Mark/Moki G180RC gas engine    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version


Garage Sequestration Liquidation
Seller:  Mr DJ
Details:   $999,999.00   |  4/29/2013   |  Classified Ad
We will rotate YOUR AD in this spot if you select "Forum Featured" when placing or editing your ad!

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> Mark/Moki G180RC gas engine
Page: [1] 2   next >   >>  

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
Mark/Moki G180RC gas engine - 8/17/2011 2:15 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		Didn't know if anyone would be interested in pictures of this engine. I have done searches and have not turned up much on this engine.

As you can see from the pictures Mark engines now come in a white box.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize
Click to see fullsize image.
Click for fullsize


< Message edited by computermonkey -- 8/28/2011 9:59 PM >

Hide Signatures
       Post #: 1

RE: Mark/Moki G180RC gas engine - 8/17/2011 3:19 PM   
mrbigg



Posts: 4734
Joined: 10/30/2004
Last Login: 4/24/2013
From: Streator, IL, USA
Status: offline 		Looks good. Fire her up and get some video!

_____________________________

Smooth, like Keith Stone.

Hide Signatures

(in reply to computermonkey)
       Post #: 2

RE: Mark/Moki G180RC gas engine - 8/17/2011 4:01 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		The airplane I was going to put it on is now unavailable till who knows when. As time becomes available I might bench mount it, do a break-in and see what it does.

Hide Signatures

(in reply to mrbigg)
       Post #: 3

RE: Mark/Moki G180RC gas engine - 8/28/2011 8:59 PM   
captinjohn


 

Posts: 12085
Joined: 1/25/2002
Last Login: 5/18/2013
From: Hesperia Michigan, MI, USA
Status: offline
quote:

ORIGINAL: computermonkey

The airplane I was going to put it on is now unavailable till who knows when. As time becomes available I might bench mount it, do a break-in and see what it does.

I have a Moki engine.  I was thinking of converting it to gas sometime. Do you know if the one in photo has needle bearings on the rod?  Also what oil ratio do they recomend in the manual?   Thanks,  Capt,n

_____________________________

I never met a engine I did not like !

Hide Signatures

(in reply to computermonkey)
       Post #: 4

RE: Mark/Moki G180RC gas engine - 8/28/2011 9:56 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		Both ends of the rod are needle bearing.

This is copied from the owners manual:

BREAK-IN OIL:
We recommend the use of a petroleum-based oil, such as Lawn Boy Ashless or Stihl Chainsaw oil for breakingin all MOKI engines with a ratio of 25 to 1. Use the break-in oil until approximately 5 gallons of fuel has been
run through the engine. ALWAYS MIX THE OIL ACCORDING TO THE MANUFACTURERS
INSTRUCTIONS!
Using the break-in oil will help to ensure the proper seating of the rings to the cylinder walls. This is
IMPORTANT if the full potential of the engine is to be realized.
NORMAL OIL AFTER BREAK-IN:
After break-in we recommend using AMSOIL Series 2000 2-Cycle Racing Oil mixed according to the
manufacturers instructions (40:1). It burns very clean and provides excellent protection. It is important to
note that mixing AMSOIL (and other oils) at a lower than recommended ratio (more oil) may cause carbonbuild-up, ring seizing, and plug fouling. ALWAYS MIX THE OIL ACCORDING TO THE MANUFACTURERS
INSTRUCTIONS!
Other high-quality synthetic or mineral oils may be used provided that they are intended for 2-stroke use in
air-cooled engines and are mixed according to the manufacturers instructions. Mineral oils are preferred
because they have fewer tendencies to foul the spark plugs.


I have seen somewhere on the forum that someone is making needle bearing rod for Moki engines, but I think it is only on the crank end.

