Denny
Canned Monster
I’ve only seen them as left or right calipers. Never heard of anyone trying to convert them.
Manco 495-B Fox Conquest
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Hellion
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You can also flip the caliper over inside its C bracket on the frame. That would do nearly the same thing as converting it. Kind of difficult to envision it on your kart, me not being there and whether the brake rod interferes with the frame flipped one way and not the other…
Make sure you adjust the caliper per the instructions on the Tolomatic link (post #6 in this thread). These brakes don’t often come with instructions (at least the unbranded Chinese ones), so people end up making them like rim brakes on your 10 speed bicycle; they make it so the brake pads are well away from the disc rotor. They are very effective when adjusted right and total garbage when not.
Make sure you adjust the caliper per the instructions on the Tolomatic link (post #6 in this thread). These brakes don’t often come with instructions (at least the unbranded Chinese ones), so people end up making them like rim brakes on your 10 speed bicycle; they make it so the brake pads are well away from the disc rotor. They are very effective when adjusted right and total garbage when not.
Denny
Canned Monster
If you flip it over it still ends up screwed up. At least the one I had would.
I looked at that and I believe I could not just flip the caliper from bottom to top, I also had to spin it from left to right, which caused it to have the same engagement direction. Then even if I could bend my brake rod to fit it would end up being to short to line up with the actuator bolt holes.
I also have another question or issue I am working through. The predator 212 engine (as is and how I got it used) has a valve cover with an open hole on the side, which has a tube crammed in the hole going to the carb (I think, I don't have it here) the hose was also split where it attached to the carb. The engine was running bad so one of the things I did was Jerry rig that vacuum line, which helped quite a bit. There is no vacuum fitting on the valve cover just a hole and a metallic flat tab inside the cover that looks like a male electrical spade connector. I figured the vacuum fitting was for a fuel pulse set up and the fitting was broken off, but the picture of a similar cover on Go Power Sports that has a pulse fitting also has that same hole in the side. Now I am not sure what I am looking at:
1) The motor needs a pulse fitting, and it is getting just enough vacuum from the open hole to work.
2) The motor needs a pulse fitting, but having a hose between the valve cover and the carb is at least plugging the carb port which is helping it run better.
3) It does not need a pulse fitting, and I should plug the carb port (I should have tried when I was in front of the machine)
4) The hole is an optional location for a vacuum port and should be plugged if not used.
1) The motor needs a pulse fitting, and it is getting just enough vacuum from the open hole to work.
2) The motor needs a pulse fitting, but having a hose between the valve cover and the carb is at least plugging the carb port which is helping it run better.
3) It does not need a pulse fitting, and I should plug the carb port (I should have tried when I was in front of the machine)
4) The hole is an optional location for a vacuum port and should be plugged if not used.
Interesting conversation with Go Power sports, who answered the phone and responded to all of my questions.
1) He claimed the open hole is just a vent and is common on go kart OHV covers, which makes sense to me.
2) he had a few ideas on the purpose of the vacuum pulse fitting: For added RPMs, and for adding a catch can.
1) He claimed the open hole is just a vent and is common on go kart OHV covers, which makes sense to me.
2) he had a few ideas on the purpose of the vacuum pulse fitting: For added RPMs, and for adding a catch can.
Hellion
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That tube coming from the valve cover is a diverter or collector for blow-by gases, vapors, oil mist or unburned fuel that escaped initial combustion. All engines have such a thing; in days of old, it was called a draft tube(?) [Denny help me out] that vented those waste products right onto the road.
In modern vehicles (and the stock 212), it is routed back to the carburetor usually in the form of an EGR valve and is essentially re-burned a second time. The common mod for an OHV go kart engine such as the Rotaderp 212 is to shorten the tube and add either a mini filter on the end of the tube (to keep bugs out) or use a Catch Can and add a bracket to hold it. In a well-worn engine or one that is run hard, this Catch Can can fill up fairly fast.
In modern vehicles (and the stock 212), it is routed back to the carburetor usually in the form of an EGR valve and is essentially re-burned a second time. The common mod for an OHV go kart engine such as the Rotaderp 212 is to shorten the tube and add either a mini filter on the end of the tube (to keep bugs out) or use a Catch Can and add a bracket to hold it. In a well-worn engine or one that is run hard, this Catch Can can fill up fairly fast.
Denny
Canned Monster
Road draft tube. EGR is totally different and not on our small engines. EGR diverts some of the burnt exhaust gasses back into the engine to be burnt again. Instead you should think of it more as a PCV valve. Helping to pull moisture out of the crankcase and oil.
Hellion
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I was in a fog, I claim acronym confusion. PCV, positive crankcase ventilation, and even then a 212cc doesn’t have that one way valve, it is way more simplified.
When the engine is running, pressure is created in the crankcase and, without letting that pressure out, it can lead to oil leaks from oil seals blown out, as well as other issues. The PCV valve helps to regulate this pressure by controlling the flow of air into and out of the crankcase.
When the engine is running, pressure is created in the crankcase and, without letting that pressure out, it can lead to oil leaks from oil seals blown out, as well as other issues. The PCV valve helps to regulate this pressure by controlling the flow of air into and out of the crankcase.
So, I did a little research and the vent hole on the side of the manifold would be like a PCV. Inside the valve cover is a baffle (probably like a PCV check valve) and the pulse fitting is installed as close to this baffle as possible. The crank case air pressure fluctuations are used to power a fuel pump via the valve cover fitting and hose. Because of where the normal open vent hole on the side is related to the baffle, it will not work well, if at all, to drive a fuel pump.
Again, I do not have the kart here to go out and look at, but I need to verify if I have a fuel pump or at least one that requires a crank case pulse. I did order another valve cover with the fitting that hopefully fits the engine.
Again, I do not have the kart here to go out and look at, but I need to verify if I have a fuel pump or at least one that requires a crank case pulse. I did order another valve cover with the fitting that hopefully fits the engine.
A gravity system may be what I have. The fuel tank is on top of the motor like a traditional small engine and it has the typical fuel cut off and choke control. I have no desire to modify it to a fuel pump if it is not already there.
Whitetrashrocker
Inmate #952016
Ive never seen a check ball or valve in the cover. Its just a baffle plate over the hole.
To run a fuel pulse pump you want a stronger signal. Usually ported directly in the intake manifold.
To run a fuel pulse pump you want a stronger signal. Usually ported directly in the intake manifold.