What is the problem?: 

The problem with the car is that the engine is burning oil. After doing research, I found that one possible cause of the burning oil could be the piston rings. If the piston rings can not seal the cylinder wall, then oil will leak into the combustion chamber where it will burn. I took all the spark plugs out and did a dry compression test, then wrote the results down. I then added a few squirts of oil into each piston and did a wet compression test, and wrote the results down. 
Step 1

 To find out the cause: I did a dry and wet compression test.

 Results: 

compression test (dry)

 1st cylinder - 150 PSI

2nd cylinder - 90 PSI

3rd cylinder - 150 PSI

4th cylinder - 120 PSI

compression test (wet)

1st cylinder - 150 PSI

2nd cylinder - 130 PSI

3rd cylinder - 190 PSI

4th cylinder - 160 PSI

After the tests, I compared the two charts to see what the results are going to be. The results show that the wet compression test increased the PSI for each piston. An increase in PSI means the piston rings are worn out and there needs to be a replacement for the piston rings.

Comments

Post a Comment

Popular posts from this blog

week 2

Image
The first thing i did was taking off the hoses that were connected to the radiator. It was difficult to get some of them off but I used a flat head screwdriver to loosen them. The next step was to take off the clutch slave cylinder. After, I took off the plastic air cover to get a better access point to taking off the sub frame. My partner Adam removed ball joint nut, and removed the axel nut from outer wheel hub right side. He also rear engine mount, and axel. Took off belt, and drew a picture to remember how it works. I moved alternator, and labeled AC.
Read more

week 5

The engine is out. The first step is to see what the new engine needs from the old one, and move the parts over. The wiring harness had to be moved over to the new engine and it is very important that the correct plugs were connected into the right spots. It is important because we would not know if there is a plug in the wrong spot until the engine is back in the car and we have done a test run. If there was a miss connected plug, then we would have to take the engine out again and figure out whats wrong. Some hoses had to be removed and transferred over to the new engine. One hose was too long to be connected so we had to cut it and make it the right size. I had to move the power steering pump over. I was careful to make sure i put it on the right way because if you turned it upside down, the bolts and the holes would still line up which made it look like it would still fit. Moving all these parts over, was a slow careful process because there were times where we woul...
Read more