Time to get the Kart on the Dyno again. I got some cheapy ($60 each) Michelin PS+4 tires to fix my absolutely bald rear tire "problem". Unfortunately, the engine had developed a pretty substantial oil leak from the rear china wall. Too substantial to put on someone's dyno, IMO. I got back there and cleaned it up some and I can't tell if my bead was too small? Or maybe it blew out from blow-by/case pressure...but it's leaking good. No way that cleaning and smearing more RTV on there is going to work...there is always oil in the leak-hole, that'll never come out completely. I'm not pulling the intake b/c it's temporary on that engine and it's an extra PITA to disassemble/reassemble than a typical TPI intake. So that's not going to be "the fix", in this case. So I had an idea. Get ready for some Road-Kill quality hackery....

I duct taped my shop vac to the oil fill hole in the valve cover, turned it on. Then I sprayed the bejeezus out of the rear china wall in the leak area, in 3 "sessions", allowing the vac to draw the brake cleaner through the leak, the dry out, then repeat. Then I smeared some more RTV over the existing RTV in the leak area, left the vacuum on, to "pull" the RTV into the leak-holes, throughly. Left the Vac going on that for probably ~1/2 hour. Shut it down, let it dry. Will it work?

Probably not, but TBD....

 

I'm interested to hear how this works out.

 

My "fix" was to spray the crap out of it with brake cleaner/pull the distributor/clean the inside also/then got my finger inside smearing the right stuff real thick inside and out/let dry for a few days. Few thousand miles later no leaks!

 

I saw this repair performed on a youtube video...the guy performing the repair used a syringe to inject the sealant in areas that produced bubbles when pressurized. :fingerscrossed:

 

"Vac-u-RTV" hackery is working so far. Drove it to work today.....







We'll see how she does after a few blasts on the dyno today.....

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It looks like some of the intake manifold has been ground away back there.

 

Yep. Manifold is a 1-off/custom deal.

Still no leaks after dyno pulls. Now I can pull the intake off anyways!!

 

VAC-U-RTV, That's next level hackery...well done! I like it

 

Still no leaks. Seems like a good repair technique. Intake is coming off…….now.