Victoria! Zeke's CB175 Build
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Texasstar
Can't is a four letter dirty word
Ok you can't grind off the sides of the cam chain tensioner press fit flange very well. The flange goes inside as well. If you drill it out there is a bushing you need to use so be careful. We had to pry it off then knock the pin out of the bushing.
There is an oil hole that needs to line up with bushing oil hole. Should we secure it with red loctite? First pic is the pin that held the bushing
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There is an oil hole that needs to line up with bushing oil hole. Should we secure it with red loctite? First pic is the pin that held the bushing
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Texasstar
Can't is a four letter dirty word
i found the instructions on eBay Honda CB160 Cappellini #154 replacement cam chain tensioner with high quality needle bearing, located in the cases at the cylinder base. Please note in the photo that the oil hole in the shaft must remain in the original position, and there is a machined depression in the hex of the nut to assist in locating the oil hole during assembly. Use Loctite on the nut at the end of the shaft, and you may also want to "peen" the connection at the threads with a punch, to prevent it from coming apart during use. One of many fine products race developed over the years in Como, Italy by Franco Cappellini and used by top Honda racers throughout the World. For additional technical information, please search Cappellini Moto Italia. Brand new part at the same price as from Franco, plus shipping, converted into (our lowly valued) US Dollars here. Price subject to change with exchange rates.xb33bsa said:
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Texasstar
Can't is a four letter dirty word
wow! Very informative! 8 individual spark timings with a distributor that takes time! Loss, loss. Loss. 9% more fuel = 3% more hp. The event that made me start thinking that they were two individual engines is when we put the asymmetrical exhaust on Lucky and picked up more top speed doing it. Also after porting and cam timing there are two many "human" elements not too. One recently is the intake flow bench numbers.lsrcb175 said:
Have you calculated how many HP we start with?
I need to find some one who can weld up a combustion chamber.
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Texasstar
Can't is a four letter dirty word
Also look at number 5. See the flat part that the lock bolt tightens to. If you reverse the direction of the cam no matter how tight you have the bolt the tensioner will give. Was wondering why this couldn't be pinned to keep the correct tension on the chain kinda like the manual tensioner bolts on the cbr ape products. Does the flappiness of the cam chain come from engine braking?
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Texasstar
Can't is a four letter dirty word
at that moment you drop the clutch it shut down the momentum of the chain and was wondering if the tensioner failed if the chain would flap because of that or is it flapping because of the rpm rise of the engine or is it because the tensioner flexes down beyond the bottom of number 5's anvil head?xb33bsa said:
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Texasstar
Can't is a four letter dirty word
Why did Honda make the cam chain tensioner wheel larger but kept the tensioner the same size? They also improved so the wheel has less drag than the 175. It goes back to a teazer taught us initially ... rule number one is the eliminate the parasitic losses
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the standard design takes care of any of that
the camshaft is not a free spinning deal it is constantly causing pulsation in the chain but the tensioner is designed to handle the loads and to be adjustable for wear but feel free to try to redesign it , good luck with that
my only suggestion is keep it simple just do what the racers are doing and foget about it
the camshaft is not a free spinning deal it is constantly causing pulsation in the chain but the tensioner is designed to handle the loads and to be adjustable for wear but feel free to try to redesign it , good luck with that
my only suggestion is keep it simple just do what the racers are doing and foget about it
Texasstar
Can't is a four letter dirty word
Teazer says it is a problem we need to solve. I know the answer but I want to know why and what is causing it. Yesterday I didn't know that they use two valve springs to cancel out the resonance problems. Thank you to LSRcb175 posting that video. We will watch it over and over! Yes we would stick a camera in there also to see what is going on and I would probably have stuck my finger into Jesus's wounds.
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