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Discussion Starter · #1 ·
Hiya all, has anybody done the above?? Mines looking a bit past its best so I thought it would be nice to sort it. My preference is for black glossy powder coating but any inputs from you fellas would be appreciated. Ta.
 

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AFAIK the cam covers on most later engines are pressed steel, unlike the early ribbed aluminium ones. Powder coating is not really a good finish for steel, as it is mainly intended as an aluminium treatment. If you want to have a steel item powder coated, our powder coaters suggest galvanising it first, otherwise the coating tends to peel straight off the steel as there is no primer. Also, as powder coating is an electrostatic application which is then fused on, it would be difficult to avoid getting the inside of the cam cover coated - this will probably crack and drop off onto your cams/into your oil.
I should stick to paint
 

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Originally posted by Leon [9-5 stg2]:
[qb] pretty sure all B series engines are alloy cam covers. [/qb][/b]
Me too as long as they're 16V. AKAIK the only bit of steel that might creep in is the plate that goes over the spark plugs if it's not DI. I don't think the cover itself can be be pressed steel as it needs to have a recess in it to accept the sealing gasket.

You don't need terribly high temp paints. The cover shouldn't get much above 100 deg C. I'm sure when mine was resprayed it was just with conventional paints. If in doubt use something like radiator enamel.
 

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yep all the b-series engines are alloy (the ones I have seen anyway)
how about polishing then cold hard anodising ..that would look good !
I would have to agree about the temps however there is a hot spot just above the turbo where in most of the b-series engines the black paint has lifted...
 

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Originally posted by ylee coyote:
[qb]there is a hot spot just above the turbo where in most of the b-series engines the black paint has lifted... [/qb][/b]
hmm... strange... I seem to know exactly what you're talking about
can't possibly think why it's happened twice on my car
 

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Mowgli, if you have the patience you can get an almost mirror finish from alloy by starting with metal polish and so on and finishing with one of those "Dremel" type tools with a polisher on it. Never done it myself, seen the results, looks great, takes forever

As far as High Temp paints go, the problem with them on rocker covers is in fact that they don't get hot enough to cure properly. I've had good results with them (admittedly on pressed steel covers) by following some advice given to me which was to paint a couple or 3 coats, and allow to dry in the normal way. Then heat your oven up as hot as it will go and stick the rocker cover in there for about 20 minutes (make sure the lady of the house is out, and open all the windows, 'cos it stinks. I suggest you clean off any oil from the inside first too!) Your mileage may vary, but it worked for me.

Finally, when I started tinkering with cars seriously, I spent a few lunchbreaks driving round the local industrial estates to see what was there. I found all kinds of useful places, especially metal blasters, fabrication specialists, coating and anodising places, hose assembly places, fastener suppliers (lovely to replace those scummy rusty torx bolts with nice stainless ones). A useful investment of time, I reckon, if you want to find a place to do it professionally.
 

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Discussion Starter · #16 ·
Thanks for all the replies. We've got a shot blasters nearby who can easily get what is left of the paint removed, and i know of a tame sprayer in Blackpool who can sort out the respraying no bother whatsoever.


It might be a job for the new year whilst I still have my GTi to belt round in.
 
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