Hide Signatures

(in reply to captinjohn)
       Post #: 5

RE: Mark/Moki G180RC gas engine - 8/28/2011 10:14 PM   
captinjohn


 

Posts: 12085
Joined: 1/25/2002
Last Login: 5/18/2013
From: Hesperia Michigan, MI, USA
Status: offline 		I am sure the gas Moki will be a very good and long lasting engine if the right oil and ratios are used. The Moki engine is one of the best built engines I have seen inside and out!    Capt,n

_____________________________

I never met a engine I did not like !

Hide Signatures

(in reply to computermonkey)
       Post #: 6

RE: Mark/Moki G180RC gas engine - 9/5/2011 6:03 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		I sent an email to Moki asking about the construction of there gas engine line. Here is the response.

The gasoline engines piston and sleeve the same, but is little different, in the wrist pin diameter.
The sleeve steel and internal hard chrome, and high silicium aluminium piston in the both engine.
Not parallel to the sleeve, a little conical.
We use the hard aluminium conrod with steel needle bearing both place.
We use the best bearing in the Moki engine from Japan NTN, Koyo, and Thorington.

Hide Signatures

(in reply to captinjohn)
       Post #: 7

RE: Mark/Moki G180RC gas engine - 9/5/2011 6:52 PM   
av8tor1977



Posts: 5459
Joined: 5/4/2003
Last Login: 5/18/2013
From: Lukeville, AZ, USA
Status: offline 		That's a nice looking engine. Many of the "glow converted to gas" engines have marginal cooling area for gasoline use, and of course bushed rods. This has needle bearing rods, and it looks like more cooling area than other converted engines. Might be a good one!

It will be interesting to see how the power is... It seems to me that when one gets into the 30cc sizes, that "through the crank" rotary valve induction may be a bit restrictive and limit power. I could be wrong however.... (It's happened before.)

AV8TOR

_____________________________

If it is not SCARY, it is NO WHERE NEAR powerful enough!!

Hide Signatures

(in reply to computermonkey)
       Post #: 8

RE: Mark/Moki G180RC gas engine - 9/5/2011 7:34 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		I'm going by the history of Moki engines when I order this back in February. I also order the 1.4 gas engine. The 2.1 glow engine makes huge power for a front induction so I would believe this to be true for the 1.8 gas.

Looking for a inverted muffler for it right now. After I get on I'll put it on a test stand and try it out.

Hide Signatures

(in reply to av8tor1977)
       Post #: 9

RE: Mark/Moki G180RC gas engine - 9/12/2011 11:33 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		Made a video off the iphone of the engine.
Man I can't believe how good it ran for the first time after just adjusting the carb.

APC 18x8 7900 to 8100 rpm and it's not even broke in yet.

http://www.youtube.com/watch?v=Gm3PiyVl_H8

Hide Signatures

(in reply to computermonkey)
       Post #: 10

RE: Mark/Moki G180RC gas engine - 1/29/2012 7:38 PM   
AJsToyz



Posts: 2689
Joined: 2/13/2006
Last Login: 5/18/2013
From: Maybee, MI, USA
Status: offline 		Nice video, did you ever find an airframe for it?

Andy

_____________________________

www.Deathbychina.com

Hide Signatures

(in reply to computermonkey)
       Post #: 11

RE: Mark/Moki G180RC gas engine - 1/30/2012 2:45 AM   
mikes68charger


 

Posts: 478
Joined: 10/19/2010
Last Login: 5/18/2013
From: , OH, USA
Status: online 		 any one eles got this motor up and running 

Hide Signatures

(in reply to AJsToyz)
       Post #: 12

RE: Mark/Moki G180RC gas engine - 1/30/2012 4:30 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		I still haven't picked out a airframe for the 1.8 engine but I think I will get a Seagull Extra 540 60 size for the 1.4. http://www.horizonhobby.com/products/edge-540-60-arf-SEA4000

I also bought the Mark Gas 1.4RC. My latest run with it was 9200rpm on a APC 16x8 using a Bission side exhaust and a Moki venturi. The venturi added 200rpm's on the APC prop.
The Chinese carb that engine engine came with gave me a little trouble.

