Ok, so I've been around here forever, but I'm new to the 4G63 scene. I just picked up a 99GST and it's leaking oil pretty good from the drivers side in a spatter pattern. I had it checked and my mechanic said it's coming from under the timing belt cover. After some research it seems the front oil pump seal is a common culprit on thesee cars. Any .02 from you guys?
#4655, "RE: Significant oil leak ..." In response to Reply # 1
I don't think I'm even going to do that. My plan right now is to pull the whole motor in the spring ... replace all the gaskets (I already bought a gasket kit) and do a new oil pump, water pump, and timing belt all at once. Hopefully I'll figure out what it is then. Thanks for the reply.
#4656, "RE: Significant oil leak ..." In response to Reply # 1
Yes common culprit BUT keep in mind that the cover runs up to the cam gears. Oil can leak anywhere in that area and leak out of the bottom of the cover. Like Tony says, gotta pull off the cover and look. On the bright side, there are just 4 bolts to pull off the pulley
MB
Captain Caveman
96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq 97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq 98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats 99 OZ 5sp Stocker 15.856 @ 85.97 99 GS stocker auto 17.7@77mph!
#4741, "RE: Significant oil leak ..." In response to Reply # 6
Did you check to see if the timing belt has oil on it? My front seal and oil pan was leaking (still is x.x) and it covered the belt and shot out the bottom of the drivers side. Talk about a pain, after 3 attempts something STILL leaks.
