H2Ad 160 hp

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Homegrown
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H2Ad 160 hp

Post by Homegrown » Thu Jul 27, 2006 12:31 pm

Has anyone ever run one of these lycoming h2ad motors? I put one on my buddies boat that he had bought fom me which used to have a 180 hp and it runs better or at least just as strong as the 180. I heard those motors where stronger than a regular 160 but it was definately noticable.

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cowboy
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Post by cowboy » Thu Jul 27, 2006 1:18 pm

Yeah Vento,
I've heard those are strong runners as well.
They are supposed to have factory roller rockers in them also.

I have also heard that they are a bastard case when it comes to parts though, Many parts are not interchangeable with other lycomings.

Least that what I've heard.

Rick's got one on his ride.
Seems to do real well.

Check it out.


http://www.southernairboat.com/photopost/showphoto.php/photo/2350/cat/526/page/1
Last edited by cowboy on Thu Jul 27, 2006 5:43 pm, edited 1 time in total.

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dblj006
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Post by dblj006 » Thu Jul 27, 2006 2:05 pm

This has some good info for the H2AD. You have to login to YAHOO to
search the group though.

http://groups.yahoo.com/group/lycoming/

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Whitebear
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Post by Whitebear » Thu Jul 27, 2006 10:29 pm

The bear just grinns :)

Scotty
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rick
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Post by rick » Thu Jul 27, 2006 10:59 pm

I know I like mine P.Vento.

That H2AD has a little more compression than the regular 160. It comes with 9:1 while the standard 160 has 8.5:1.

I replaced an angle valve 170 with mine & the power seems to be about the same. If anything, I'd say the H2AD might be slightly stronger.

I've got about 100 hrs. on mine (it was a runout) and with the exception of what seems to be moisture in the mag. ocassionally, I haven't had any problems with it.

These motors did come out with some crankshaft & camshaft problems in the late 70's when they started building them. If you want to read about it, click this link & scroll down about 3/4 of the page to "The O-320-H2AD story".
http://www.prime-mover.org/Aviation/C172.ENGINES.html

Rick

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Whitebear
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Post by Whitebear » Fri Jul 28, 2006 12:02 am

Thanks Rick, very good writeup. I bookmarked this one.

Scotty
"The Constitution is not so the government can restrain the people, it is so the people can restrain the government." Patrick Henry
The government cannot give anything --
that they have not first taken from someone else.

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Post by Moritz » Fri Jul 28, 2006 8:09 pm

This engine requires an additive add to the oil. If you use Aero Shell 15-50 it has it in. You can use a single visocity oit Arero Shell 100Plus 50 wt for summer 40 wt for winner down to 25 degrees. The additive is to keep fromwearing the cam shaft out. This enginee was a new deign in 1977 & only produced for a few years. There are not many parts that are interchangable withe other 0320 Lyc.

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