lycoming 200 wide deck

[Scotty1]

My son and I just purchased a 12foot by 7 foot3 sled and we purchased a Lycoming 200 wide deck to go on it. we are in need of a alternator and the bracket, also probably gonna put on a new starter. my question is we heard that there was some automotive alternator and starter that would work, but don't know what one. any info would help if this is a good idea or not . plus we are going to have to build a motor stand for it, so any info there or pictures would help also. this will be both of us first journey into the AIRCRAFT WORLD so any input would help maybe best prop also .I WAS THINKING MAYBE A 68 NGQ WHAT YALL THINK :dontknow: :scratch: :cheers: THIS IS GOING TO BE A PROJECT BOAT THE BOTTOM OF THE HULL NEEDS QUITE A BIT OF WORK

 

[SuprchgedPalmBeach]

Call Norman Clay-863-357-3400 he will set you up with the alternator/starter package.

 

[GMAC 76]

68 NGQ is what i run on my 200....best prop i ever bolted on it

 

[Gary S]

Agree with calling Norman Clay

 

[Scotty1]

do you fellas have a ball park figure for the alternator and bracket , starter would like to have a general idea before i called him. the billfold is a little light after the recent transactions. thank s for any input

 

[Slidin Gator]

Starter is about $160, his price is competitive with the good ones for Toyota. Bracket I don’t know. Alternator and belt you can get from Autoparts store. GM SI10 alternator 70’s through early 90’s. Most use a 1 wire.

Make sure to run a ground direct to the starter housing on the mount bolt.

 

[Scotty1]

Slidin Gator is that supposed to be GM S10 or what

 

[Slidin Gator]

Slidin Gator is that supposed to be GM S10 or what

No, It is a GM SI10 type alternator (not an alternator for an S10 truck). The SI10 is the general model of the alternator used on all GM trucks up until the early 90's. Lot's of variations.

This is one option for a 3 wire version, a "3A" type
https://shop.advanceautoparts.com/p...0-P?navigationPath=L1*14920|L2*14999|L3*15587

If you want a single wire (the method most folks use), this is one option (a "SEAV" type, SE = Single Wire)
https://shop.advanceautoparts.com/p/driveworks-alternator-p7127seav/5210003-P

I don't remember if these numbers need to be re-clocked or not, I just have a bunch on my shelf that I mix and match as needed. Just make sure to check the connections are where you want them. These are 63 amp alternators, which should be all you need to run a couple of frog lamps. But you can go bigger if you want.

 

[Slidin Gator]

The best thing about aviation engines with mags is you don't really have to give the alternator too much thought. As long as you got a good battery, you are good all day/night without an alternator. So I have no issue using the cheapest reman I can get.

Here are a couple of belt options that should work. I like the cogged belt, the other is my spare that a buddy gave me (in return for him using my spare one weekend).

 

[Slidin Gator]

68 NGQ is what i run on my 200....best prop i ever bolted on it

I'm with GMAC on this, the 68" NGQ is a great all around prop, you won't go wrong with that choice unless you are looking for maximum speed (Razor etc.) or maximum push (72" NGQ). That engine will push a 72" prop well for maximum ground push. But assuming your primary use is running in the Rez, go with the 68 like GMAC says, look no further.

 

[Scotty1]

Thank you fellas for your response and the info does any one have any pictures of the construction of the motor stand for the 200 WIDE DECK so we could get a general idea on how to build one. thanks again

 

[BobBrack]

https://diamondbackairboats.myshopify.com/collections/engine-mounts/products/lycoming-nickel-plated-motor-mount-alternator-bracket

 

[kwanjangnihm]

Scotty here is a few photos and a link with basic info tubing size etc :salute:

https://southernairboat.com/phpBB3/viewtopic.php?f=85&t=29777

 

[Scotty1]

Thanks Kwan we pretty much knew about the metal part of it ,just not to sure about the single mount at the prop end where it attaches and the bushings and things like that. i am sure once we get started we will figure it out i hope but more 4 cylender stands pictures would be nice, THANKS ALOT

 

[Slidin Gator]

Scotty,

The pictures that Kwan posted are O-320 engines using the smaller Bushing mount ears (I forget what they are called?), they also are just using the bottom two engine mounts, plus a nose mount.

Take a look at pages 2-3 of my build thread that covers installing the actual mounts. If this matches what you need, I can post further details on finding the bushings. I am pretty sure that your IO-360 is outfitted with the larger size ears that utilize the larger rubber mounts with the dampening gel I show.

https://southernairboat.com/phpBB3/viewtopic.php?f=85&t=72194&start=25


All of my boats use all 4 engine mount ears and No nose mount. Lot's of folks look at my stuff as a curiosity, but this is how the engines are mounted in a plane! You will never find a plane with a nose mount on the engine. The advantage of the nose mount setup is the engine stand is shorter since it only needs to reach the bottom mount ears. I think the cantilevered setup on my Stossel boats is cleaner. Either will work.

Here is a 6 cylinder stand with the larger size mounts.

Here is an O360 mount, using the larger bushings and the extensions.

The 4 cylinders typically use the same bulkhead spacing as a 6 cylinder, so the engine stands have extensions. These pictures show an O320 with the smaller bushing mounts.

 

[Slidin Gator]

I double checked my stuff. The large bushing mounts are LORD Dynofocal. 7/16" diameter bolts seems to be standard, 4 of them are holding my IO-540 (angle valve) up. In my O-540 build thread I had to drill out the new mounts because the stand was built for 1/2" bolts. Not an issue for your new stand build.

Here is way more than you want to know about LORD Dynofocal mounts:
https://www.lord.com/products-and-s...nd-defense/fixed-wing/general-aviation-mounts

For future reference (because the links below will be dead soon) Google these terms/part numbers. I don't know where to find a brochure with actual dimensions, these are just the part numbers that I know worked for me. Other folks may have more info (I hope):

LORD J-7763-33 J-9612-8 76005

If you read through the LORD link above, it provides service limits for compression and eccentricity. Generally the used stuff comes in within spec, but near. Use your judgement, these limits are for certified planes, which means they have plenty of life left for the Experimental aviation folks and us airboaters. Even used they are not cheap, so don't pay for junk.

Here are a couple of options for you.

https://www.texasairsalvage.com/main_view.php?editid1=171364

https://www.texasairsalvage.com/main_view.php?editid1=240482

 

[Scotty1]

Thank you Sliden Gator i like the look of the single mount on the prop end and 2 on the other, that will probably be the way we will do it. does the single mount have a specific place to bolt up to ,the motor is down at my sons place so cant go out to look. that was the pictures that i was wanting to see. thank you for the help

 

[Gary S]

http://www.classicairboats.com/Photos/com.austinmichael.commerce.Item/Large/23531-1246112596410.jpg

You will need motor mounts and cones along with rear motor mounts. Here is a link to classic airboat. The rear mount NormanClay has. You might ask him about the motor mounts.

 

[GMAC 76]

i dont know if it is still available but aircraft spruce used to sell a kit for the dynafocal mount 4 cyls it was everything ya need but you had to assemble it and weld it up it was designed for airplane home builders and was really slick

 

[Scotty1]

Well this is probably gonna sound dumb but is there a tag or some markings on this motor ,where i can tell exactly what model it is so we can buy parts for it . we found the case numbers and the carb# but dont know much else other than its a 0360 angle valve wide deck. the carb we beleave is a MA6 AA would still like to see some pic of exactly how and where the prop end single mount works