Ernie Misner

Greetings! The new OS 4-strokes look great except for the prince of course. Any owners out there? How are you injecting after run oil in them?

Thanks,

Ernie

w8ye

My Feedback: (16)

The only way to get oil in them is through the carb

Kweasel

My Feedback: (29)

If you care about keeping your engines forever then install a nipple in the backplate for flushing. I wonder about the longevety of the new OS fourstrokes since they have done away with the bronze valve giude/seats.

w8ye

My Feedback: (16)

There should be no problem to install a nipple and keep it plugged.

gkamysz

My Feedback: (19)

I honestly doubt this will be an issue. High silicon content aluminum will serve the same purpose.

NM2K

My Feedback: (14)

Oh, you mean like in the Chevy Vega engines, made so many years ago?

Nope. I want real bushings or ball bearings. That tells me that the engine was not designed to be a throw-a-way, like so many products are today.


Ed Cregger

Broken Wings

My Feedback: (20)

I've got a FS-81a, it runs fantastic. I've never had one single problem with it. I'd buy another if I needed it.

I'd like to try one of the new OS 95's

Ernie Misner

Thanks for the replies guys. Are you using any ARO in your 81a???

Thanks,

Ernie

blw

My Feedback: (3)

You don't see any Vegas out on the road either. There are probably more B-25s flying than Vegas still running.

freakingfast

My Feedback: (3)

None with the engine type it came with anyway. Seen some engine conversions, but even that was many years ago.

gkamysz

My Feedback: (19)

What failures of the Vega can be attributed to the block material? Wikipedia has a nice writeup on the Vega. There may not be many Vega rolling these days, but there are many premium makes producing quite a few vehicles using the exact same block design without issue. This just shows that being unaware of technology is the only reason to shrug off a simple change as ineffective. Do your due diligence before posting inaccurate information about a product you don't even own, because you heard about something 40 years ago.

NM2K

My Feedback: (14)

OS Engines died with the passing of Mr. Ogawa. I have two NIB OS .55AX engines that I just can't bring myself to use. Why? They are ugly - and that is enough of a reason as far as I'm concerned. I don't doubt for a second that it is because of my age and experience. Truthfully, I'd just rather remember them the way that they were than be disappointed with how they might be. Yes, not logical or scienrific at all.


Ed Cregger

blw

My Feedback: (3)

Greg, I owned one! Trust me, they were junk through and through. I don't care what wikipedia says. Where to begin? Let's see, the distributor cap was always only snug tight because the rubber timing chain meant advancing or retarding by ear every day or so. The unibody construction was another name for cheap and flimsy. Everything was cheap and flimsy. The blocks had a nasty reputation of cracking. Oh yeah, oil pans out of cheap pot metal. I got to discover that on my own.

Okay, you guys can laugh at me. I owned a Vega. But, it was a GT with racing stripes!

the Wasp

My Feedback: (1)

I looked at the Chevy Vega a different way, I looked at the GT as a beautiful car that had great potential, just mount in a 500HP SB with a 4-speed and a shortened 12 bolt Rearend with some fat tires and go

Jim

ton2di

My Feedback: (182)

Going back to the new OS, I think the alpha (FS-a) are the ones without the breather nipple (changed the bearings twice on my friend's 110). The new 95V has it on the right side (breather nipple) near the cam area.

Ernie Misner

My 55AX's seem very beautiful to me BUT..... my old SX's and FP's are beautiful in a different and time-honored way.

Ernie

Ernie Misner

>>> The new 95V has it on the right side (breather nipple) near the cam area >>>

Ahhhh so they wised up and put a nipple on that new one? Does it come plugged?

Thanks,

Ernie

gkamysz

My Feedback: (19)

http://en.wikipedia.org/wiki/Alusil

proptop

My Feedback: (8)

The wiki article doesn't mention the Vega engines porosity problems...the head gasket problems...and all the recalls...hmmm..
The Cosworth Vega was IMO the only "good" one to come out of the factory.

But to try and keep "on topic"...a couple of friends have the O.S. 1.10 and it looks nice...good performance...and quiet...but I (like a few others here ) wonder about their longevity.

buzzard bait

I'd like to know who has put a nipple on the 81a. I'm afraid to put fuel in mine till I know how to protect it. Another guy in the club got one and pretty soon it started sounding like a garbage truck. He opened it up and the bearings were totally shot. Out of warranty, OS charged him a bundle to fix it. Now he's afraid to run it too.

Jim

Ernie Misner

Jim, you have the right idea. Put the nipple in before you get going without it. Just pull the backplate off, drill, and JB Weld in a nipple. Check for location where no contact will be made with the back of the crankshaft, etc. Or flush the nipple off smooth with the inside of the backplate.

If the nipple is in the backplate you'll want to point the plane nose down when you inject a big slug of ARO. I use ATF and air tool oil mixed 50/50 but either will work fine. OR, get a can of outboard fogging oil in an aerosol can and you can squirt that in under pressure. It is is very cool to do and it forces the piston up to TDC when you give it a squirt!

Ernie

Sport_Pilot

There were other issues with the Vegas, including overheating to the point of turning the aluminum plastic. The silicon would come out and the cylinder would be ruined. Caused by some problem in the cooling system. Briggs and Stratton has had high silica aluminum bores for lawnmower engines for years. They worked well, and run slightly hotter than a water cooled car on a hot summer day.

Sport_Pilot

Well that must have actually worked out well. Now every car has unibody. The last body on frame was the 2007 Crown Vic.

buzzard bait

Thanks Ernie. Never heard of outboard fogging oil.

Is there a forum someplace where people can talk about Chevy Vegas?

Jim

Ernie Misner

Look for the CRC brand of fogging oil at any large marine department. It's cheap there, but expensive if you buy the Mercury brand or whatever at a small marina.

Ernie