel Palm Beach Hull Riveted Rake Cap Replacement

By the Rick formula we are 36 beers in. That formula is +/- :) Good thread as usual Slidin Gator. Never had a Stossel, but have been around a few...they are top notch imo. Seen'em run the St. Johns switch grass better than most on our end of the river. Rick The 4 lbs per Hp rule it +/- too, but it ...
by Slidin Gator
Wed Jul 15, 2020 11:48 pm
Forum: Airboat Talk
Topic: Prayers Needed
Replies: 25
Views: 3012

Re: Prayers Needed

:thumbleft:

Get Good Greg :slap:
by Slidin Gator
Wed Jul 15, 2020 9:10 pm
Forum: Airboat Tech
Topic: Stossel Palm Beach Hull Riveted Rake Cap Replacement
Replies: 16
Views: 1834

Re: Stossel Palm Beach Hull Riveted Rake Cap Replacement

The new rake cap is 0.060" SST. Basically, it starts out as a 6 foot length of sheet sheared at 2" wide. On a new build it is easiest to pre drill the flat stainless on the drill press prior to forming. The hull aluminum is then match drilled. Unfortunately we are talking the opposite scenario here,...
by Slidin Gator
Wed Jul 15, 2020 8:50 pm
Forum: Automotive Power Only
Topic: Is this from detonation?
Replies: 19
Views: 1828

Re: Is this from detonation?

Yes, and a very lean condition. The question is, was it only lean on one cylinder or were the rest close? Which cylinder is it? The outside cylinders are normally the leaner ones due to longer/cooler intake passages. If one of the inside cylinders I start looking harder at the intake gasket. Most l...
by Slidin Gator
Wed Jul 15, 2020 8:21 pm
Forum: Prop Talk
Topic: Best prop for my 0-360 AV
Replies: 18
Views: 2286

Re: Best prop for my 0-360 AV

lewisdj1971 wrote:
Wed Jul 15, 2020 10:16 am
Well finally did a coin flip and talked to the guys at Sensenich and decided on a 2 blade 66” JM. Hopefully it’s the right choice for my boat.
Lewis,

Unless you have to pitch that prop past the regular marks, your coin made a good choice. Enjoy :thumbleft:
by Slidin Gator
Wed Jul 15, 2020 8:18 pm
Forum: Automotive Power Only
Topic: Aluminum block
Replies: 3
Views: 762

Re: Aluminum block

I think so, my 55 year old aviation engines are all aluminum and I am mulling more options, all aluminum.

Anything more specific in mind?

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