Low compression in 1 cylinder?

[RandomInThe707]

I'm thinking about picking up a 1st generation Isuzu trooper. The seller (seems honest) tells me that 3 of the cylinders are at 125, but one is at 85. He says the vehicle drives well, idles smoothly, and he doesn't notice power loss.

I'm curious what the low compression might mean?

Also, is it likely it could just keep going as is? Or, does it seem like it's something catastrophic about to happen?

Thanks

 

[Quest]

low compression means the the engine is not in proper shape and would typically calls for a partial overhaul/complete overhaul, depends on what the problem(s) is.

seller selling vehicles that are mechanically questionable typically try to play down the issues (yeah, still drives smoothly/idles smoothly) but ultimately, they just wanna offload that part of the financial responsibilities to new owners.

I personally would not go after such deal unless it's outrageously cheep (to begin with) and I'm willing to pay for the time/expenses to get the engine repaired.

Q.

 

[RandomInThe707]

Thanks. He wants $1500. It's a two door Trooper.

So, basically it's going to involve major ($$$) engine work to address?


Originally Posted By: Quest
low compression means the the engine is not in proper shape and would typically calls for a partial overhaul/complete overhaul, depends on what the problem(s) is.

seller selling vehicles that are mechanically questionable typically try to play down the issues (yeah, still drives smoothly/idles smoothly) but ultimately, they just wanna offload that part of the financial responsibilities to new owners.

I personally would not go after such deal unless it's outrageously cheep (to begin with) and I'm willing to pay for the time/expenses to get the engine repaired.

Q.

 

[demarpaint]

Originally Posted By: RandomInThe707
I'm thinking about picking up a 1st generation Isuzu trooper. The seller (seems honest) tells me that 3 of the cylinders are at 125, but one is at 85. He says the vehicle drives well, idles smoothly, and he doesn't notice power loss.

I'm curious what the low compression might mean?

Also, is it likely it could just keep going as is? Or, does it seem like it's something catastrophic about to happen?

Thanks


Quest is spot on. I would stay far away from it, unless you have the time, and money to fix it. Low comperssion could be caused by coked up rings, or something in need of replacement. I'd go with the more costly, engine tear down and rebuild. I'd pass.

 

[mechtech2]

I agree.
Walk away unless you get this car CHEAP.

 

[Boomer]

These things RUST like there is no tomorrow as well. I'd avoid it like the plague.