Here are my notes on the Mark G1.4RC engine carb: The started easy and idle great, but as soon as I would open the thorttle past 25% the engine would go lean and die. I double check my filter and fuel lines. I had a Walbro WT540 I purchase for another project not being used just yet so I decided to give it a try. After a few adjusts the engine came alive. Note that this is the first run on the engine. Fuel is 91% octane 100% gas (no ethanol) 25% oil lawn boy. Idle great and ran up to 9000rpm on a APC 16x8 prop running a Bission side exhaust muffler. I would suggest getting the Mark venturi to add. This added 200 more rpm's to my engine.

Back to the Chinese carb, I was interested in finding what was causing the starvation. I disassemble the diaphragm side and found no issue dirty etc. Flip the carb over and disassemble the pump side. After removing the cover I notice the gaskets where placed in the wrong order. I flipped the gasket and reassembled. Next I replaced the WT540 and tested the engine. Engine started easy as before. After a few adjustments the engine ran the same rpm as the Walbro. I have read one other time someone had the exact same problem. I email them but they never responded so I wasn't able to find out if they where having the same issue, but my guess and reading that the person was having the same symptoms as mine I bet it was.

Both engine are very well made. If you have ever had a Moki you would know what I mean. I also have a Moki 1.35 glow engine. It turns the same 16x8 APC prop on 0% nitro at 9000rpm's.

Hide Signatures

(in reply to mikes68charger)
       Post #: 13

RE: Mark/Moki G180RC gas engine - 1/30/2012 5:00 PM   
AJsToyz



Posts: 2689
Joined: 2/13/2006
Last Login: 5/18/2013
From: Maybee, MI, USA
Status: offline 		Very good information! That helps out alot not to have to spend extra money on a carb. Please keep us up to speed when you strt flying these guys!

Andy

_____________________________

www.Deathbychina.com

Hide Signatures

(in reply to computermonkey)
       Post #: 14

RE: Mark/Moki G180RC gas engine - 1/30/2012 7:43 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		I see you are in the Ultra Sport brotherhood. I used to have a Ultra Sport 1000 and thought about one for the Mark G180RC. I think that would be a good match.

Hide Signatures

(in reply to AJsToyz)
       Post #: 15

RE: Mark/Moki G180RC gas engine - 1/30/2012 9:12 PM   
AJsToyz



Posts: 2689
Joined: 2/13/2006
Last Login: 5/18/2013
From: Maybee, MI, USA
Status: offline 		I have a couple of little gassers and am planning on putting one in a US60, figure it would be a great set up. Used to have a mini van and could fly almost anything I wanted but it's with us no more. Now my plane size is limited. I do like the Yak 54 and am a sucker for a Stick. I might build an AMR 30 size stick, would be a fun project.

Andy

< Message edited by AJsToyz -- 1/30/2012 10:22 PM >

_____________________________

www.Deathbychina.com

Hide Signatures

(in reply to computermonkey)
       Post #: 16

RE: Mark/Moki G180RC gas engine - 1/30/2012 10:14 PM   
BigBird1



Posts: 797
Joined: 2/26/2002
Last Login: 4/17/2013
From: Knoxville, TN, USA
Status: offline 		The 1.80 would look nice in a Bridi Big Chaos if you are into sport\pattern flying.. On the same note, his "Sticks" fly them selves.

http://www.bridiairplanes.com/index.htm

I've got a US1000 nib I'll get to sometime.
BB1

_____________________________

I never met a Chaos I didn't like

Hide Signatures

(in reply to AJsToyz)
       Post #: 17

RE: Mark/Moki G180RC gas engine - 2/8/2012 5:57 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		Last weekend I picked up a Goldberg 90 size Extra 300. I think this will be a perfect match for the Mark G140RC.
I also got a Ultra Sport 1000 from the same guy.

I'll try to start a thread soon on the Mark G140RC.

