What Lyc. 320's fit in a 7A

[rodcritt]

I have decided to rebuild a used engine . All I know is I want to go with a IO or O320, Fixed Prop maybe later have the option for resale only of a C/S prop, 160hp. Money is always a factor. So my question is what model IO/0320's have been put in to 7A's with out much trouble. Something I can find readly in the used engine market. Yes, I know this may end up costing just as much as a new engine. As for the IO or O the only factor for me is the cold weather in South Dakota. Very little if any acro. in my future. Could some of you who have completed your projects please chime in. I hope to find an engine in the next couple of months.
Thanks for all you help

[az_gila]

...will not work with a -A model due to it's rearward mounted carb. location.

[rodcritt]

Originally Posted by az_gila

...will not work with a -A model due to it's rearward mounted carb. location.

That is exactly the kind of information I'm looking for.

[az_gila]

Originally Posted by rodcritt

That is exactly the kind of information I'm looking for.

...glad it helped.

According to my Parts catalog, the same sump - 72362 - is also used on these O-320 models --
-A2A -A2B -A2D -A3B -B2B -B2C -B3B

Note - this is only a problem on the nosegear models.

[yakdriver]

One thing to think about is resale value. An O-360 can be done for about the same price as a 320. If you look at going prices for RV 6,7,8 you will see that the 360 commands an average of $10,000 more than an equivalent airplane with a 320. Add a C/S prop and it's closer to $20,000. If you are going to get a used engine and rebuild it there is almost no difference in parts cost. If you look hard you can find a good rebuildable 360 for about the same price as a 320. Just wanted to give you a little more food for thought. Don

[FlyingArcher]

Hi Rodney,

When looking for used engine, just keep in mind that some high wing or gravity fed planes have been equipped with engines where the accessory case has no place to install a mechanical fuel pump. This doesn't always reflect in the "magic" letter/number codes Lycoming uses to name their engines.

Best regards

[rodcritt]

Originally Posted by FlyingArcher

Hi Rodney,

When looking for used engine, just keep in mind that some high wing or gravity fed planes have been equipped with engines where the accessory case has no place to install a mechanical fuel pump. This doesn't always reflect in the "magic" letter/number codes Lycoming uses to name their engines.

Best regards

So do you simply have to ask if the engine has a provision for the fuel pump or is there a cross reference list out there that I have yet to find?

[az_gila]

Originally Posted by rodcritt

So do you simply have to ask if the engine has a provision for the fuel pump or is there a cross reference list out there that I have yet to find?

...referenced in the Lycoming Parts Manual for each specific "dash" number.

[N941WR]

Originally Posted by rodcritt

So do you simply have to ask if the engine has a provision for the fuel pump or is there a cross reference list out there that I have yet to find?

Changing out the accessory case to install a fuel pump isn't that big of a deal, I had to do it on my O-290.

There are pictures and comments on my engine page of how to do it.

Probably the biggest issue is that the sump has to come off before you can remove the accessory case. None of this is difficult and if you get a good deal on an engine, it might be well worth the effort.

[LifeofReiley]

Yah yah... A nicely build 320, IMHO is just as good if not better than a 360. I know of a few 7's that sold in the 95-100K range, very nice planes with
320's. I've always loved the 320... most are bullet proof engines. It's all in the Myth.