lycoming. engine help

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slimpickens
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lycoming. engine help

Postby slimpickens » Wed Oct 08, 2014 6:33 pm

I just picked up another boat with a lycoming. Engine and I'm trying to find out what engine it is there are no tags.Everything on it looks aircraft except for the front engine mounts that are not dynafocel. thay. Are just straight drilled holes.Did they use lycoming in ground power units and if so what would the horse power be.Thanks for any information you can give.

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Whitebear
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Re: lycoming. engine help

Postby Whitebear » Wed Oct 08, 2014 6:40 pm

Yes there were some Lycoming GPUs. The two I have seen (in the '70s) were around (?) 90 and a 150, 4 cylinder. Sure don't see many now days though. Rare as hens teeth.
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slimpickens
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Re: lycoming. engine help

Postby slimpickens » Wed Oct 08, 2014 7:00 pm

Thanks bear does this sound like it could be a gpu from the front engine mounts and yes it is a 4 cylinder and is very tight and strong

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Re: lycoming. engine help

Postby sseater » Wed Oct 08, 2014 7:24 pm

post a picture
Image

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John Fenner
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Re: lycoming. engine help

Postby John Fenner » Wed Oct 08, 2014 7:37 pm

If it has a thick boss under the flywheel pulley and not a smooth crown where the seal goes it is a GPU.
I never finish anyth,,,.

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Deano
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Re: lycoming. engine help

Postby Deano » Wed Oct 08, 2014 7:48 pm

If it is a ground power, it would be a 290.
About 125 -135 hp, depending on who you believe.
Am told with 435 AV cylinders would be about 150 hp.
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Bruce
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Re: lycoming. engine help

Postby Bruce » Wed Oct 08, 2014 7:58 pm

picture is worth 1000 words
12 foot Mamba "The Underdog"
Tired Gpu 520,Whirlwind Razor X

slimpickens
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Re: lycoming. engine help

Postby slimpickens » Wed Oct 08, 2014 8:59 pm

I can't seem to get pics to load from my phone my computer took a lightning hit.it does have aircraft jugs everything looks aircraft but the front engine mounts

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rick
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Re: lycoming. engine help

Postby rick » Wed Oct 08, 2014 9:26 pm

If you can email them to me, I'll get them posted: webmaster@southernairboat.com

Rick

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JT540
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Re: lycoming. engine help

Postby JT540 » Wed Oct 08, 2014 9:28 pm

They made a straight mount 4 cylinder. But if the case does not have the mount area drilled for conical bushings then its a GPU if its been drilled could go either way!
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John Fenner
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Re: lycoming. engine help

Postby John Fenner » Wed Oct 08, 2014 11:51 pm

Rick, OT, what happened to uploading pics from phones?
I never finish anyth,,,.

slimpickens
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Re: lycoming. engine help

Postby slimpickens » Thu Oct 09, 2014 8:08 am

Rick I sent you the pics I have thanks for the help.Slim

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rick
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Re: lycoming. engine help

Postby rick » Thu Oct 09, 2014 11:34 am

slimpickens wrote:Rick I sent you the pics I have thanks for the help.Slim

No problem, here's the pics. Click to enlarge:

lyc-1.jpg


lyc-2.jpg


Rick

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Re: lycoming. engine help

Postby rick » Thu Oct 09, 2014 11:38 am

John Fenner wrote:Rick, OT, what happened to uploading pics from phones?

I'll have to look into that John. I got fat, uncoordinated fingers, so I don't do much internet stuff w/the phone.

Rick

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Re: lycoming. engine help

Postby Outlawaircraftengines » Thu Oct 09, 2014 12:39 pm

125 gpu engine. Mechanical lift, converted to aircraft sump setup.
Gary Barber
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