Taco plate leak - Need you help / inside, Did you have the same issue?? Options

[draganc]

Hi everybody,

I’m having a leak issue at the taco place and was wondering if you have some advice or experienced similar issue.

It appears that the plate leaks only in one area – see picture. The engine has been sitting on my work bench for a few months after rebuild, hence is leaking even at cold temp.

- I checked the plate on a mirror and it appears to be flat and the overall condition looks very good – no nicks nor bents or scratches at the sealing surface.
- New o-ring and copper washer have been installed.
- The M6x10 hex screws have been tighten to spec.
- The crank opening measures 84.2mm, the taco plate’s o-ring surface measures 76mm and the o-ring is 4mm thick.

It takes only a little bit of force to put the plate in place with mounted o-ring and it appears that plate is already touching the crank-case w/o torquing down the screws.

Any ideas or suggestions?

Thanks,
Dragan

[jaxdream]

There is a cover plate that goes over top of that plate , it has a paper gasket sandwiched between that plate and the cover plate. The small hex bolts go on top of the cover plate with the copper washers underneath them , maybe your hex screws have bottomed out not allowing the plate to being further snugged down giving some seapage. Maybe aquire the said cover plate and gasket and try to remount. You might just need to double the copper washer stack to get more clamping force on the taco plate. Good Luck......

Jack / Jaxdream