Tom 400 CFI

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....

Aaron R.

I'm interested to hear how this works out.

drive it

iTrader: (1)

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!

stew'86MCSS396

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:

Tom 400 CFI

"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.....

.

Airwolfe

iTrader: (1)

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

Tom 400 CFI

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

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

EDGE

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

Tom 400 CFI

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