Oil leaking from intake manifold B&S 21R707-0039-G1

Pull the head off and take pics. If only in the pushrod area and not messing with the cylinder there may be hope. If you are just venting crankcase vapor can probably fix it
 
Last edited:
Ok i had nothing to lose so i took it apart, rear engine mowers suck, i had to remove a ton of crap to get to the engine. Anyways, it looks like the worse case possible (see pics)
 

Attachments

  • 20200229_172622 (Large).jpg
    20200229_172622 (Large).jpg
    345.5 KB · Views: 11
  • 20200229_172629 (Large).jpg
    20200229_172629 (Large).jpg
    312.2 KB · Views: 12
  • 20200229_172637 (Large).jpg
    20200229_172637 (Large).jpg
    322.5 KB · Views: 11
Hammermechanicman said:
Actually probably fixable. JB weld or some alumaweld. You could even just cut the gasket and put a bolt in with gasket sealer. It is only sealing crankcase pressure not cylinder pressure.
Click to expand...
Actually the crankcase should be operating under a slight vacuum with low pressure pulses. I wouldn't be afraid to try something like JB weld.
 
Just following up, I fixed that hole with JBWeld, basically put it on both sides, put on the gasket and bolted it together really tight.
Then I started the engine and I found another hole that i didn't realize went all the way into the engine. I patched that with JB weld as well.

I tried to take it for a spin and then i discovered it was missing a belt (the underside drive belt) which is the worst one that could be missing.

I finally replaced that and got it all back together and believe it or not, it ran and actually mowed the lawn!! Now i just need a new battery.

Thanks for the help everyone!
 
You must log in or register to reply here.
Back
Top