rocker cover

[john_tdi]

just quick question.

Is the rocker cover plastic on the 150? Looks like it is, just wanted to double check. ta

 

[volvic]

i should hope not!

rocker covers are metal as once you take it off, you will have the camshaft in front of you.

i think you mean the plastic engine cover? just there to make the engine bay look neat.

 

[john_tdi]

not all are metal, zetec engines for example are plastic. i dont mean the engine cover.

 

[Andrewcupra TDI]

my zetecs not plastic , i believe the black covered rocker is still metal, just an alloy (on fords that is)

 

[john_tdi]

two types, sprayed black alloy and plastic trust me. was on 1.8 and 2.0. me bad, should have said some zetecs.

 

[adam kelly]

my tdi ibiza is plastic had to replace it due to a crack in it costs about £90ish then the gasget another £20.

 

[john_tdi]

cheers, was thinking of polishing it up, as I've got hoses etc. sad i know.

 

[adam kelly]

no probs why dont ya paint it iv painted my engine cover my battery cover my air box and im doin other parts aswell in gloss black and doin my intercooler pipes red soon.

 

[nad_84]

I had plastic on my Zetec S fiesta

 

[ChrisGTL]

My Zetec SE 1.6 Focus cover was plastic also.

 

[volvic]

yikes!
what happen to good'ol iron covers?

 

[john_tdi]

few... thought i was going mad! if it means cheaper costs then they will do anything

 

[devonutopia]

deffo plastic. Mine's been sprayed to colour code it with the car.

 

[basstard]

plastic rocker cover?! you kiddin me?!

 

[Muttley]

It's an unstressed cover, away from the hot bits of the engine and only there to keep oil spray in and bits of dirt out. Conventionally it is made from aluminium alloy, like the cylinder head, so has the same expansion characteristics. Obviously engineering plastics have advanced to the point that they can be used for this. I expect the gasket is a neoprene cord, to give some elasticity to the seal.

 

[muddyboots]

yikes!
what happen to good'ol iron covers?

I would imagine they use plastic where possible to save weight.

I have a feeling some engines use plastic inlet manifolds ?

 

[EdButler]

My VX's engine had a 'plastic' or more like a resin engine cover post MY2004 - much lighter

 

[basstard]

I have a feeling some engines use plastic inlet manifolds ?

a lot of brands use plastic IMs,,, they're smoother than metal so you get better air flow,,,

thing is an IM is not exposed to hot oil as opposed to a rocker cover,,,

 

[devonutopia]

Definitely plastic, but it is a real thick tough plastic, with a decent rubber gasket and loads of bolt down points to keep it sealed tight. It gets warm, but not excessively so.

 

[john_tdi]

thanks guys. I thought it was.