Notices
Glow Engines Discuss RC glow engines

MVVS Q500

Old 04-04-2024, 07:20 AM
  #51  
Senior Member
 
jaka54's Avatar
 
Join Date: Apr 2021
Posts: 197
Received 17 Likes on 16 Posts
Default

Greg...this is a nearly 20 year old tread!
Sad to say MVVS does not make these 6,5cc Q-500 glow engines any more , nor do they make any glow engines anymore! A sad state of affairs!
Old 04-04-2024, 01:50 PM
  #52  
 
Join Date: Jul 2005
Location: , TN
Posts: 904
Likes: 0
Received 28 Likes on 25 Posts
Default

I bought my green-head MVVS .40 used from my local hobby shop for the carburetor. I planned to try the carb on a Rossi .40. I wasn't too impressed with the fit of the piston/liner on the MVVS. It was loose, but I decided to run it just to see how it would perform. It came with a robust Master Airscrew 11/6" prop, which I felt was too much prop. The MVVS shaft is metric, and a little larger then the standard 1/4" shaft. Not wanting to drill out a standard prop just for something to try on an engine that might be warn out, I just ran the 11/6". I was impressed to say the least! I put the MVVS on a clipped-wing Extra Easy which is almost the size of an original Kraft/Jensen Ugly Stick, and it flew great. I don't know what RPM it's turning. I never checked. It idles well, and I love to shoot touch-and-goes with it. I never tried another prop since it performed so well on the 11/6".
Old 04-04-2024, 11:23 PM
  #53  
Senior Member
 
jaka54's Avatar
 
Join Date: Apr 2021
Posts: 197
Received 17 Likes on 16 Posts
Default

Originally Posted by GREG DOE
I bought my green-head MVVS .40 used from my local hobby shop for the carburetor. I planned to try the carb on a Rossi .40. I wasn't too impressed with the fit of the piston/liner on the MVVS. It was loose, but I decided to run it just to see how it would perform. It came with a robust Master Airscrew 11/6" prop, which I felt was too much prop. The MVVS shaft is metric, and a little larger then the standard 1/4" shaft. Not wanting to drill out a standard prop just for something to try on an engine that might be warn out, I just ran the 11/6". I was impressed to say the least! I put the MVVS on a clipped-wing Extra Easy which is almost the size of an original Kraft/Jensen Ugly Stick, and it flew great. I don't know what RPM it's turning. I never checked. It idles well, and I love to shoot touch-and-goes with it. I never tried another prop since it performed so well on the 11/6".
Hi!
Green head MVVS is not a .40 engine , it is .48!
Old 04-05-2024, 07:35 PM
  #54  
 
Join Date: Jul 2005
Location: , TN
Posts: 904
Likes: 0
Received 28 Likes on 25 Posts
Default

Jaka, Thanks for the information on the green head MVVS. On the left side of my crankcase there is an emboss where typically the displacement is cast in. On my engine the emboss has been burnished off. I would have expected that the displacement would have been stamped on the crankcase there, but it wasn't? When I got it, I disassembled it, and cleaned it up.The bearings were a little rough, but I didn't want to spend any money on it, until I had run it. in view of the fact that the piston/liner fit was so loose. Since it ran so well, I never did anything else to it. I never measured the bore, so I just assumed it was a .40 (or possibly a .46)?
Old 04-06-2024, 03:17 AM
  #55  
Senior Member
 
jaka54's Avatar
 
Join Date: Apr 2021
Posts: 197
Received 17 Likes on 16 Posts
Default

Hi!
None of my MVVS .48 engines had the .48 enbossed on the crank case. The only thing telling that it was a .48 cubic inch engine was the green head. But the latest made .48 engines I received from MVVS all had Blue heads. The .46 MVVS engines had red heads and the latest .40 Q-500 engines made had golden heads.
I still have some engines and spare parts left.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.