Carb balancing by ear?

[yorkie_chris]

Doesn't matter so long as they're the same.

Originally Posted by yorkie_chris

Doesn't matter so long as they're the same.

It matters to me honest. Not to use when balancing. I just want to know what the average suck is idling at say 1200 rpm. ...

[yorkie_chris]

In that case I have no idea, but I am curious as to why it's important.

Originally Posted by yorkie_chris

In that case I have no idea, but I am curious as to why it's important.

I was reading again the description of the home made carb balancing apparatus and I thought to myself 'I wonder what the vacuum at idle actually is?', bearing in mind the caution to pinch the tube when starting the motor - so I asked the question.

Originally Posted by ejohnh

I was reading again the description of the home made carb balancing apparatus and I thought to myself 'I wonder what the vacuum at idle actually is?', bearing in mind the caution to pinch the tube when starting the motor - so I asked the question.

I bet you want to know so you can "borrow" some vac gauges from work! just like me!!

Originally Posted by ikb

I bet you want to know so you can "borrow" some vac gauges from work! just like me!!

lol - I wish I was 'still at work'

[johnnyrod]

About 0.3 bar of vacuum (0.7 bar absolute). Thats's about 3m depression if it's water head you mean, or 230mm mercury. It'l go right up to almost double that on overrun though.