if the oil wasn't changed in a D16 for about 13 months what kind of damage am i looking at just based on this information. car sounds fine but hesitates off of idle for a millisecond

 

That's bad juju. How many miles in that 13 months?

I would change it right away, run some sea foam through it, and then do a compression test. That would be your best bet.

 

the speedo was intermittent during this time and did not fully register all the kms. (canada) but the owner guesses around 300,000.

 

[sm=yikesomg.gif]

That's like 186,000 miles on NO oil change?!? You need to run a compression test immediately. It's really easy, pm me if you need any help

 

NO the odo should read around 300,000 in general. he thinks it was about 80-100,000 without, but still it is cause for concern. i did the basic check of running the engine with the oil cap off to detect blow by through the piston rings and detected no more than other high compression 4 cylinders. but a compression check is more definitive. what PSI should i be shooting for? and how much difference is allowed among cylinders before problems are evident?

 

Holy ****.

 

you're compression will have gone down a ton. you will probably have to get your cylinders honed and your pistons might need replaced too.

 

YOur compression numbers should be no more that 10 off of one another.

Mine was 204 199 200 199, which is pretty dang good. (D16y8 with 64k+ on the odo) Motors will vary..

 

thanks. i just needed a ball park figure on honda engines. so used to chevy V8's that i am out of touch with everthing else. now i will conduct a test once it is back in my possesion. (getting ball joints replaced)

 

might be back to the shop getting a replacement motor^^^as soon as it comes out... depending on the damage