t-max97

My Feedback: (9)

I just got a new o.s .46 la and no matter how much I richen it it runs very hot so I took It apart and theres not a head gasket on it and it didn't come with an exhaust gasket either! I pretty surprised an os engine would be missing a gasket[&:]. I called then and they are sending me a gasket but the more I think about it i think I should get my engine replaced just to be safe. Do you think I should get it replaced?

Lnewqban

I would ask for replacement under warranty.

t-max97

My Feedback: (9)

I think that would be the smart thing to do I just hate having to wait even longer before i can fly my plane lol.

Ernie Misner

Look for any score marks on the piston or liner before you decide whether to keep it or not.

Ernie Misner

Hobbsy

My Feedback: (102)

It should not have an exhaust gasket, I have four LAs, I'll check for head gasket. I'm pretty sure it should have a aluminum looking head gasket. I'll be back.

When you first pop the head off it appears to not have a gasket but gently prying upward in one of the bolt holes will get this.

fizzwater2

My Feedback: (61)

the LA is a bushing engine, right? How much oil is in your fuel?

earlwb

Did you buy the engine from a USA dealer? Or was it bought overseas and shipped in? Did you buy the engine used from someone else?
The overseas engines are setup with high compression as they do not use nitromethane in their glow fuel like most everyone does in the USA.
So using more than 5% nitromethane in a engine setup for no nitro glow fuel is not good on the engine.
What brand fuel are you using and what nitro-percentage is in the fuel?

aspeed

Sometimes the head gaskets are squished inside the head groove and you can't see them.  I check for the gap between the head and piston and if it is around .015" you likely don't need a gasket at all unless it is burning plugs out.  It is just another source for leaks if it is machined properly. I never use exhaust gaskets anyway.  It shouldn't be running hot though.  I have a .40 LA that gets hot too.  I just run it on the verge of a 4 stroke and it is good.

t-max97

My Feedback: (9)

Im sorry guys I feel really stupid lol it was there it was just stuck to the top.[:-] And I took the plane to the club for the first time today and it ran fine when it was in the air. lol

llindsey1965

My Feedback: (-1)

guys i know this has nothing with the thread but i need help!!!! i have a 1/4 scale great planes patty wagstaff that i ran over my wingtube and it is no good been looking for a tube for 2 months now ,, measurement is 30.4 mm or 1 3/16 x 665 mm or 24 3/16 i will take either alum or composite thanks , hope you can help my email is [email protected] other wise my plane is garbage have tried everywhere on the internet they are on back order from tower and great planes have been for 2 months

Lnewqban

Any machine shop could fabricate one aluminum tube with those dimensions from a tube of bigger exterior diameter and heavy duty walls.

llindsey1965

My Feedback: (-1)

tried that they said it is a odd ball size     was hoping someone somewhere would know someone that had one  Thanks

thepamster

This place sells wing tubes though your dimentions seemed odd.

http://www.tntlandinggear.com/

LARRYKOP

Go to home depot or Lowes and get a piece of 1 1/4" Dowel Rod and then get some body to turn it down on a Lathe. I'm about 100 miles from you if you can't find anybody else. I have a lathe.
[email protected]

blw

My Feedback: (3)

No problem. The thread probably caused a lot of readers to think. Glad you asked.

t-max97

My Feedback: (9)

lol yeah trying to figure out what the problem was when there wasn't one.

OliverJacob

My Feedback: (12)

I have a Great Planes Extra 300 Patty Wagstaff. And Ijust measured the tube - it is 30mm. Yours might have been bent.

Hobbsy

My Feedback: (102)

I am a fan of the LA series because of their simplicity and user friendliness, they are built tough and their conservative porting makes for a great Diesel conversion.

the pope

The ones Ive seen had enough go to pull a trainer around pretty good . Good enough that I bought one and seeing it weighs about the same as a 25 Im gonna whack it on one of that size planes . Oh yea the ones Ive seen were abused pretty badly and kept coming back for more . Cheers the pope

mike109

G'day

I've had a couple of LA 46s. And I have recommended them to a couple of learners. I like their simplicity, I like the fact that they are pretty tough and survive crashes better than the more complex ball raced engines. I like their economy and they are a reasonable price too. They are also very reliable.

I used to have one in a World Models Skyraider Mach 1. I rarely got to fly it. Everyone else liked to fly it so much that I rarely got to. My club president loved to borrow it to show newcomers what it was like to fly a model.

There is a diesel converted one that turns up at the Cowra Diesel Weekend every year. It really screams and has been doing it for about 6 years now. The bloke made his own diesel head for it.

Cheers

Mike in Oz

snir2001

My Feedback: (1)

Well, the crankcase build quality of the OS's is very good, you do NOT need any exhaust gasket.
But, again, the last good OS was the SF series, since than they become worse and worse...
I said it once and I will say it again, get yourself an ASP (AKA Magnum, AKA SC, AKA Evolution) from HobbyKing, they run BETTER than OS (if break-in properly).
You know what? for the money, get two of them...
The are simple, reliable, cheeeeep... the best value for money, and run perfect. It's ain't Rossi nor Webra, but hey, neither OS...
I have some OS's, I cherish and love my OS FSR and OS SF, but the FX and AX went where they belong, to the trash.

llindsey1965

My Feedback: (-1)

the part is gpma 2328  and it gives the dimensions  and yes i bent mine it got ran over  on tower hobbies

llindsey1965

My Feedback: (-1)

thanks larry will try that thought a wood dowell might add extra weight

Hobbsy

My Feedback: (102)

Here's another that makes a fine Diesel, I had the head for 3 or 4 years before I could come up with the .61SF engine.

blw

My Feedback: (3)

I agree about the Evolutions. Just my opinion, but they seem to be designed as the top end offerings from Sanye over Magnums and ASPs. I wouldn't knock either of those either. I've run most of the line and they all seem to be hot engines at reasonable prices. OS engines aren't priced to be repaired, imo.