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removing the writing on 16v rocker cover; is there a trick
Topic Started: Sat Aug 8, 2009 5:37 pm (920 Views)
moomycossie
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2.3-16v engine now in
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hi

i am trying to remove the 2.3-16v and mercedes benz off my 16v rocker cover to degrrease sand and re-spray but do i just pull it off ? as it seems it will break ! is it glued on ?
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moomycossie
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2.3-16v engine now in
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oh and after painting can i use a clear laqure on it ?
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feoffle
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You'll need to use high temperature paint and lacquer or it will just flake off after it gets hot a few times.

I highly recommend using an enamel primer first, put a few coats of that on first and THEN paint it the desired colour. It will last a lot longer and give a better finish. I've done a few before.
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moomycossie
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2.3-16v engine now in
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i have been told buy everyone else on here you dont need high temp paint, but i have some hammerite
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feoffle
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Fair enough. I've seen numerous times where people have painted them using non-HT stuff and it's flaked off within a couple of weeks, maybe Mercedes are different.

edit* what are the covers made of?
Edited by feoffle, Sat Aug 8, 2009 6:16 pm.
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Richy190E
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bubble bubble
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They are cast in aluminium alloy IIRC. A couple of coats of acid etch primer followed by 2k basecoat and lacquer will be fine. Hammerite isnt ideal.
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merc190uk
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The Godfather

Richy190E
Sat Aug 8, 2009 8:34 pm
Hammerite isnt ideal.
really ? mines hammerite and been really good finish now for prob 5 months
if it all falls of i'll let you all know not to use it :lol:

think the temp has baked it on B)
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Richy190E
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bubble bubble
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Aerosol hammerite may be better than brush on finish wise, but i always thought it was designed for steel. I've used 2k on brake calipers with great results. And I have used polyurethane paint too but only on steel/cast iron.
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Big Ben
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Sneaky 2.5-16 Driver!
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The problem with Hammerite is it contains copper. This limits the type of metal it can be used on.

The Mag alloy of the 16v valve cover is one to avoid, although, because its in a hot area and unlikely to attract moisture, you may be ok!
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matsalleh76
Matsalleh76. RIP. Gone But Never Forgotten.
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To answer the original query:

The name plates are held on by studs on the back of the plate that fit into holes in the cam cover. The plates can be removed by VERY carefully working a fine screwdriver under the name plate and slowly working the plate up: first one side then the other.

The plates and the star roundal are made from alloy and will bend a bit during removal but can be straightened.

The cam cover itself is cast magnesium, very rough and full of minute holes. After chemically removing the existing paint, to even out the roughness and fill the holes, the cover should be sprayed with high build primer and fine sanded before applying your choice of color.

Regards,
bobf.
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Chris Martens
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Posted Image

On the above photo one can see where exactly the pins are located.

As Bob wrote, both plates are made of aluminium alloy or zinc alloy and will bend easyly.
The round star is made of some plastic, at least the ones I have are plastic.

AFAIK the valve cover for the 2.5-16 is of one piece, all letters and stripes are casted.

regards,
Christian
Edited by Chris Martens, Sun Aug 9, 2009 9:28 am.
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moomycossie
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2.3-16v engine now in
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thanks guys you have been a big help :)
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