Actuator Bracket
Turbo Mini Forums

So, I've made a bracket to hold the actuator onn the LHS of the engine bay (see photos). The problem is that when I pressurise the actuator (using a foot pump) it moves; see arrouw on picture.

Total movement before the actuator opens the wastegate is around 0.5mm. Does anyone think that this will cause a problem. As you can see the bracket is pretty hefty as it is. I will lightent it eventually.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Can you not add a brace strut from the outside edge of the bracket, to where the wastegate housing bolts onto the turbo (in the second of your pics)????

I don't suppose that 0.5mm of movement will make much difference, but over time will the bracket fatigue and fail in the middle of a potential FTD run at a hillclimb? Worth doing it properly and doing it once in my opinion, I'd guess that if you are concerned enough about it to post up on here, you are already 95% of the way to modifying it so it doesn't move at all.....................

Surely this movement is just from the bracket itself flexing as it releases the pre-load?

Admittedly, it's far from ideal, but will you really feel a difference?

I'm surprised you couldn't find room over the side mind; putting a 'dog leg' into the actuator arm maybe - or using a smaller diameter body? Especially as you sacificed the engine steady for this layout.

Edited by turbodave16v on 19th Mar, 2006.

"""Surely this movement is just from the bracket itself flexing as it releases the pre-load?""" Yes, exactly Dave.

There really was no room on the other side. This is mainly because I have a Montego carb which has a choke converted from an automatic. I'd have still needed to make a bracket though and it's even harder to find a mounting point on the RHS.

As for the engine mount, we haven't used the steady bar on that side for 5 years.

Cheers

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

In that case, given what you've said - I wouldn't have any worries about it... If you can fit a lower brace like tom suggests, all the better. If not, it'll probably be reliable enough... But once you start lightening it....

Hi,
If youy have a look in Nics how to, the mirage braket bolt on to 2 of the manifold studs, bracing it the opposite way to your bracket. I don't know if that will help?
Cheers,
Gavin :)

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