Antique

My Feedback: (4)

The rubber sealed bearings in a 3W will usually outlast the airplanes the engines are used in...
Same goes for the Zenoha engines I work on, the front bearing on the G26 and GT80 IS the crank seal....

Craig 01

Hi RCIGN1,
Thanks for that bit of information with regard to the Bearing seals.I was of the belief that the sealed bearings would be ok but it is always better to have the knowledge first hand of someone who has experience with sealed ball races as main bearings operated within an internal combustion engine.
Admittedly the seal drag will be greater than the same bearing without seals and in this case with the CRRC Pro 45 is only very slight,and certainly no where near ring drag.Possibly the slight increase in drag might amount to a slight loss of rpm by a couple of hundred at most,not enough for me to worry about considering the bearings life expectancy.The mods i have done should give a few more rpm's,( without adversely affecting low end),than i'm likely to loose to seal drag.
Cheers,
Craig.

Wild Bill 1

Hi Jim

i got my CRRC GF45i from you on the 20th after opening the box my first impression of this engine was wow what a great looking engine and at $299.00 with free shipping what a great deal. i put the engine on my test stand, then using 20-1 oil gas mix with only 93% octane and an old 20x8 master air screw prop after priming the engine with about six flips of the prop and then with the ignition on it started on the second flip and it seems with the factory settings on the carburetor where set pretty good so i dont think i will have to mess with them at this time, and after running the engine for about an hour i got my tach out and it read 7400 rpm and the engine has a good idol and a good transition so i decided to go ahead and mount it on my Wild Hair 80"Yak 54, so far i am very pleased with this engine and will keep you posted with its progress.


thanks bill

kerrydel

My Feedback: (2)

I've got one of these engines, but I'm not certain what 'version' it is. It came factory direct (one of our club members travels to china quite a bit). It has the grey EI module box, and the chromed carb adapter. It is approximately 18 months old.

I tried to start it for the first time tonight. I was not able to do so, and couldn't even get any pops. I know I had fuel at the carb, and the ignition battery checked 6 V loaded. I'm not sure how to check if I'm getting a spark. This is my first gasser, so I'm not certain what I need to do next.

Any help is greatly appreciated.

Thanks

Kerry

XJet

Checking for spark is easy -- remove the plug from the cylinder (but lead the HT lead connected) and make sure it's resting firmly on some of the engine's bare metal surface (or that the grounding ring is still in position around the threaded portion.

Now turn the ignition on and rock the prop so that the magnet on the prop-driver passes under the black sensor bolted to the front of the engine.

You should hear a healty "crack" each time the magnet passes under the sensor. If not, you have an ignition problem.

For what it's worth, I have both a CRRR GF45i (version 3) and a DL50. The DL50 cost $370 delivered and although it does represent a higher purchase price, it is by far and a way better *value* than the CRRCPro.

*lots* more power, trouble-free, absolutely no spark-noise worries and *much* easier to cowl (without the anoying affects of turbulent airflow on a sidedraft carby too).

But some folks are happy with the value-point of their CRRC engines, I just like the fact that I haven't had to convert my DL50 to glow operation in order to get it to run like it should :-)

WesternHobbies

My Feedback: (1)

Hi Kerry,
If you have the gray box this is definitely a V2 engine and depending on the age it could be a early V2 that had some problems. Use XJets description to check for spark and if it is no go you can send it to me and I will fix it for you. Just pay the shipping. You can also call us if you have any questions. 602-647-0165

Sincerely,
Jim
Western Hobbies
www.westernhobbies.com

XJet

I should add that, even though (IMHO) the DL50 represents better value than the CRRCPro, one should never underestimate the value of good dealer support and the US CRRCPro dealer has established a very good reputation for looking after owners of these engines.

The DL50 dealer has only just started providing US-based service and looks to also be keen but there's little feedback available yet.

Craig 01

G'day Everyone,
Finally received the Genuine CRRC Pro-"Brand New Side muffler" from my LHS ,"After a short 3 week wait",The LHS informs me that the appointed australian agent in WA states,"Their is no such thing as a pitts muffler for the CRRC Pro GF45i,nor has the factory supplied a "pitts muffler"for this engine,the side muffler supplied is the only one available from CRRCPro China.
Take a look at the pictures,It appears this unit is a repaired "second hand" pitts muffler.The one apparently, CRRCPro China never supplied for this engine.
This is the service we get here in Australia,from the CRRCPro China appointed agent.
My LHS agrees it is what appears to be A Second hand repaired pitts muffler,the LHS said to bring it back to them if it fails.
Cheers,
Craig.

Craig 01

G'day Everyone,
For those of you out there with an old V1/V2early engine and still have your old inlet manifold (plastic version) you can cut the carb flange from the old manifold and face it both sides with wet/dry grade 400 on glass or flat plate and you have a heat insulator you can position between carb and metal manifold using your favourite jointing sealant/gasket.
Someone might find this useful.
Cheers,
Craig.

The Raven

Can someone explain how you tell which version of the engine you have? I recently purchased a new engine and was told it was the latest version, however; I'd like to know what the differences are between the versions and confirm I have the best combo (not that I can do much about it now).

Craig 01

Hi Raven,
Here is a pic of the V3,
You could also go to www.westernhobbies.com
Jim is the American agent for this engine,this pic of the V3 standard is from his site.
Cheers,
Craig.
Edit: V3 being the current version,Jim has an upgraded version,The V3 supersport that he has worked over for additional performance.

Craig 01

Hi Raven,
I know this thread is an extremely long one but,if you read the whole lot you will find through the thread the evolution of this engine,the changes with each version and the reason why.
Hope your recent purchase is indeed the latest version 3.
Cheers,
Craig.

platero

Hi guys, I have a CRRC 45 in tnt Extra 3D, the engine runs ok in a stand but in the model runs errathic over 5000 rpm, when rpm are less than 5000 runs fine, it is not a tuned problem to me, i think is an CDI problem. The CDI pack is a 1000 mA NiMh Sanyo.
Any ideas???!!! []

XJet

It could also be the airflow over/around the carby causing the problem.

Side-draft (piston-port) carbies are far more susceptible to such problems.

Are you running with/without the cowl?

if with, then take the cowl off and you may find that things improve.

If that's the case, remove and rotate the little metal plate on the bottom of the carb (the one with a small hole in it) so that the hole is pointed to the firewall. This may have a significant effect on improving the cowled operation.

Also make sure there's plenty of clearance between the carby intake and the cowl itself. Some folks cut a hole in the cowl so the engine can suck from outside the cowl.

The Raven

Thanks for the pics guys but my Australian delivered engine looks different to the ones shown. Mine has a black painted cylinder, no velocity stack, and non-anodised prop driver. Additionally my muffler is a single piece of tubing with a single outlet pipe.

Mine may not be the latest model but that does not overly concern me.

I have had the engine apart and found it quite clean. To date I have not run it but I do intend to bench run it soon.

Ace Radio Controlled Models

G'Day From W.A.

It doesn't sound like you have a CRRC 45 engine

I have been selling these in Australia Since the very first version all have had a red cylinder Head ( the only other colour I know of is a blue one branded THOR Not availalable in Australia )

The Newest version in Australia has the carby on the opposite side and has a side muffler

I have included pictures of a mk 1 engine with plastic carby mount A picture of the mk 2 muffler & metal carby mount And the mk3 Muffler ( smaller side mounted box version )

Hope This Helps.

Regards Scott Kerrison

Ace Radio Controlled Models

Perth Western Australia .

The Raven

The engine I have is listed as a CRRC-PRO GF45i which I bought off ebay Australia. Other than cosmetics and muffler the engine looks to be the same.

Here is a pic of the engine I have, noting this is not my actual engine.

Could this be direct import? The seller I got this from appears to specialise in importing.

Craig 01

Hi Raven,
You appear to have a Peak Model 45cc,Roger & jenny,(correct me if i"m wrong) comes to mind with regards to this engine within Aust.
Here is the Peak Model Site. www.peakmodel.com
I dont know anything more about this engine apart from the fact it is offered /or has been described as a CRRC Pro 45 from the auction site you mentioned.

Cheers,
Craig.

Edit:It does look a good engine externally and is supplied with a RCEXL ignition with advance and full shield plug boot/cap,(or should i say,retard ignition).The ignition unit is much better than the CRRC Pro non advance ignition .

The Raven

Thanks for the info, I'll research it and find out what I actually got.

platero

ok thanks for the info, but problem exits with or without the cowl, and when i start the engine at first time in a stand runs fine at any rpm range. Thanks a lot

spitmad

Guys


I had coffee with Roger Lee (importer of these gasses here in Oz) yesterday and picked up one of his 45cc donks........he does say that he advertises these as a CRRC pro however they are not quite the same as they have a more advanced CDI module.
I have bench tested his 65cc gasser and found it easy to start, great throttle response runs beautifully and at <$400 a bargain......I will be bench testing his 45cc shortly so will keep you posted.........the 45cc was only $330 so again great value.

cheers

Alan

size*b

Hi Alan.
Where in Oz can one buy these motors at the prices you have quoted ? Certainly not in the hobby shops in Melbourne.

Thanks.
bernie.

The Raven

Spitmad,
Thanks very much for that information. Glad to hear the engine has a nice electronic ignition module, it was something I was going to investigate.

My next challenge is to get a suitable airframe to suit the engine but with two planes already on the bench, another one in the closet, and the postman about to deliver another I suspect my other half will get upset.....

The Raven

Check out the Australian eBay for Planet Roger hobbies. He has an ebay store as well as auctioning off these engines from time to time. The price mentioned in another post is at the low end of what they work out on auction (mine was roughly that price).

platero

hi guys, my problem was not air flow etc. the CDI stop over 5000 rpm so the dealer in Argentina give me another new, so this weekend i try it, i´ll post the results