RunRyder RC
WATCH
 5 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 3447 views POST REPLY
HomeAircraftHelicopterGasser Model RC HelicoptersOther › Hanson 3d Max no worky :(
04-02-2009 03:12 PM  9 years agoPost 21
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

lets not go there about Women with dirt in their carbs

I am geek, and I am proud lol

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-05-2009 10:16 AM  9 years agoPost 22
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

ok, pulled exhaust off today to see what that side of the piston looks like.
Oh dear.
Out comes the motor, and off with its head
Piston is badly scored down the exhaust side, cyclinder is scored as well.
The ring on the exhaust side is worn down flush with the piston, intake side is fine.

It had a hard life from the outset lol.
1st was the tuned pipe, god knows what that did with some extremely poor running.
Then I had my Gv1 gear ratio incorrect and revved her to around 15k at the motor.
Last straw was running a velocity stack while not flying off grass or tarmac.
yes yes I know I know, Ive learned loads in that time though.
So Im looking forward to the rebuild and the next stage of my gassers life.

What Im wondering though, is how much does Hanson charge for a 3d Max cylinder, piston,ring, gaskets, piston pin and circlips?
Rough idea so I dont have a heart attack lol.
Our dollar is stuffed compared to US dollar. Ours buys 66 cents to your dollar.

I was looking at this http://www.davesmotors.com/s.nl/c.8...it.A/id.1185/.f

DDM dont list a lightened piston, but they do have a regular cylinder thats ported.

Just weighing up options really.

Cheers

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-05-2009 11:22 AM  9 years agoPost 23
shawmcky

rrElite Veteran

Isle of Wight,United Kingdom

My Posts: All  Forum  Topic

Hi Gorn
Do you mean the ring is stuck in the groove on the exhaust side?I just bought a ported 26cc barrel assembly from DDM and looks good.Try Oneill brothers Racing as well.Is the scoring very bad?You might be able to clean it up for now.The piston ring might just be pinched in the piston,if you remove it carefully you may be able to restore the groove to free the stuck ring.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 11:33 AM  9 years agoPost 24
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

the piston is beyond repair though, and the cyclinder....well I dont trust it lol.
Not sure if the ring is just stuck or worn badly. Not going to mess with it due to the other damage.
have sent an email off to Hanson, will see what the cost will be there first i think.
Am very keen to see what the new 27cc is like the Billme is talking about.
But that might have to wait a lil while for me, we'll see.
Things are looking up lately

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-05-2009 11:55 AM  9 years agoPost 25
shawmcky

rrElite Veteran

Isle of Wight,United Kingdom

My Posts: All  Forum  Topic

Piston Broke
Fair Enough,if its bad it not worth messing with,good luck with your parts hunt.What time is it there,its 12 midday here.Regards Mike(whats more sun is shining and the lawn mower started)

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 01:19 PM  9 years agoPost 26
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

Thanks

time now is 8.18pm.

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-05-2009 01:55 PM  9 years agoPost 27
Justin Stuart (RIP)

rrMaster

Plano, Texas

My Posts: All  Forum  Topic

Am very keen to see what the new 27cc is like the Billme is talking about.
This is what I'm waiting on too!!!

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 03:40 PM  9 years agoPost 28
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

Bought my parts from Hanson, total cost shipped was $270AU
Al was very helpful as always.
Started the break in process today, using ashless mineral oil and the stock muffler.
Needles are 1 1/2 on both, vibrates like a 10 cent bed lol.
I managed to get about 2.5l through it today.
No idea on HS, but its not high. Initially I actually had low HS woddle/nodding, so yeah, its not revving much yet lol.
Last 2 flights I bumped the curves up a bit, and did some medium paced FF and some short full power climbs (maybe 4 seconds).
Apon landing I let it idle for 1 minute, kill it, then move the piston to BDC and let completely cool.
Im not moving the needles until the gallon of mineral oil is done.
Then switching to Amsoil Sabre at 40:1.
Sure has got loads of compression now.
The ring wasnt actually worn, it was the classic stuck ring.
I will be looking further into that marine oil additive that breaks down carbon deposits.
We'll see.
Im just really glad to be flying gas again

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-23-2009 05:34 PM  9 years agoPost 29
Billme

rrElite Veteran

MS

My Posts: All  Forum  Topic

When you do switch over, try running a whole tank on the ground, with no load, at operating RPMs with the new oil....

PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 05:38 PM  9 years agoPost 30
TaleGunner

rrElite Veteran

Deer Park WA

My Posts: All  Forum  Topic

When you do switch over, try running a whole tank on the ground, with no load, at operating RPMs with the new oil....
WHY? new trick? Idea?

CRASH! GLUE! REPEAT!
Spectra-G, Ion X-2

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-23-2009 05:59 PM  9 years agoPost 31
Billme

rrElite Veteran

MS

My Posts: All  Forum  Topic

I have always done this on my machines, and have told others if they wanted to do it..

