valve covers

[visionaut]

Hans -- sorry to ask, since you likely checked this already — but there’s no way the sprayer bar is incorrectly positioned, thus sitting too high in front? 

[jimk]

Suggest you check you check the oil spray bar.  The mounting brackets are right down on the head, no washers under the mounting brackets.  Mounting brackets not bent.  How about a photo detail of the spraybar installation?

[Hans]

On 8/6/2018 at 12:09 PM, '76mintgrün'02 said:

Perhaps you could relieve the rib to gain clearance?

(just grind back the part that is touching)

Odd one on the right. There is a lot of metal over the oil sprayer bar. But this must have worked at some point - I can't figure out what changed, other than gasket thickness.

[Hans]

On 8/6/2018 at 12:35 PM, visionaut said:

Hans -- sorry to ask, since you likely checked this already — but there’s no way the sprayer bar is incorrectly positioned, thus sitting too high in front? 

I'll recheck but seems to me it was squeezed down against the head. 

Edited August 9, 2018 by Hans
spelling

[visionaut]

That cover’s a totally different size (length)!.. another engine than an M10??

i have a hard time believing that EVER fit an M10 - but I have no idea if a1600 head is smaller that way (but I doubt it).  Baffled.

[Simeon]

3 hours ago, visionaut said:

That cover’s a totally different size (length)!.. another engine than an M10??

i have a hard time believing that EVER fit an M10 - but I have no idea if a1600 head is smaller that way (but I doubt it).  Baffled.

 

I assumed that was just a crazy optical illusion. It does look significantly smaller. 

[Conserv]

9 hours ago, visionaut said:

That cover’s a totally different size (length)!.. another engine than an M10??

i have a hard time believing that EVER fit an M10 - but I have no idea if a1600 head is smaller that way (but I doubt it).  Baffled.

 

I’m assuming it’s just at a slightly different angle to the camera from the “long version” on the left....

 

Regards,

 

Steve

 

[visionaut]

10 hours ago, Conserv said:

I’m assuming it’s just at a slightly different angle to the camera from the “long version” on the left...

Yeah, I know - but that pic is definitely from a weird view.  But look to those ribs on the right — it’s like they go straight across (!) — maybe for a non-OHC, 7/8-scale M-10...  ?

[Conserv]

2 hours ago, visionaut said:

Yeah, I know - but that pic is definitely from a weird view.  But look to those ribs on the right — it’s like they go straight across (!) — maybe for a non-OHC, 7/8-scale M-10...  ?

 

I agree: I have never seen valve cover ribs that were straight across....

 

Regards,

 

Steve

 

[ray_]

Some of the newer gaskets are thinner. If you use the old style acorn nuts, especially with the wrong thickness washers, you may break the nut tops or not have correct torque on the cover when fastened.

 

My $0.02.

 

Cheers,

[Hans]

Optical illusion. I think gasket thickness has reduced since that cover did work in the past. I'm debating using two gaskets but for now I've installed a spare cover.

[Hans]

On 8/6/2018 at 8:23 AM, jgerock said:

Hans - are you sure the valve cover nuts are compressing the cover and gasket enough to seal?

 

I re-used old valve cover nuts (the dome type) on my 72tii engine and it leaked like crazy from the lower gasket areas.  The leakage went away when I substituted standard hex nuts (and recently I replaced the hex nuts with new BMW dome nuts with the integral washer).

I switched to regular nuts and washers, but I think I was just torquing the cover down onto the sprayer bar rather than the gasket at the front.

[Roundeie]

nt