Aircooled VW South Africa

Dave Rowley is supplying mine, and we had a long chat over my engine, etc. so 'm going with his knowledge...a blown alternator is going to make me a very unhappy man.

My engine will top out around 5,300.

N.

So Why The huff and Puff and I`ll blow your hous down If you know what you want

End of the day

It depends on the suplier if it `s going to last or not

No issues my side.

Just curious to find out more and drop my comments about the system.

N.

MTM, the fan is geared by the fact that the crank and alternator pulleys are different sizes.

Not 100% on this, but I have heard that the flat serpentine pulley actually adds more friction to the setup, therbey requiring more power to turn. It was designed for the bug as the high revving boys were throwing their fan belts off regularly due to its momentum going over the top pulley. That is why the tensioner pushes the belt in under the top pulley. I have also heard that at high speeds, it adds a fair bit of force to the alternator bearings as its not slipping and eventually kills the bearings as they are now seeing more force than they were designed for.

The advantage of these belts (and why they are popular on modern vehicles) is that they dont slip and they are extremely flexible, being also able to transmit power on both sides (toothed and flat side).

Tony Z wrote:MTM, the fan is geared by the fact that the crank and alternator pulleys are different sizes.

Learn something new everyday.

Tony Z wrote:Not 100% on this, but I have heard that the flat serpentine pulley actually adds more friction to the setup, therbey requiring more power to turn.

Tony Z wrote:The advantage of these belts (and why they are popular on modern vehicles) is that they dont slip and they are extremely flexible, being also able to transmit power on both sides (toothed and flat side).

Take away power, or generate power?

Tony Z wrote:I have also heard that at high speeds, it adds a fair bit of force to the alternator bearings as its not slipping and eventually kills the bearings as they are now seeing more force than they were designed for.

So I keep hearing...

I hear that the tension is not that great, so does it really add that much more wear?

How often, from what you know, before replacement is necessary, and can a layman do it?

Merlin wrote: Take away power, or generate power?


How often, from what you know, before replacement is necessary, and can a layman do it?

it takes more power to turn... therefore it uses power (not much but it does).
Q: how can the kit generate power?

Its got a tensioner and the belt is longer than it needs to be... a 3 year old can thumb suck his way around a belt change with this system

Personally the only serpentine belt experience I have is on my waterpumpers but they last a long time 300000km is common. Most aftermarket and even vw old school belts are shitty.
I vote go for it
A

Okay oaky I know i am a vannermerwe Bugger, but i was looking at my aircooled engine today and was wondering how do you tension the van belt? and how do you replace it?

OK SORRY

I`ll Love that nerve alone now

By adding or removing shimms between the 2 pullys when you remove shims you put them on the outside of the front one then tighten the nut

No problem, i have no heart, no feeling " vannermerwe stop crying" he he he he

by remopving these shims, is it alingning the pullys or tensioning the belt?

"BOTH"

Bugger , you bussy makeing me scratching my head, I wil have a look at it, but not tomorow, maybe by the weekend or next weekend, but realy thanks for the info, will mostdefnetly try it

Bugger - did you get your PM?

First off Suzie, get the correct size belt...then by adding or removing shims you're 'pushing' or 'pulling' the belt down...note the angle on the inside of the pulley... \/ ...makes the belt ride higher or lower.

SUZIE wrote:Bugger - did you get your PM?

no