laserspeeddemon
20+ Year Contributor
- 6,717
- 61
- Jul 26, 2002
-
Fredericksburg,
Virginia
BACKGROUND INFO: SKIP TO BOLD TEXT FOR RESULTS!
Not too long ago, I had a shop replace the engine in my Laser with the money I got from a deployment (contractor) (by a shop that shall not be named); since my last engine ate it's bearings (this another story that I won't go into.)
Everything has REALLY gone to crap since then. The car was not delivered on it's date. And not all the work we agreed to be done was completed.
Worst of all, the car lasted 2 days (and 125 miles). While at WOT the car felt like I slammed into a wall. The engine shuttered a few times and then I lost all boost. I thought a lost an intercooler piping. But after I got home, I found the turbo had COMPLETELY seized. This was a brand new Holset H1E. So I thought to check the turbo oil filter. When I pulled the line off the turbo, it was dry as a bone. I pulled the filter off and oil came out of the line on the engine side. When I opened the oil filter it was FULL of debris from the last engine. Bearings material and debris had clogged up the filter.
So I installed my old 16g, loaded the map that I had for it and took it for a spin. The car ran rough. I did a compression check. and I had bad numbers
1: 100 psi
2: 120 psi
3: 155 psi
4: 155 psi
My first though was the head gasket blew, so I didn't do a wet test (stupid me).
And so I ran a leakdown test. I did this by removing the valve core from my compression gauge. I wouldn't get a percentage leaked, but I could pressurize the cylinders and list for hissing. This is the first time I ran a leakdown test. I am hoping I did something wrong. This is how I performed the test.
1) Opened radiator cap
2) Started engine, let it run until coolant steams and flows by filler neck
3) Stopped car
4) Removed COP, removed spark plugs
5) Turned Cylinder 1 to TDC
6) Installed compression test hose on cylinder 1
7) Connected hose to air compressor
8) Open line on air compressor at 60 psi
9) Listened around
10) Repeated for cylinders 2-4
In all cylinders, I got NO bubbles coming from the coolant, no hissing from the throttle plate, no hissing form the exhaust. LOUD hissing from the oil dip stick and oil cap. So I am assuming I have a piston/ring problem. I am hoping that I did something wrong.
The other question is if I went from 25 psi to 0 psi instantly could this have caused damage to the engine/head?
Not too long ago, I had a shop replace the engine in my Laser with the money I got from a deployment (contractor) (by a shop that shall not be named); since my last engine ate it's bearings (this another story that I won't go into.)
Everything has REALLY gone to crap since then. The car was not delivered on it's date. And not all the work we agreed to be done was completed.
Worst of all, the car lasted 2 days (and 125 miles). While at WOT the car felt like I slammed into a wall. The engine shuttered a few times and then I lost all boost. I thought a lost an intercooler piping. But after I got home, I found the turbo had COMPLETELY seized. This was a brand new Holset H1E. So I thought to check the turbo oil filter. When I pulled the line off the turbo, it was dry as a bone. I pulled the filter off and oil came out of the line on the engine side. When I opened the oil filter it was FULL of debris from the last engine. Bearings material and debris had clogged up the filter.
So I installed my old 16g, loaded the map that I had for it and took it for a spin. The car ran rough. I did a compression check. and I had bad numbers
1: 100 psi
2: 120 psi
3: 155 psi
4: 155 psi
My first though was the head gasket blew, so I didn't do a wet test (stupid me).
And so I ran a leakdown test. I did this by removing the valve core from my compression gauge. I wouldn't get a percentage leaked, but I could pressurize the cylinders and list for hissing. This is the first time I ran a leakdown test. I am hoping I did something wrong. This is how I performed the test.
1) Opened radiator cap
2) Started engine, let it run until coolant steams and flows by filler neck
3) Stopped car
4) Removed COP, removed spark plugs
5) Turned Cylinder 1 to TDC
6) Installed compression test hose on cylinder 1
7) Connected hose to air compressor
8) Open line on air compressor at 60 psi
9) Listened around
10) Repeated for cylinders 2-4
In all cylinders, I got NO bubbles coming from the coolant, no hissing from the throttle plate, no hissing form the exhaust. LOUD hissing from the oil dip stick and oil cap. So I am assuming I have a piston/ring problem. I am hoping that I did something wrong.
The other question is if I went from 25 psi to 0 psi instantly could this have caused damage to the engine/head?