Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


Need Norvel engine help Cox_ba12




Need Norvel engine help Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Have you ever?
by cstatman Today at 11:01 am

» Anyone Know what this is?
by Marleysky Today at 10:27 am

» HUGE Estate Lot Acquisition
by davidll1984 Today at 9:23 am

» Stuntman 23
by getback Today at 8:19 am

» Evolutionary .36
by layback209 Yesterday at 7:14 pm

» Fuji 35 Share
by layback209 Yesterday at 7:03 pm

» Space Bug Jr Hop-up kit
by balogh Yesterday at 5:03 pm

» Cox Glow Heads
by Yabby Yesterday at 4:52 pm

» The Strato Bug -Identifying originality
by rsv1cox Yesterday at 11:41 am

» New jerobee running video- I’m back!
by Lukemiester Yesterday at 9:59 am

» music vids.. some of your favorites
by rsv1cox Yesterday at 7:33 am

» Balsa Sources
by rsv1cox Wed Sep 15, 2021 8:00 pm

Cox Engine of The Month
September-2021
crankbndr's

"Cherry Bomb" .051 engine

More info on this engine!




PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


Need Norvel engine help Empty

Need Norvel engine help

Go down

Need Norvel engine help Empty Need Norvel engine help

Post  batjac Sat Jan 25, 2014 1:20 am

Well, I went back to cleaning my desk again.  And, again, I got sidetracked.  I have these two Norvel engines.  Both came from LMH helicopters.  They both have the thrust washer for the LMH heli clutch, and both are threaded for 5-40 bolts.  My question is about the numbers on the side.  One engine is numbered 6100166 and the other is 7122014.  Does this mean that the first engine is a .061 Vmax6 engine and the second one is a .074 Vmax7 engine?  I don't know why the one on the right has a long tube on the venturi and the other has a short tube, unless LMH decided later on that the longer tube got cooler, cleaner air somehow by moving the suction point away from the crutch?
Need Norvel engine help DSCN1063_zpsc2b0221d

The only other markings are on the other side on the upper cylinder area.  The one with the number 6100166 has 1.0BEP written on it:
Need Norvel engine help DSCN1065_zpsc0d08151

The one with the number 7122014 has unclear writing.  It looks like 1.0BP-PY maybe?
Need Norvel engine help DSCN1068_zps542faa36

Any ideas what these numbers mean?  I'd ask this on the Norvel forum, but no one has posted to that forum in months.

Also, I was just curious.  Has anyone ever ran a Norvel engine with .049 glow head?  I'd imagine the compression drops, and therefore the speed.  But, it should run okay, yes?  Just a stray thought.

The Mix n' Match Mark
batjac
batjac
Diamond Member
Diamond Member

2019 Supporter

2020 Supporter

Posts : 1999
Join date : 2013-05-22
Age : 58
Location : Portland, OR, USA

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  ekitten2 Sat Jan 25, 2014 1:53 am

yes i have run a norvel with a cox head...only because i need that engine running ...an yes the power was down
ekitten2
ekitten2
Gold Member
Gold Member

Posts : 335
Join date : 2011-08-08

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  Surfer_kris Sat Jan 25, 2014 2:01 am

I don't know much about the helicopters, but both engines are .061 in size (from the marking on the left side) so they would both have been in/for the Vmax6, I would assume.

The heads are the same for the .049 and .061 engines.
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1794
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  batjac Sat Jan 25, 2014 5:40 am

@Surfer_kris wrote:I don't know much about the helicopters, but both engines are .061 in size (from the marking on the left side) so they would both have been in/for the Vmax6, I would assume.

The heads are the same for the .049 and .061 engines.

So the 1.0 BEP somehow equates to 1cc displacement?

The Student Mark
batjac
batjac
Diamond Member
Diamond Member

2019 Supporter

2020 Supporter

Posts : 1999
Join date : 2013-05-22
Age : 58
Location : Portland, OR, USA

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  Surfer_kris Sat Jan 25, 2014 7:03 am

Yes, the numbers 1.0 stands for 1cc aka 0.061 cubic inch...
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1794
Join date : 2010-11-20
Location : Sweden

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  RknRusty Sat Jan 25, 2014 9:54 am

Bernie's clamp ring heads and drop-in plugs are the same compression ratio as stock Norvel heads.

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist
RknRusty
RknRusty
Rest In Peace
Rest In Peace

2019 Supporter

2020 Supporter

Posts : 10869
Join date : 2011-08-10
Age : 65
Location : South Carolina, USA

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  fredvon4 Sat Jan 25, 2014 11:14 am

I run them very successfully with a head adapter cut for Nelson plugs, 4 head shims to start and get first few runs on the engine then play with shims and nitro to get high RPM consistent runs (IN THE AIR)

(actually my first one I tried Rusty's way with a low compression Cox head, then back to factory head, and then to the Galbreath Nelson adapter)

I do not waste time with the muffler
I do adapt a Cox fine thread NVA as per Ken Cook and Rusty on this site
I do run bladder

very cost effective engine for me as the Cyclon and Fora are expensive and hard to get



fredvon4
fredvon4
Top Poster
Top Poster

2019 Supporter

2020 Supporter

2021 Supporter

Posts : 3474
Join date : 2011-08-26
Age : 66
Location : Lampasas Texas

Back to top Go down

Need Norvel engine help Empty Re: Need Norvel engine help

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum