RE: !!!!!!Official Ofna Ravager Thread!!!!!!  
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RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/11/2008 7:22:34 AM   
Dokioto



Posts: 4303
Joined: 2/6/2006
From: Fairbanks, AK, USA
Status: offline 		Your thinking of the wrong section of linkage.. I will look in the manual for kicks though.

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       Post #: 51

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/11/2008 3:14:59 PM   
hrdcoreglf


 

Posts: 787
Joined: 5/2/2007
From: Boca Raton, FL, USA
Status: offline 		Can you post a pic or let me know what page of the manual shows the linkage area your describing. Maybe I can help with that problem.

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RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/11/2008 9:11:37 PM   
Dokioto



Posts: 4303
Joined: 2/6/2006
From: Fairbanks, AK, USA
Status: offline 		Thanks for your suggestion about looking in the manual I have found the problem

In my manual its step 4- Assembly of the brake lever (I call that linkage?) which is right after the center diff mount step. My problem was that the break lever (part #30171) kept falling out of that hole it goes in (part # 30213). Instead of thinking there was a logical reason why it kept falling out I thought it was badly designed. Turns out a set screw as fallen out and caused the brake lever to wiggle free (never thought of a set scew being in the picture).

I hope I am not the only person that has missed a very easy fix and blamed it on the design

< Message edited by Dokioto -- 3/11/2008 9:13:08 PM >

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RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/11/2008 9:27:05 PM   
Themorales1999



Posts: 162
Joined: 2/28/2008
From: APO, AA, USA
Status: offline 		Regarding up grading the differential grease to silicon lubricant, has any one thought of drilling a whole in the differentials to pour in the silicon lubricant in and sealing them up with one of the very small set screws used in the brake levers or suspicion bars?

(in reply to Dokioto)
       Post #: 54

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/11/2008 9:33:01 PM   
Dokioto



Posts: 4303
Joined: 2/6/2006
From: Fairbanks, AK, USA
Status: offline 		Maybe if I had a set screw from my brake lever...

I don't see it being necessary though. Open the diff up, pour in some fluid and close her up- That would be the way to go. Drilling a hole would be a good way to get a leaky diff and possibly even mess up a gear or two.

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       Post #: 55

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/11/2008 11:11:26 PM   
hrdcoreglf


 

Posts: 787
Joined: 5/2/2007
From: Boca Raton, FL, USA
Status: offline 		It is a good thought, but will not work. You first need to remove the grease from the diff before you can add silicone oil. REmoving your diffs and opening them up can be scary for the first timer, but it is not actually that hard with the right tools and a little patience.

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       Post #: 56

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/12/2008 2:41:18 AM   
Themorales1999



Posts: 162
Joined: 2/28/2008
From: APO, AA, USA
Status: offline 		Ok, frustration is setting in

I'm trying to be cool about it but it's frustrating. The other day while the car was elevated on an improvised stand I got the idle needle tuned to idle smoothly even when I apply the brake. At time I would squeeze the gas and adjust the high speed needle until I got it to be "ok" but it wasn’t perfect since I was getting "hick ups" on the top end.

Today, since I only had an hour of day light after work, I tried my best to calibrate the high speed needle. I can idle good, and even cruise nicely but when I squeeze the gas slowly it starts going but at some point a cloud of smoke is emitted and it shuts down. I tried, very gently, to turn the high speed needle clock wise (leaning the mix, right?) since I figures it was getting too much gas but no luck. Then I would try to turn it counter clockwise to give it more gas and no improvement. I did have a limited amount of time but I did go through a tank of gas trying to tune this carburetor. I never toughed the black idle needle since I'm under the impression it's fine. I'll try some more the rest of the week, but if by Saturday I don’t get this resolved I'll have to take it to my local hobby shop and pay them to tune it. I'd rather not do that since I like to learn.

Then the brakes... No matter how much I calibrate them the best I get is a smooth stop. At the fastest I got the car to go (with ought it shutting down) the car took 3-4 feet to stop. Even though I'm using a piece of gas tubing as a "washer" between the brake lever and the stopper the braking is not constant or hard. Some times it seems to apply better than in other occasions... is that the best I can expect from the brakes? I'd love to be able to lock those tires in case of an emergency (person, car, wall.....) Is this something I can only resolve by using a high torque servo? Which ones do you guys recommend?

Also, today I installed a gas filter 4 inches from the carburetor and when I had about 2 mm of gas in the bottom of the tank the line got empty and the car was done. If I remember right with ought the filter the tank would go completely empty before stopping... Is it me or did something change there?

I really appreciate the advice and tips since the car rocks and I can’t wait to see that little bad boy screaming down the park...

