VWDiesel.net The IDI, TDI, and mTDI source.
General Information => General => Topic started by: matchbox44471 on May 31, 2008, 06:31:24 am
-
I have a 1991 Jetta diesel with more blowby than I would like. What experience do people have with running a vent from the blockoff plate on the front of the engine block? Also, does anyone have an older style block off plate with the hose nipple?
-
Well, as I understand it, the intake valves require a bit of lubrication. Were you going to go back to the intake tract or kill mosquitos? Your front plate can be drilled and have a nipple pipe (of some sort) welded on. Or, find an old block which hasn't been stripped.
When I first put my last rebuild together, I vented to atmosphere for about 100 miles until I felt the rings seating. But I quickly remembered the first sentence above. Perhaps mistakingly, I was concerned wih just how much blow-by I would have at first and wanted badly to avoid a run-away situation. I once had an engine rebuilt at the local Vo-Tech school tend to do that at first.
-
that vent works great on 1.9's. rather than shooting boost through the dipstick tube or past the other bank of cylinder's through their rings, it just vents in the 'path of least resistance'
-
I plan to run the crankcase vent up to the intake manifold via a Y fitting. I also plan to drill out the connections on the intake manifold to increase flow.