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Author Topic: CS 46 Engine  (Read 6272 times)

Online Allen Eshleman

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CS 46 Engine
« on: March 17, 2025, 10:16:25 AM »
I have a CS 46 engine, made in Shanghai China. It is set up with a venturi and an NVA. Does anyone know anything about these? Are they good/bad/in-between.  It appears to be a ball bearing engine.  It looks a lot like a Magnum BB engine. 

Offline Motorman

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Re: CS 46 Engine
« Reply #1 on: March 17, 2025, 04:43:39 PM »
If it seems like a good piston fit it might be worth working on. I would take it all apart and clean it then put in Boca Bearings. Some of those CS engines had sand in them from the casting process and China bearings are questionable.

MM :)
Wasted words ain't never been heard. Alman Brothers

Offline M Spencer

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Re: CS 46 Engine
« Reply #2 on: March 19, 2025, 09:03:43 PM »
All those white men look the same ( Chinese Joke . )

Thats Likely a CHROME liner assembly . If its BRASS outer , it is . If its all plated . Its Nickle. or nickasil ! .

I gotta SC ( not CS - but it LOOKS the same ) which has the thicker crank web , so throws out the longitudeinal on the crank interchangeability .
and as it has a bigger bore , the liner O D is big . BUT all these things are sort off FSR OS related . and SF . Copies from HP 40 , almost .

THUS : the bits probly fit other things .

I assume its a ' soft ' crank with a pressed in ' needle ' ( hardened ) crank pin . ( Crank'll bend in a wipe out . tho can hammer straight .
Bearings same as FSR / SF etc . And Enya 50 !

So , swaping out , the bore & head bolt pattern are wocher lookat . My Soopa Coustom ! has a bigger Crank Pin . and the rods blown .And its rotten with rust .

So , pull the back plate .LOOK init . might need to strip & clean it .



Assume its this ugly sucker . If you dinnae know how to check the liner timing ; Put a prop onit . Look at the zorst . Turn the injun with the piston just at the top of the PORT , till the prop is
FLAT .
Now , if the injun aint moved , & you swing the prop back till the ports closed . barely . If the PROP went 180 deg. ( 1/2 turn) ( it wont ) the timing'd be 180 .
If it went 1/4 turn it'd be 90 DEGREES . Itll likely go just past 1/4 and 1/8th . Wich is 3/8 th !  which'd be 135 . But it will actually go 10 degrees past . to 145 .
Unless youve got a protractor / degree wheel .
or its a ASP ( acceleration Speed and Power . wot gottit by going 160 whichis pipe timed ) all the ASP parts binterchange with OS & their CLONES ( millions of em ! )

SO , Yr CS is a bitofa OS Clone . AND the piston liners the most valuable part .

.312 venturie . ( .280 to . 320 ormore )  12 x 4 or 12 x 6 prop . see wot works . be o.k.with a tounge muffler . to lighten it up a little . Suck it and see . you maybe lucky
and it'll back off down hill . like a FSR 45 / SF 46 . ( Id guess its a SF copyishish ). My SF 46 likes a thinned 12 x 6 wood . and'll tow ten ton . 4 - 2 . But with a 9 mm intake sucks like a S Tigre 60 . which it matches .

So There !  S?P Is the piston clean , un scratched . Will it hold Comp. at tdc , 10 or 30 seconds . ( Turn to TDC . wait .WHEN you turn the prop - the HELD Comp. Presses it . If its held . )

Sorta thing you can open / slot the mount holes , to throw in something . Maybe wants the tank down a notch to get a equal run . Muffler Type seems to affect this . Std wanting 1/8 down , others Zero . ( in line )
ALSO some of these suckers SIDE MOUNT with the intake over outside can get the fuel inboard of spraybar . Wotll woik weel well . Mate .  H^^

Offline Steve Helmick

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Re: CS 46 Engine
« Reply #3 on: March 20, 2025, 03:04:41 PM »
deleted by request
« Last Edit: March 22, 2025, 06:35:11 PM by Steve Helmick »
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline Brett Buck

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Re: CS 46 Engine
« Reply #4 on: March 20, 2025, 03:07:48 PM »
I've always wondered why Matt's pictures don't show up, or at least, not usually. Could they be over 1000kb? Or are they stashed on one of those photo hosting sites that folded their tent?   010!  Steve

     I think I am seeing all of them. They are almost always out-of-focus (the picture in this thread being a rare exception) but they usually show up and show, er, something.

     Brett

Offline Steve Helmick

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Re: CS 46 Engine
« Reply #5 on: March 20, 2025, 03:26:39 PM »
So the picture Matt tried to post in this thread doesn't show up for you either? I think a lot of stuff he posts are scans of magazine articles or pictures, which might 'splain the fuzzies. 

See yas in Roseburg?   H^^ Steve
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline Brett Buck

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Re: CS 46 Engine
« Reply #6 on: March 20, 2025, 03:31:23 PM »
So the picture Matt tried to post in this thread doesn't show up for you either? I think a lot of stuff he posts are scans of magazine articles or pictures, which might 'splain the fuzzies.

