How do these carbs look?

[littleape]

I'm finally getting back to rebuilding this '90 150 and was sure I was going to rebuild the carbs but after opening them up they look spotless. I think the previous owner must have had them done not long ago.

Now I'm thinking of just cleaning them with carb cleaner and not doing a rebuild, pictures below.

 

[racerone]

I think the bowls may be warped.

 

[littleape]

I think the bowls may be warped.

They seem a bit concave, if I put them on perfectly flat surface I can see a bit of a gap. Is this a common issue with these plastic bowls? Is this a must replace or can the gasket account for the imperfection.

Also, were you just guessing or did it show on the gaskets?

 

[racerone]

I have keen eyes and many years experience.

 

[littleape]

Here is how the worst one looks, this gap is not normal right?

Now I see the superseded part is aluminium. Looks like I'll be using some kind of a sealer, maybe three bond case sealer, because no way this rebuild has the budget to replace those with aluminum parts at $130+ a piece.

 

[littleape]

Looks like sanding flat is also an option, I've done that with aluminum heads so that might be worth a try.

I wonder if this warpage caused the piston rubbing damage from running lean.

 

[boobie]

Sand them flat on a piece of glass and use them.

 

[boobie]

Racerone, just how many years. Now be honest.

 

[racerone]

I just use big hammers when I repair motors.

 

[SweetD]

I just replaced all four of my float chamber bowls as they were all warped. Those four (OEM) and four carb rebuild kits (also OEM) cost me right around $200 total shipped from eBay.

As others have noted, you can try sanding them back to flat on a smooth piece of glass or other very flat surface with fine grit paper. I've done that in a pinch with a single bowl. You may find them tough to reseal even after that. Good luck and report back!

 

[boobie]

Ah, come on Racer, tell us ?????