What is wrong in this pic?

[Wozzaaah]

Ok, hopefully this info will put the whole issue to bed;

The chain tensioner in that photo was the part that raised the initial concern and spawned the whole issue.
That tensioner is a double-roller type which is commonly used on the type of buggy in question and is referred to as a 'chain snatch compensator'. The rollers are linked and at a fixed distance from each other so as the top one rises under acceleration, it pulls the bottom one up and takes up the slack then under deceleration the bottom roller is pulled down, pulling the top roller down and taking up the slack.
You can clearly see the bottom roller if you zoom in on the photo.
Apparently the setup works very well.
I will also add that the photos and videos of the finished buggy ARE very different to that WIP one, the engine was changed and it was given a paint job and looked very nice indeed!

I will leave this thread open for now but may I suggest that you take the time to read Chuk's threads and though they're old threads, if you have any more input, please post any replies in them so he may possibly see them.
Thanks.

 

[pidgeon chit welder]

I'd be worried that the rear subframe was on such small mounts and it seems unusual tha the chain tensioner is on the tension side of the drive chain rather on the less tensioned side . I feel that having the tensioner on the top would soon see it wrecked and the chain lilkely to fly off the back sprocket during release of the power

 

[brightspark]

just let it die enoughs been said about it. there might be a few faults and room for improvements but its easier to criticise than design something .ive made things and looked back and could have improved upon it after it was made as so could anyone else .

 

[Drains]

From reading Wozz's reply above Pidgeon, it appears that the tensioner is meant to be like that - it works on both the drive side and the non drive side of the chain, and changes its action according to which side of the chain is under tension. Worry ye not!

Brightspark, I don't think Pigeon has seen the rest of the palaver that's been going on with this thread, so he's commenting honestly - not trying to cause trouble

 

[Wozzaaah]

Pidgeon, as Drains says, read my reply properly please.

 

[brightspark]

From reading Wozz's reply above Pidgeon, it appears that the tensioner is meant to be like that - it works on both the drive side and the non drive side of the chain, and changes its action according to which side of the chain is under tension. Worry ye not!

Brightspark, I don't think Pigeon has seen the rest of the palaver that's been going on with this thread, so he's commenting honestly - not trying to cause trouble

no ofense taken

 

[Pete.]

Hi well I guess I better respond in the original thread, since I started it. Unfortunately there was a problem at work and I have done two very long shifts (just got out of bed in fact in time for Sunday dinner) so didn't get a chance to reply once I posted.

Yes, it was the chain tension roller. Now as Woz points out, the device looks to actually be a swinging 'compensator' which allows the tension-side to always pull straight but the pic doesn't show that very well at all and It does look like a fixed roller on the wrong side of the chain run at a casual look.

Anyway, I didn't mean to drag the project down, and didn't want to resurrect a 4-year old build thread either, just point out something that caught my eye in the gallery. I've always got respect and encouragement for anyone, youth or old, who takes on such a project and even more for those who follow them through to completion.