   No, I see it, and it is uncharacteristically in-focus and properly-exposed.

     Brett

Offline M Spencer

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Re: CS 46 Engine
« Reply #7 on: March 20, 2025, 08:56:39 PM »
The computers a bit dim . ;) . Gettem whereI findem . Goooglee pictures , mainly . or links from there . Mate .

The CS is pretty much a bit like the Chinese Magmum . ( Whereas the Taiwanese Magnum ( and Royal & TT 45 ) ARE OS FSR . Component Interchangeability 99 % )
The tooners got into the Ch. Magnum . Dunno but cut top face of transfer port + Hemi Head ? ? . The Later chunder tiger .46 maybe a Fx clone . dunno . But Mr Smith
said E' raised the toppa the transfer a few degrees . As I was given a box of em , Ex RC , and theres three in there - But Beariongs Needed ! , the one Ive flown in a
60 inch 60 ounce magnum plane ,  :P dragged it authoritively throough a mild gale on a 12 x 6 prop . But didnt do the ' rich cut downhill ' trick . But didnnt really runaway ,
Either .
So , when we steady the hand & clear out the debri , maybe we'll see if we can ' cut the port ' top edge say 20 thou . ( 1/2 m.m. or so ) and it should be hunky dory .

So , if this is what yours does , thisis wotyerd do , if you had a Bantam .  ;) https://www.bude-electrician.co.uk/pdf/BSA%20Bantam2.pdf



For Sooth : https://stunthanger.com/smf/engine-set-up-tips/raising-intake-ports/#google_vignette

Your Fing is likely 145 / 148 Ex. BLOW DOWN they whine should be 30 degree or less , To ' switch ' . Which is 15 degree . A Side .  But getting it down to 10 ,
on these ' late model ' schneurle ported high speed suckers , is more like it . Thereabouts . IF IT NEEDS IT . Tweeny Thou. for starters . 30 might blow it .

ID drag it out in a rent a wreck , throw it on 65's , Try a 12 x 6 , set at the break . Then try a 12 x 4 , pref a 12 x 4 three blade . And THEN YOULL KNOW
if it seems something like right . Wot We're prattling on about , is ' backing off ' , or ' engine brakeing' Vertical . Down Hill . or better .

The FSR 45 likes a 4 inch , the 40 a 5 inch . The Sf some'd says not fussy ? . But people tried allsorts , initially - they ran 40 FSr etc on 13 x 6 . And set the tank down 1/8 inch .
The ABC Dont Mind a TOUNGE MUFFLER ( and it wont cook the piston ring ) but if it IS ringed , my poisonnle thought is let the heat get out , with a toob muffla .

But that thing should drag 60 ounces around , no sweat . on 10 %Nitro . Even on none , running well . The SF rc which is similar guts , is good , dead stock . Like a LA 46 .
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
This is probly the SAME ANIMAL , bar the cylinder timing . Looks like the Soopa Coustome , tooe . https://sceptreflight.com/Model%20Engine%20Tests/ASP%2046.html

Just to confuse the issue ; https://sceptreflight.com/Model%20Engine%20Tests/OS%20Max%2040SF-S%20and%2046SF-S.html

These are the ' second generation ' production schneules . Then they went square , then flat head . * to follow Garifore's lead .  S?P
* = didnt ' plug in ' . SO assumeitslike the photo . but in those tests theres late square CS's . But follow 4 lines. back . And See , wottle shedoo . And hang on , A runnaway could snap the strings .so outdoors , please .


Offline Brett Buck

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Re: CS 46 Engine
« Reply #8 on: March 21, 2025, 01:33:06 PM »
The computers a bit dim . ;) .

   If you mean the "picture not showing up" problem, that is an issue on Steve's end.

     Brett

Offline Steve Helmick

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Re: CS 46 Engine
« Reply #9 on: March 21, 2025, 04:13:10 PM »
Brett, you DO see the picture in Matt's post #2 in this thread? I went to the link that Matt posted and saw his post there, complete with all the pictures.  (Reply #6 on: September 04, 2017, 09:10:05 PM) Mysterious...

I don't see how that's a problem with my computer. Please 'splain! Windows 10...using MS Edge. Yeah, it's not what Randy Powell would use, but my son built the computer for me for Christmas...and he IS tech support. Responds quickly and hasn't yet turned it over to the FIB.  **)  Steve 
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline Brett Buck

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Re: CS 46 Engine
« Reply #10 on: March 21, 2025, 06:11:54 PM »
Brett, you DO see the picture in Matt's post #2 in this thread? I went to the link that Matt posted and saw his post there, complete with all the pictures.  (Reply #6 on: September 04, 2017, 09:10:05 PM) Mysterious...

