Discuss here about Yoeddynz's little Imp project...

[ajg193]

Or just do it the way Toyota does and put the chain cover really close to the chain so it starts making grinding sounds when it is worn out

[tortron]

Gn125 chain I'm telling ya

1/4" pitch tho

[datlow]

Thought I’d stepped into the Barry thread......

 

my 2C, honda cx500 has basically what your doing, and they go for ever so meh

Those three bolts can be loosened and some wiggle room to take up the slack of 40yrs of motoring 

However there is a little plug on the side of the case to chuck a mirror into to check this and the cam chain, possibly worth adding to yours?

[Spencer]

Nothing like some chains to bring out the Barries.

Oh and A+ project, definitely fun to follow the updates.

[flyingbrick]

This could quickly turn into the HOW TO MOVE A CONTAINER HOUSE thread. 

My vote is no chains. Use a hydraulic pump on end of crank,  connected to a hydraulic motor that drives the oil pump.  

[tortron]

1 minute ago, flyingbrick said:

This could quickly turn into the HOW TO MOVE A CONTAINER HOUSE thread. 

My vote is no chains. Use a hydraulic pump on end of crank,  connected to a hydraulic motor that drives the oil pump.  

Magnets involved somehow.

Or just fill the entire space up with hand cut gears.

 

I'm sure the engine is together and propelling Kevin to the beach already tho

[yoeddynz]

16 minutes ago, datlow said:

Thought I’d stepped into the Barry thread......

 

my 2C, honda cx500 has basically what your doing, and they go for ever so meh

Those three bolts can be loosened and some wiggle room to take up the slack of 40yrs of motoring 

However there is a little plug on the side of the case to chuck a mirror into to check this and the cam chain, possibly worth adding to yours?

Yeah good idea on a little sight window.  Or better yet - a little peephole camera which connects to a 7" screen on the dash for real time chain wear watching. With a strip of warning leds that light up progressively as the chain wears out. That will appease Anton I can use some sort of etch a sketch with one arm connected to the chain tensioner then linked via gear cables (shimano sis because that's my flavour) to the sketch pad on the dash. Real time graphs for @Roman

@Spencer the chain barries on Retro Rides forum are good too...

Until last night I had never heard of a 'hunting tooth' and then one excited Barry who thought he'd catch me out quipped in ... "have you added a hunting tooth for each chain run?"

Fuck me! Here we go again ! I looked it up...

 

"In design of all kinds of power transmission gearing, also applicable to design of chain or toothed belt drives.

A "hunting tooth" is used to avoid gear ratios where the tooth count of one gear is an exact multiple of a gear it mates to (e.g. ratios 1:1, 2:1, 3:1 ...). The reason for avoiding integer gear ratios is that in such a design each tooth of the smaller gear always contacts exactly the same tooth or teeth in the gear it mates to. This in turn will cause accelerated wear, usually into an oval shape.

Thus if designing an (approximately) 2:1 gear ratio, the designer uses gears with 49 and 24 teeth respectively, then every tooth on each gear comes in contact with on it's mating gear. This in turn causes minor variations in wear to be propagated across all teeth.

In sprocket design, it is desirable to design for the chain or belt having a number of links which should not be evenly divisible by the number of teeth in any sprocket,"

 

 

Needless to say I hurriedly put down my evening cup of Horlicks, donned my best slippers and popped out to the workshop to check it out. By pure luck my combination of sprocket tooth counts vs chain link count happens to work out with an effective hunting tooth.

Thank fuck. Must have been a birthday present from the engine god (yep- I was one year older yesterday) 

Although in reality if there was not a hunting tooth I'd probably have left it anyway...

Its all shits and giggles

 

[ajg193]

I was gonna mention the hunting tooth thing but figured chances are you would have gotten it right by luck or design

[yoeddynz]

Ohhhhhh were you now. Easy to say that now eh? Too late - you cant claim that one barryboy

[tortron]

i assume its all covered here

https://www.trademe.co.nz/antiques-collectables/automotive-transport/cars/listing-2747957445.htm?rsqid=cd8b784ff4454350984a094351e77831-025

[yoeddynz]

All I need to do is stick some tape on my headlights and I'll have a race car!

[anglia4]

Or return to page 1?

[thegreatestben]

to be fair, if whatever is chosen does fuck out and lunch the motor; I'd happily chuck some dollars in to help pay for the next motor.

It would only provide more entertainment for us and Alex has provided a tonne of that on this forum for free

[ThePog]

Yea I say that when it lunches itself we run a poll to decide what the next engine should be, we all chip in to get it to Alex, then sit back and watch the mad antics as he solves all of the unwieldy problems in getting it to fit.

To start the suggestions I choose an OM606 with a DPUK 600hp pump.

[Transom]

Na he is sold on this flat 6 thing - commer ts3 it is then lol

[yoeddynz]

1 hour ago, thegreatestben said:

to be fair, if whatever is chosen does fuck out and lunch the motor; I'd happily chuck some dollars in to help pay for the next motor.

Oh you guys. Lol. When this engine explodes I'll post up some fantastic vids and then start planning my Fezza f40 engine install which I'm totally happy to be gifted... 

[westy]

Pretty sure a cam drive isn’t going to have a ‘hunting tooth’ in it? 
 

[flyingbrick]

This man makes a good point.

Edit.

Actually, it might, chain just needs the right number of links so it doesnt land on the same link with the same tooth each time....?

[yoeddynz]

yeah pretty much that. I think it can have any tooth combination (so long as the cam sprocket has twice as many teeth as the crank one) but the chain has to have a number of links that cant be evenly divided by either sprocket.

Does that sound right?

[westy]

Ahhh I see. So kinda more a link and tooth ratio combo sorta thing. 
Learn something new every day.