ONEBADWS6

iTrader: (22)

I have a hydrolic H/C car and I am not getting any oil to the lifters or above. The cam however is getting plenty of oil, and I have 60psi on cold start up, 45psi @ idel when warm.

The Juggernaut

iTrader: (7)

a bad bearing could disrupt the flow of oil

The Juggernaut

iTrader: (7)

How do you know the cam is getting oil?

DenzSS

If you had no oil from the lifters up, you'd be grinding off the cam lobes.

If the cam isn't getting oil, it would eat the bearings in short time.

LOnSLO

iTrader: (15)

The lifter oil galley is the lifeline for the main and rod journal bearings. Have you cranked the car with the valve cover off at idle to see whether you are getting oil up there?

ONEBADWS6

iTrader: (22)

With the car running there is no oil coming from up top with the valve covers off. It may very well be a bad bearing. The lifters will not pump up, but the cam appears to be O.K. I drove the car this way about 40 miles and it did not lock up.

2xLS1

iTrader: (25)

How do you run these cars with the valve covers off, unless you have the coils relocated.

ONEBADWS6

iTrader: (22)

I have relocating brackets

WhiteDiamond

When I did the heads/cam mods on my 98 WS6, I was told there would be a lot of valvetrain noise up top for a few minutes due to lack of oil. Could this be what you are talking about, or have you run it for a few minutes? My WS6 was extremely noisey on startup for about 2 minutes(oil pressure read fine) and then there was a sharp decrease in noise(I assume that was the oil finally making it up there). My buddies car did the exact same thing on start up after we swapped the package onto his car.

Todd

ONEBADWS6

iTrader: (22)

I have driven this motor for 40miles with there only being an increase in valvetrain noise.

DenzSS

As far as the valvetrain noise goes, have you checked your valvetrain geometry?

We just found another car with Yella Terra rockers that had some serious geometry issues. The original installer did not check the valvetrain geometry and now the owner of the car has a ruined set of Yella Terras and a beat up retainer/valvestem combination. The rocker tip was actually rolling off the valvestem and onto the retainer.

ONEBADWS6

iTrader: (22)

The angle is good, the problem is there is no oil coming up into or past the lifters. I have T&D adjustables.

DenzSS

I understand. Just making sure.

427

iTrader: (3)

The main oil galley is the lifter galley so your pressure reading is a great thing. The TD rockers can cut off the oil supply if you run the adjuster to close to the seat. Other than that the lifters having a problem or the pushrods not being drilled is the only thing I can think of.
Kurt

ONEBADWS6

iTrader: (22)

This is the second set of Comp R's, they just won't pump up and when I remove a pushrod there is almost no oil in them. It looks like it is a bad cam bearing. Damn.

Pro Stock John

iTrader: (34)

Sure you are not missing that plug that is inside the timing chain cover area?

ONEBADWS6

iTrader: (22)

I know there is a plug on the back of the block, that was checked as well. If the plug was missing I would not have the pressure I do.

Salvaged_Z

In the last issue of the "Chevy Rumble" magazine, they said that the oil galley plug can back out of it's place a little under heavy load and hit against the back cover. They fixed it by welding a little bump stop so there is no clearence b/w the plug and the cover. They said it's bad b/c you'll still have a good pressure reading, but the oil wouldn't be circulating properly to the top. Anybody else read about that?

LOnSLO

iTrader: (15)

Yes, I work at the shop that was featured in that article. We do that on EVERY LSX motor that leaves out.

ONEBADWS6

iTrader: (22)

This plug was checked but the problem was still there.