Bad compression- what problems will I have?

[Riick]

The engine I bought gives bad compression results, but I am thinking of using it as is, just so I can have something to drive. What sorts of problems can I expect?

Here are the numbers, for a cold engine removed from the car:
1: 75, 83, 80
2: 70, 70
3: 70 (it took like 25 strokes to get there)
4: 95, 82

With oil in the cylinders:
1: 142, 145
2: 140
3: 210, 220 (this time it got there even faster than the other cylinders- strange!)
4: 170
Note: High values in 3 (and maybe 4) might be because I added too much oil (oil was spitting out of 3 way more than the others when cranking).

Specs are for a warm engine. Mine was not warm- could this cause the bad numbers? Specs are:
Nominal: 184
Minimum: 135
Max variation: 28
(note: my engine is a D15B7)

Again, what sorts of problems should I expect if I install this engine as is?

 

[mymmeryloss]

No power. Hard starts. Burning oil...

The list goes on...


Sent from my Butthole using Fart power!

 

[crash!]

^^ this. It'll run super rough, and fuel economy will go down the toilet.

Sounds like rings.

 

[Riick]

My friend who used to own the engine says he noticed no issues during the month he was using it; no smoke, no power problems. I think the fuel economy may have been on the low side though; he said 35mpg and I think this engine should get a little better than that since he drives with fuel economy as a priority.

I'm still wondering whether the compression numbers might improve if the engine is warm. Any chance of that?