I don't see how that's a problem with my computer. Please 'splain! Windows 10...using MS Edge. Yeah, it's not what Randy Powell would use, but my son built the computer for me for Christmas...and he IS tech support. Responds quickly and hasn't yet turned it over to the FIB.  **)  Steve

    I see the picture in his original post, and in your quote (which would be nice if you edited out...). It is definitely at your end, it is possible you have the security settings set too high, and it can't (refuses to) load his 3rd-party link. Which is:

Code: [Select]
https://i.ebayimg.com/images/g/h~YAAOSwXuxmCC3e/s-l1600.webp


 You could try navigating straight to it, might be revealing.   I have no idea beyond that, but his links pretty much always work for me.

      Brett

Offline M Spencer

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Re: CS 46 Engine
« Reply #11 on: March 21, 2025, 10:05:09 PM »
Think I ' borrwed ' it from ebaY. aND IT WORKS . USUALLY THATS GOT THE nO gO , LIKE WORTHPOINT OR WHATEVER .

bUT THIS IS r c u , SO SHOULD BE O.K. , iTS just an assumption , THAT this IS THE GUYS MOTOR ( tHERES A LATER g51ISH 51 OF THAT MALE , AND A Mecoa dead ringer , saw yesterday .




Offline M Spencer

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Re: CS 46 Engine
« Reply #12 on: March 21, 2025, 10:10:59 PM »


The FX is the squared off cylinder fin , theres a CS clone of , too .

Looks like the CS , if its the same timing as the SF , would be as good as a SF .  :o But with a more durable liner . Hard Chrome .
The nickle has good wear qualities , but dosnt like grit / dust . So intake filters would help .

Offline M Spencer

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Re: CS 46 Engine
« Reply #13 on: March 21, 2025, 10:28:42 PM »
   If you mean the "picture not showing up" problem, that is an issue on Steve's end.

     Brett

NO .  ;D

" The Computer never makes mistakes " !    LL~   LL~   LL~



think THIS is the peak of PRACTICAL tecnology .
The minimilist ( parts count ) appropriate to Stunt ' concept ' .
The SIX was a split Ford axle , front . Like a Trials Car . & Allard .
So was nothing really new .


Which is Why Everbody still flys NOBLER derivitives . With the odd exception .  ;D  S?P





the Olde ' Bare Essentials ' approach . But , If plan view at 50 foot , they ' all look the same ' , so , 1953 ? got the basics right , and its been ' refinement ' since . ?



Had the same haircut , at that age . And the same plane .  ;)






Offline Steve Helmick

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Re: CS 46 Engine
« Reply #14 on: March 22, 2025, 10:39:20 PM »
Was that Phil Hill in the UPE-9? Sterling Moss in the assembly pic. I saw Phil Hill race what was said to be the first McLaren sports racer at Pacific Raceway, Kent, Washington, USA. Lovely car, metallic red, Traco Oldsmobile V-8. Lost to the pair of Chaparrals with the flipper spoiler, Chevy smallblocks and automatic transaxle...quiet and fast!  y1 Steve

PS: Sorry to disparage your photo postings, bro. Got my IT department to retune something, so I can now see the pic of the CS .46, as Brett predicted. It looks like an ASP or what we got as Magnum XL's, except for the abbreviation for chook poo cast onto the bypass. The speed and racing guys over here tend to report very unpredictable quality with the CS brand. More likely bad than good, actually. ASP/Magnum engines are generally pretty consistently good, but cranks are not good enough steel for high rpm use.   
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline M Spencer

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Re: CS 46 Engine
« Reply #15 on: March 23, 2025, 08:38:24 PM »
Looks like Moss . But dosnt say . Complimented my Norton . Turns out HJe had one ( Commando ) . But mine was quicker .  S?P

That There Olds Mobiles , Hydroplane books comments on 2.5 litre  destroked B. O. P. Race motor , which Wails . Once Heard never forgotten . etc .
So 1960 odd to 2000 . Then theres the MG 6R4 derivative ( lost 2 Cylinders ) & Used in the XJ 220 !

The liddle Lotus : Patrick Joseph McGoohan was an Irish-American actor of film, television, and theatre. Born in New York City to Irish parents, he was raised in Ireland and England

XJ 220.


Repco Brabham RB 860 derivative ( Of Buick Oldsmobile Pontiac 215 cube . )



" It is reported that Roger Penske bought the wreck of a Cooper T53 F1 car after driver Walt Hansgen crashed out of the 1961 US Grand Prix. Penske replaced the damaged chassis tubing and added full-width enveloping body work and the car became known as the Zerex Special (after his sponsor). Penske sold the car to Bruce McLaren in 1964 who apparently widened the chassis and fitted a 3.5 litre Traco-Oldsmobile V8 engine. That car was what eventually led to the first Can Am type car that McLaren Cars built. "
" Penske won his first race in the Zerex Special, the Los Angeles Times Grand Prix, the fourth round of the USAC Road Racing Championship. He went on to take a number of podiums and wins at Monterey and Puerto Rico, winning the 1962 title. In 1963 he competed in the SCCA National Sports Car Championship with wins in Maryland, Cumberland, and Brands Hatch (UK). "




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