Checked my compression

[Silviaoneday]

Well to start out I have a s14 sr20 stock internals stock turbo stock injectors blah blah. I have been feeling a little iffy about it and decided to check the compression. I was reading and searching the forums and saw 156psi is the stock cyl compression can this be verified, also there shouldnt be over 14psi spread correct? Heres my numbers!

COLD:

1. 136
2. 137
3. 135
4. 132

HOT

1. 139
2. 138
3. 136
4. 134

[aNskY]

you are holding the throttle WOT right? dump a capful of oil into the cyls and re-check. if the numbers go up, your rings are gone, if not, looks like you could use a head gasket or a valve job

[jr_ss]

I think the numbers are too far off in each cylinder for it to he a HG... Looks like you need rings to me, especially since the numbers dropped after warm up...

[Silviaoneday]

Your help is appreciated! Thanks

[jr_ss]

You need rings...

[Silviaoneday]

thanks guys, yea thought so just wanted to make totally sure!

[jr_ss]

Did you add oil like ansky said?

[Silviaoneday]

Yea I actually did put the oil

[93 Sr Hatch]

hmm i wanna try mine now..... so did we ever establish what a healthy motor should be???

[aNskY]

hmm i wanna try mine now..... so did we ever establish what a healthy motor should be???


something like

1) 155
2) 155
3) 155
4) 155