Search found 47 matches

by BobBrack
Sat Sep 07, 2019 6:13 am
Forum: Aircraft Power Only
Topic: 0 420 i think
Replies: 10
Views: 1010

Re: 0 420 i think

Thats a hayden!
by BobBrack
Mon Jul 01, 2019 11:24 am
Forum: Aircraft Power Only
Topic: 0 420 i think
Replies: 10
Views: 1010

Re: 0 420 i think

https://www.amazon.com/Hayden-Automotive-1260-Heavy-Cooler/dp/B000HEADJ2/ref=sr_1_4?keywords=hayden+oil+cooler&qid=1561994422&s=gateway&sr=8-4 This is what most of us here in florida use. You probably have an O-470 continental. I dont think they make a 420. If you post a pic of the engin...
by BobBrack
Sun Apr 21, 2019 12:57 pm
Forum: Airboat Talk
Topic: 220 GPU Kill Switch
Replies: 16
Views: 733

Re: 220 GPU Kill Switch

Actually from the pics I'm seeing you have a pe150 continental packette engine that at one time in its life had a second mag added and the cylinders drilled for a second mag. Ok...... Here is my suggestion. Remove the mag on the port side of the engine. Keep mag in dry cool area. Enjoy the boat whil...
by BobBrack
Sat Apr 20, 2019 1:28 pm
Forum: Airboat Talk
Topic: 220 GPU Kill Switch
Replies: 16
Views: 733

Re: 220 GPU Kill Switch

No problem. Keep the dual mag set up. You can thank us again later!!!!!
by BobBrack
Sat Apr 20, 2019 6:05 am
Forum: Airboat Talk
Topic: 220 GPU Kill Switch
Replies: 16
Views: 733

Re: 220 GPU Kill Switch

The part sticking ot of the case that has the 2 screws holding it in is the condenser. It should have a threaded stud sticking out of it, It appears this has been broken. There are 4 screws holding the cap on that supports the condenser. Remove them, then remove the condenser and order a new one. Th...
by BobBrack
Wed Apr 17, 2019 5:18 pm
Forum: Aircraft Power Only
Topic: Name this Motor.... No Nameplate
Replies: 16
Views: 1611

Re: Name this Motor.... No Nameplate

Could be an o-320 as well. You would need to measure the cylinder length to know for sure.
by BobBrack
Mon Feb 25, 2019 6:12 pm
Forum: Aircraft Power Only
Topic: O-360 Motor Mounts
Replies: 5
Views: 346

Re: O-360 Motor Mounts

The flat ones ive never seen before but the conical ones you can order from diamondback, panther, alumitech etc. etc.....
by BobBrack
Wed Feb 13, 2019 1:16 pm
Forum: Aircraft Power Only
Topic: 540 short jug info.
Replies: 15
Views: 1172

Re: 540 short jug info.

The theory behind this setup is the piston goes down farther in the cylinder. Thus bringing more air into the cylinder. It also rises higher in the cylinder. Thus making higher compression. I have even seen them with the 540 rods installed. The rods have to be machined in order to turn the rod bolts...
by BobBrack
Sun Jan 20, 2019 2:16 pm
Forum: Aircraft Power Only
Topic: This is an O290 GPU , yes?
Replies: 4
Views: 454

Re: This is an O290 GPU , yes?

I feel confident saying its an o290 but it could actually be a flight o290. The ground power had a peculiar oil sump on it. The carb actually bolted to it just below the mags. Also the gpu wouldnt accept a lycoming flywheel. However the case could be shaved to make the lycoming flywheel fit. These m...
by BobBrack
Fri Jan 04, 2019 10:42 am
Forum: Aircraft Power Only
Topic: Help identifying lyc
Replies: 8
Views: 670

Re: Help identifying lyc

The o360 crank weights are a larger diameter than the o320. That's what hits. Sometimes depending on the casting the big end of the rod will hit as well.
by BobBrack
Thu Jan 03, 2019 4:14 pm
Forum: Aircraft Power Only
Topic: Help identifying lyc
Replies: 8
Views: 670

Re: Help identifying lyc

So it sounds like it is what your saying it is. A narrow deck 320 case ground internally to clear a 360 crank and rods. Then 360 cylinders to top it off. Carburated makes it 180 h.p.
by BobBrack
Sun Dec 23, 2018 4:28 pm
Forum: Airboat Talk
Topic: Lookin For 18mm spark plug helicoil
Replies: 4
Views: 380

Re: Lookin For 18mm spark plug helicoil

If you find the helicoil I have the installation tool. I'm in cocoa. Unfortunately I'm out of the helicoils.
by BobBrack
Sun Dec 16, 2018 3:43 pm
Forum: Aircraft Power Only
Topic: 520 Continental rebuild
Replies: 127
Views: 7828

