Lycoming Engine Question

David Ricker · Post by **David Ricker** » Fri Feb 17, 2012 9:59 pm

Hi Guys

Can anyone put me on the track to identify a Lycoming IO-360-B4A?

I am looking to find out what it is (said to be 180 HP, 8.5:1 comp, 2700
RPM) and things like is it a "good" or "bad" engine, are there any
things to watch out for like faults or ADs? Is it Dynafocal or Conical.

Any & all info is appreciated.

Thanks

Dave R.

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Legeorgen · Post by **Legeorgen** » Fri Feb 17, 2012 9:59 pm

I Dave,

I looked this engine up in "Lycoming SSP-397 Publication on Certificated
Engines"
and this is what it said.

IO-360-B4A, 180 HP, 2700 RPM, 100/100LL, 8.50.1, Dynafocal mounts,
Bendix fuel injection, S4LN-21 (impulse coupling) and S4LN-magnetos and an
O-360-A4A solid crankshaft. The engine S/N suffix -15.

As far as any plus or minus with this engine... I have no clue, but at least
armed with this information you have a start. I hope that helps.

Bruce G

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Lonnie Benson · Post by **Lonnie Benson** » Fri Feb 17, 2012 10:00 pm

Dave,

According to the Lycoming Certificated Engine List,
www.prime-mover.org/Engines/Lycoming.Lyc-Cert-list.html, The IO-360-B4A is
similar to the -B1B but has S4LN-21 (impulse coupling) and S4LN-20 magnetos
and O-360-A4A solid crankshaft. The IO-360-B1B is the same as the -B1A
except for Bendix Fuel Injection System. The B1A is the same as the A1D
etc. etc. Did not see any mention about type of mounts.

----- Original Message -----
From: "David Ricker" <ricker@dbis.ns.ca>
To: <murphy-rebel@dcsol.com>
Sent: Sunday, March 17, 2002 6:56 PM
Subject: Lycoming Engine Question

Hi Guys

Can anyone put me on the track to identify a Lycoming IO-360-B4A?

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David Ricker · Post by **David Ricker** » Fri Feb 17, 2012 10:00 pm

Lonnie & Bruce

So far this is about what I have been able to learn about this engine although
Grant @ MAM thought he also saw a helocopter ref there somewhere also. I am
going to have to get in contact with Lycoming to get a dimensional comparison
to the type MAM sells & says will fit before I will know more.

Thanks

Dave R.
Elite 583

Lonnie Benson wrote:

Dave,

According to the Lycoming Certificated Engine List,
www.prime-mover.org/Engines/Lycoming.Lyc-Cert-list.html, The IO-360-B4A is
similar to the -B1B but has S4LN-21 (impulse coupling) and S4LN-20 magnetos
and O-360-A4A solid crankshaft. The IO-360-B1B is the same as the -B1A
except for Bendix Fuel Injection System. The B1A is the same as the A1D
etc. etc. Did not see any mention about type of mounts.

----- Original Message -----
From: "David Ricker" <ricker@dbis.ns.ca>
To: <murphy-rebel@dcsol.com>
Sent: Sunday, March 17, 2002 6:56 PM
Subject: Lycoming Engine Question

Hi Guys

Can anyone put me on the track to identify a Lycoming IO-360-B4A?

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