Mineral oil is not my favorite, but it does cut the ring quick.. The problem with mineral oil, is when you switch over, there seems to be more exothermic reaction causing extra heat...This heat, with the extra heat of load, from hovering can stick a ring easy....

This can happen with any oil change, but the only time I stuck a ring changing oil was when I was testing mineral oil...I had to clean the ring twice to find out what was going on....

To add to this, I would wash the engine out with the new fuel mixture before cranking the engine..

PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 06:32 PM  9 years agoPost 32
Justin Stuart (RIP)

rrMaster

Plano, Texas

My Posts: All  Forum  Topic

When you do switch over, try running a whole tank on the ground, with no load, at operating RPMs with the new oil....
Do you mean with no blades?

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 06:37 PM  9 years agoPost 33
Billme

rrElite Veteran

MS

My Posts: All  Forum  Topic

No, run with blades on..The engine always needs a certain amount of back pressure, or load...Load at one or two degrees is fine

PM  EMAIL  GALLERY  Attn:RR  Quote
04-24-2009 04:28 AM  9 years agoPost 34
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

Thankyou Bill
I will definately do that today.
Much appreciated

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-24-2009 05:24 AM  9 years agoPost 35
Justin Stuart (RIP)

rrMaster

Plano, Texas

My Posts: All  Forum  Topic

So your talking about running a whole gallon through the helicopter with it on the ground at 0 to -1 degree pitch? Is this at full throttle the whole time? This will take a few hours I imagine.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

PM  EMAIL  GALLERY  Attn:RR  Quote
04-24-2009 05:36 AM  9 years agoPost 36
Billme

rrElite Veteran

MS

My Posts: All  Forum  Topic

I don't think I said run a gallon, maybe run a tank at operating rpms with the new oil..

No, that would not mean full throttle, just whatever it takes to run the operating rpms of your particular machine..

Do not feel bad Gorn about using this oil, it is a cutting oil as far as I'm concern for machinery... So long as someone knows how to handle it, then its perfectly ok to use it for that purpose...

PM  EMAIL  GALLERY  Attn:RR  Quote
04-24-2009 05:54 AM  9 years agoPost 37
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

Hi Bill
Yeah, I was loathe to use that Mineral oil (Briggs and Stratton ashless), but I want a quicker break in than using full synthetic from the start.
I will run 2x tanks through at mid stick with the synthetic when I change over later today.
I wont be changing the needles until I have burned though a gallon of the synthetic as well.
Its quite cool here today, as was yesterday, engine cooled off very quickly and was nowhere near hot on landing.
Thanks for the advice, always learning, always a good thing

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-25-2009 06:30 AM  9 years agoPost 38
gorn

rrElite Veteran

Western Australia

My Posts: All  Forum  Topic

Well I finished my gallon of mineral oil, and a ran a tank through on the ground of Amsoil at half stick.
I could hold my finger on the motor cooling fins for about 3 seconds immediately after running.
Pulled the muffler off last night for a look at the piston, ring and bore.
No carbon, all very clean looking.
Ive put my Zimmerman back on and will be doing some more flying today.
I think Im going to tweak the needles a tiny bit, as I think it sounds more like 8 stroking than 4 lol.
I will try it 1st without any change and see how I go.
Im not being impatient, just the crackle out of it right now sounds pretty damn awful, really pig rich.
Never sounds like its going to cut out, but lots of vibration and tail kicking.
Just doing lots of slow climbs, medium to slow FF and hovering.
Letting it idle for 1 minute after each flight, then piston back to BDC til engine is cold.
Im finding that its very rewarding to hear the difference in the sound of the engine with every new flight.
Each flight makes more power and gets smoother.
Cheers

For the love of the hobby

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-28-2009 01:51 PM  9 years agoPost 39
sasa

rrNovice

UAE

My Posts: All  Forum  Topic

Bill
I have similar probem but I just change piston ring and i recover presure in cylinder and till now engine run for about 6 litter only with normal tow strock oil so have I start again break in engine procedure or it already done ?

SASA

PM  EMAIL  Attn:RR  Quote
04-28-2009 03:51 PM  9 years agoPost 40
Billme

rrElite Veteran

MS

My Posts: All  Forum  Topic

SASA,

If you change to a new ring, you start all over... If you just un-stick the ring, and use it again, you don't have to....
Since you have run 6 lit, I would just check the ring from the exhaust side, and if its shiny, then you are ok... If its dull looking, you are not broke in yet...

Bill

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 5 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 3447 views POST REPLY
HomeAircraftHelicopterGasser Model RC HelicoptersOther › Hanson 3d Max no worky :(
 Print TOPIC  Make Suggestion 

 10  Topic Subscribe

Saturday, September 22 - 9:31 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online