Hide Signatures

(in reply to BigBird1)
       Post #: 18

RE: Mark/Moki G180RC gas engine - 2/8/2012 5:58 PM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		Last weekend I picked up a Goldberg 90 size Extra 300. I think this will be a perfect match for the Mark G140RC.
I also got a Ultra Sport 1000 from the same guy.

I'll try to start a thread soon on the Mark G140RC.

Hide Signatures

(in reply to BigBird1)
       Post #: 19

RE: Mark/Moki G180RC gas engine - 2/8/2012 6:50 PM   
MTK



Posts: 3986
Joined: 5/14/2004
Last Login: 5/18/2013
From: Whippany, NJ, USA
Status: offline
quote:

ORIGINAL: av8tor1977

That's a nice looking engine. Many of the ''glow converted to gas'' engines have marginal cooling area for gasoline use, and of course bushed rods. This has needle bearing rods, and it looks like more cooling area than other converted engines. Might be a good one!

It will be interesting to see how the power is... It seems to me that when one gets into the 30cc sizes, that ''through the crank'' rotary valve induction may be a bit restrictive and limit power. I could be wrong however.... (It's happened before.)

AV8TOR

It would be interesting to see how well the Moki would run on the 25:75 glow:gas mix with 3% oil and a glow plug. AV8TR any plan to make that happen? I'd be interested in the result


_____________________________

Regards,
MattK

Hide Signatures

(in reply to av8tor1977)
       Post #: 20

RE: Mark/Moki G180RC gas engine - 2/29/2012 8:55 PM   
AJsToyz



Posts: 2689
Joined: 2/13/2006
Last Login: 5/18/2013
From: Maybee, MI, USA
Status: offline 		You wouldn't happen to have a picture of the Mark Venturi ?

_____________________________

www.Deathbychina.com

Hide Signatures

(in reply to computermonkey)
       Post #: 21

RE: Mark/Moki G180RC gas engine - 3/1/2012 3:30 AM   
captinjohn


 

Posts: 12085
Joined: 1/25/2002
Last Login: 5/18/2013
From: Hesperia Michigan, MI, USA
Status: offline 		I have a Moki 1.35 engine.  The crankcase compression with the glow plug out is real high. It Has to have the best pumping action to get fuel and air up to the cylinder than any engine I tested.  The engine is very well made.  I rank it as one of the best.   Capt,n   Still in Florida....

_____________________________

I never met a engine I did not like !

Hide Signatures

(in reply to AJsToyz)
       Post #: 22

RE: Mark/Moki G180RC gas engine - 3/1/2012 3:42 AM   
computermonkey


 

Posts: 263
Joined: 9/3/2004
Last Login: 5/18/2013
From: Broken Arrow, OK, USA
Status: offline 		These pictures are of the 23cc engine. The venturi added 200rpm's

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to captinjohn)
       Post #: 23

RE: Mark/Moki G180RC gas engine - 3/1/2012 10:42 AM   
AJsToyz



Posts: 2689
Joined: 2/13/2006
Last Login: 5/18/2013
From: Maybee, MI, USA
Status: offline 		Thank you very much! I couldn't find it any where so this will help.

FYI Bill Jensen is now the US distributer for Moki/Mark engines,parts and service.

Andy


_____________________________

www.Deathbychina.com

Hide Signatures

(in reply to computermonkey)
       Post #: 24

RE: Mark/Moki G180RC gas engine - 3/1/2012 10:48 AM   
AJsToyz



Posts: 2689
Joined: 2/13/2006
Last Login: 5/18/2013
From: Maybee, MI, USA
Status: offline 		Thank you very much! I couldn't find it any where so this will help.

FYI Bill Jensen is now the US distributer for Moki/Mark engines,parts and service.

Andy


_____________________________

www.Deathbychina.com

Hide Signatures

(in reply to computermonkey)
       Post #: 25

Page:   [1] 2   next >   >>  
All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Gas Engines >> Mark/Moki G180RC gas engine
Page: [1] 2   next >   >>  




Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.625RCU1