Re: 520 Continental rebuild

You have to get longer push rods or buy 2 of the adjustable ones.
by BobBrack
Wed Aug 22, 2018 2:08 pm
Forum: Prop Talk
Topic: 0470GPU Prop Rotation question
Replies: 6
Views: 1152

Re: 0470GPU Prop Rotation question

To the person above that is trying to run a 72 x 42 wood prop on a 220 gpu. That prop is way to big. That is the same prop I ran on a built 540 year ago. I would be surprised if your able to turn that thing 2300 rpm. Get one of the newer ground adjustable props so you can play with it some and you w...
by BobBrack
Thu Jul 26, 2018 8:23 am
Forum: Aircraft Power Only
Topic: 0360 pistons
Replies: 2
Views: 588

Re: 0360 pistons

Go online and look up combustion technologies. They make straight valve 10 to 1 pistons. If memory serves me right they are about 125.00 each. I dont think lycoming makes a 10 t0 1 straight valve piston. They do for the angle valve cylinder. Hope this helps.
by BobBrack
Tue Apr 03, 2018 9:12 am
Forum: Airboat Talk
Topic: Lycoming Motor id
Replies: 19
Views: 1792

Re: Lycoming Motor id

prop size tells me it is a o290 bottom end with o435 cylinders. Keep an eye on the crankshaft flange. They tend to crack at the flange to the crankshaft attach area. As seen in the previous photos. other than that they are great little engines.
by BobBrack
Sat Mar 31, 2018 3:08 pm
Forum: Airboat Talk
Topic: Lycoming Motor id
Replies: 19
Views: 1792

Re: Lycoming Motor id

Looks like a o290/125hp with narrow deck vo435 cylinders. It has a wood prop. What size is it? I'll bet it's a 66x32 or a 68x32. Post the size and we can tell you the h.p.
by BobBrack
Sat Nov 26, 2016 1:07 pm
Forum: Aircraft Power Only
Topic: io540 upstack exhaust nuts
Replies: 1
Views: 696

Re: io540 upstack exhaust nuts

Dont fight it. Just pull the valve covers, rockers, pushrods and tubes. Youll be less frustrated at the end of the repair. Ive made wrenches, modified sockets, you name it I've tried it. It's just a pain in the a$$ and you end up scratching the heck out of the tubes. Just make sure you label the pus...
by BobBrack
Mon Jun 20, 2016 8:55 pm
Forum: Aircraft Power Only
Topic: 220/047 conversion
Replies: 10
Views: 1393

Re: 220/047 conversion

I can do it. I havent bought those cylinders in about a year so I would feel uncomfortable throwing out an estimate without making some calls. Im in canaveral groves. Call if you have any questions. 3214031560 Bobby.
by BobBrack
Sun Mar 27, 2016 9:40 pm
Forum: Aircraft Power Only
Topic: 220 GPU crank
Replies: 4
Views: 777

Re: 220 GPU crank

Ive got 2 i just got back from keeners machine shop in Okeechobee. Both are 20/20. 600.00 each. 3214031560 if interested.
by BobBrack
Tue Jan 12, 2016 6:42 am
Forum: Aircraft Power Only
Topic: Looking for a Oil cooler adapter
Replies: 4
Views: 872

Re: Looking for a Oil cooler adapter

I have a couple of those. Call after 5 p.m. eastern. 321-403-1560. Bobby.
by BobBrack
Fri Nov 06, 2015 8:30 pm
Forum: Aircraft Power Only
Topic: 220 oil coolers
Replies: 4
Views: 732

Re: 220 oil coolers

I have one here in cocoa. 3214031560. Bobby
by BobBrack
Mon Sep 28, 2015 7:44 pm
Forum: Aircraft Power Only
Topic: mag not firing
Replies: 41
Views: 2100

Re: mag not firing

Do you hear the impulse coupling clicking when you turn the prop. It sounds like a broke spring in the coupling to me.
by BobBrack
Mon Jun 29, 2015 9:07 am
Forum: Aircraft Power Only
Topic: info on 160hp lycoming to make 170hp
Replies: 6
Views: 898

Re: info on 160hp lycoming to make 170hp

Headers are different as well.
by BobBrack
Sun Jun 07, 2015 8:09 am
Forum: Aircraft Power Only
Topic: First airboat. Have no idea what Ive got myself into....
Replies: 91
Views: 11977

Re: First airboat. Have no idea what Ive got myself into....

That is a lycoming o-290. Most commonly they made 125 horsepower. However I believe they made a few models that were 135 horsepower. They are great engines however rings are quite expensive for them. Most people tear them apart and have the cases bored to accept a o-320 narow deck cylinder and insta...

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