Central FL M1031 project

[CARC686]

Did mine last year. Copper spray is the ticket. No more coolant "smoke".

 

[deank]

Now the light bar will have to come off. Can’t look like it came out the ‘cars’ movie…

 

[CARC686]

Hope your heads aren't cracked. Use an HVAC inspection kit. Spray the mating surfaces with florescent penetrant dye and look at them under a black light with the glasses to make sure it's just the gasket. If they're not bad, you can resurface them at home with a heavy pane of glass covered in emery cloth.

 

[deank]

Does anyone understand the rationale behind the highlighted caution on this page of the -34 manual?


Thanks for any input.

 

[CARC686]

You'll make it not flat.

 

[deank]

So, just a scraper and razor blades…

 

[Mullaney]

Does anyone understand the rationale behind the highlighted caution on this page of the -34 manual?

View attachment 942425
Thanks for any input.

.
I'm guessing that the wire brush in a drill and pressing down hard to clean carbon deposits could eat away metal.

 

[CARC686]

Really, you've just got to use an abrasive that's harder than gasket material, but softer than the cylinder head. I'm not afraid to use steel bristle wire brushes on iron, but I wouldn't use a steel bristle rotary tool. Brass wheels wear out fast, but they shouldn't hurt anything. The DIY thing is to scoot your cylinder head mating surface around on a piece of plate glass wrapped in emery cloth afterward. I used scrap glass from an antique aquarium. Marble or granite counter scrap would work. It's a sliding scale of how valuable your time is. You can take a long time and do it cheap or you can pay a machine shop to do it fast, or even not do it at all, but having taken it this far apart, I would face them.

NMWR 9-2815-274 : Using a straight edge and feeler gauge, check flatness of cylinder head to block mating surface. Flatness of cylinder head (11) must not vary more than 0.002-in. (0.051 mm) in distance of 6 in. (15.2 cm), or more than 0.006 in. (0.152 mm) overall. Replace cylinder head (11) if flatness does not meet specifications.