What Rotor Arm

[Ric1]

Planning to order some service parts and there is 2 different arms, a limited and a non limited ?

Thanks in advance

[bigherb]

The correct one is a 5400rpm limited.

[ajsimmo]

But they're loads of trouble, so if you don't lend/hire it out, fit a non-limited one.

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[Ric1]

But they're loads of trouble, so if you don't lend/hire it out, fit a non-limited one.

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Why is this ? And whats the fault with the limited one ?

[tobydog]

More to go wrong.....

[itchyfeet]

Had a limited one for many years with no issues, perhaps some are substandard quality, perhaps I'm just lucky.

[jrt]

I've also had a limited arm on mine since i've had the van-no problems. What can go wrong?
David

[itchyfeet]

My guess is if the spring isn't strong enough or sticks it will cut out at lower revs.

No harm in a non rev limited one if you have a rev counter imo but easy to drive on the motorway in 3rd without realising it if you don't.

[jrt]

ok, thanks.
David

[bigherb]

Yes there are more bits on a rev limited rotor arm to go wrong but a good quality one shouldn't be any problem.
The CU engine without a rev limiter will quite happily go over 70mph and over rev itself in third gear on a motorway if someone forgets to change up to fourth (it does happen). Even changing the rotor arm more often as a precaution is cheaper than a new engine.

[Ric1]

I ordered a limited 1 as that's what is in there now and from what i just read from comments i would probably leave it in third and over rev it as i'm more than likely going to have 3 kids in the back banging drums and shaking a tambourine for most journeys

[a1winchester]

I heard that the limiter ones can give problems, but if they are replaced regularly, should behave.
I did have one fail on me, but it was my fault because I had never renewed it and I don't suppose my garage did when the van was serviced.
For this reason I do most of my own servicing now and replace parts BEFORE they pack up.

[ajsimmo]

All I can tell you is that I have had around a dozen vans in with running issues that turned out to be the rev limiter rotor arm. Swapped for a standard one and all fixed. Hence I never fit them.

[itchyfeet]

I wonder if they are victims of their own success.
So many people only replace bits when they break, I wonder how old they were?

[CovKid]

Agree with Andy. Better without rev limiter. If you've ever overtaken anything and suddenly found the power is gone unexpectedly, you'll understand why they suck. Had a no-limited one for 6 years. Cheap and easy to replace too. You just swap it for a 1972 onwards Beetle rotor arm. I also changed cap too

After all, its my engine. I should be able to decide how many revs I give it, not some half-baked contraption that they stuck in as an afterthought. I detest them with a passion. They do fail and they're a pain if they do. I appreciate the logic of fitting one but it doesn't work for me.

If you really must have one, at least keep a bug one somewhere in the camper so you can at least get home rather than trying to find a replacement that the nearest garage won't have.