(in reply to hrdcoreglf)
       Post #: 57

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/12/2008 5:41:11 AM   
Dokioto



Posts: 4303
Joined: 2/6/2006
From: Fairbanks, AK, USA
Status: offline 		About the brakes: A nice servo would help you stop a lot better, but with the stock servo you should be able to get it to lock up so , I would tighten your linkage a little more. If you can get it were it is just a little "snug" (you have to be able to roll it with little effort) at idle (as your not going any were anyway) you should be good to go. When you hit the throttle all of the pressure is off the breaks. And when you are running oil gets in there (happens to me a lot) and really "defects you brakes. Might want to check for this.

I highly doubt that the fuel filter has any affect on how well your engine primes and/or sends fuel to the engine. Check the pressure line.. It probably has a lot of gunk and grim built up all threw it. Clean it out and you should be able to get all that fuel threw that engine without it shutting off (if this is the problem).

I would like to give you needle advise but I don't think I can help just yet..
What temps are you getting?
Glow plug look good?

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(in reply to Themorales1999)
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RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/13/2008 1:17:56 AM   
Themorales1999



Posts: 162
Joined: 2/28/2008
From: APO, AA, USA
Status: offline 		Quick up date for those who've been so help full and patient with my rookie issues...

I turned the high speed needle all the way closed then turned it counter clockwise 3 1/2 times and I got to put some real speed on the Ravager !! Still needs some minor adjusting, but WAO how it moves. I ended up not going too fast since I was on a street and the speed was too much for the space.

Also, I calibrated the brakes to were they are "snug" so much so I gas it up the clutch applies and still you can see the brakes are holding it back at low RPMs ... but the I got the car to stop nicely. The brakes apply hard enough to lock the tires at times, so I feel safer about that.

I'll keep reading all your posts and learning....

(in reply to Dokioto)
       Post #: 59

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/13/2008 2:46:54 AM   
Dokioto



Posts: 4303
Joined: 2/6/2006
From: Fairbanks, AK, USA
Status: offline 		Sounds good.. I can't wait to get back out there, but have to wait till my new mill arrives.

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JR XS3 Synthesized Transmitter... What more could a guy need?

(in reply to Themorales1999)
       Post #: 60

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/16/2008 9:24:44 PM   
Themorales1999



Posts: 162
Joined: 2/28/2008
From: APO, AA, USA
Status: offline 		So yesterday I go to my local park and I really run my ravager full throttle for the first time. Amazing Impressive the speed and the jumps that little thing can take, I was almost feeling sorry for it.

But on my third tank when I was almost leaving the thing went crazy and even though I have a venom fail safe it crashed almost at full speed against the only structure that was near by.

Considerable damage was done ! The front diff. housing cracked, the lower front metal arm holder bent on one side pushing the lower arm out of alignment and in the process loosing the 3 mm E-Ring that hold it in place. Also, the impact was so hard that the engine moved and the fly wheel hit the disk while speeding and the disk was bent considerably.

I was able to super glue the cracked diff. while I order another one and I was able to straighten the disk with a hammer and a pair of pliers. The front lower arm holder was too hard to straighten but all the better since the pressure is holding the lower arm shaft in place and my local hobby shop does not carry the 3 mm E-Ring that was lost.

Last night I put everything back to its place and I took the car out today. I ran good but it does veer to one side and the front end seems to be seating further back than normal since I cant get the body into place with ought having to force it behind the front shock and on to the front pin shaft. I really hope a new diff. will fix the damage and I should either straighten or by a new lower front arm holder. Apparently getting the 3 mm E-Rings will be a hassle since I'm over seas and I couldn't find any on eBay.

I post some pictures to get your feed back...

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(in reply to Dokioto)
       Post #: 61

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/16/2008 9:36:06 PM   
Themorales1999



Posts: 162
Joined: 2/28/2008
From: APO, AA, USA
Status: offline 		Any opinion on the damage... Tips on where I can find a new front lower arm and a couple of the 3mm E-Rings??

Do you guys think changing out the front diff. will straighten up the problem? I'll get it any ways since I hate how it looks..

On the positive side I'm glad I was able to take apart most of the car and put it back together, makes me have a much better idea of how it work?

Also, I saw the grease in the front diff. gears, how is it that one puts silicon which I assume has a much more liquid consistency and it seems to not hold liquid ?

(in reply to Themorales1999)
       Post #: 62

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/16/2008 9:39:48 PM   
Dokioto



Posts: 4303
Joined: 2/6/2006
From: Fairbanks, AK, USA
Status: offline 		Thats not good.. You have a failsafe but it still took off? I bet you were almost out of fuel and when this happens the engine get extremely lean (more air less fuel) and that made it go crazy. When you looked at your broken car was there still fuel in the tank.
I guess it could of been a glitch as well. What are using for a Transmitter and receiver?

Brave sole running it broken.. Usually this stresses something els causing more busted parts.



Overall I am impressed that only that much damage was done with a full speed smack into something. Usually when you here this and see some ones truck or car it's totally torn apart.

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JR XS3 Synthesized Transmitter... What more could a guy need?

(in reply to Themorales1999)
       Post #: 63

RE: !!!!!!Official Ofna Ravager Thread!!!!!! - 3/16/2008 9:45:17 PM