no compression

[95tsi4g63]

just rebuilt my motor and it wont start, got a compression tester today no compression. did i bend some valves?

 

[ilco187]

Yes sir.

 

[95tsi4g63]

awesome would it just be 8 or all 16

 

[ilco187]

Never will know unless you pull the head. or the valve cover to see what valves are down.

 

[bryanwheat]

Hard to tell before you get the head off. Make sure the timing is 100 percent set right next time.

 

[-Boosty-]

You should ALWAYS, ALWAYS, turn your motor over by hand after Doing anything with the timing. Could have saved yourself some trouble. You may have even broke a valve which could be tearing up your cylinder walls everytime u crank it. No compression on any of the cylinders?

 

[95tsi4g63]

trust me i had the timing 100% idk if it just jumped or what i marked the timing with a grease marker and rotated the motor and it lined up.

no compression at all

 

[ilco187]

I have done that also 1 time before i had all marks lined up, everything correct and turned by hand had compression during priming of oil, the second i actually started it BOOM jumped time, bye bye $300 valve job.

 

[red1993gsallmt]

trust me i had the timing 100% idk if it just jumped or what i marked the timing with a grease marker and rotated the motor and it lined up.

no compression at all

Did you put the timing plate on the crank on backwards? Seen that over 5 times and have done it once, But caught it because I spun the motor by HAND before starting it. That will bend the valves

 

[95tsi4g63]

found my problem. the timing marks were wright. one of the dowel pins were not. i feel like an idiot the whole reason for the rebuild was because the car jumped timing and dropping a valve. anothere 400 down the drain.

is there anyway by chance it didnt bend a valve?

it runs!!!!!!!!!!!!!!!!!!!!!!!!!!! thanks. im guessing the valves are fine or? only ran it for a second

 

[motozachl]

Timing was incorrect if a dowel was wrong....yes more than likely bent valves if it was off by that much. A leakdown test would confirm this

 

[josh1095]

oooh, damn bro. im feelin your pain. better luck when it goes back together next time. you could be on the road in 2 weeks and its not alot of money. i know it sucks but its not a 2000 dollar f up.

 

[TUR3O]

congrats on getting it running. timing scares me

 

[jed344]

I have seen on some rare occasions it wont bend the valves when it jumps time. Id leak down test it and you will get your answer.