Hey guys I have b18 that is idling rough but still gets good mpg (30) and has good power I'm losing oil and coolent but my car only smokes on startup after being run for an extended period its hard to start and smokes for a few seconds.

Compression test reveled 150-175-75-150 I'm thinking head gasket combined with valve stem seals how about you guys? I have head bolts and a full gasket kit. Other suggestions ? Ideas? Oil has never been milky and is changed every 3-3.6k

 

Make sure to check the head for any damage/warpage

 

Think that might specifically be the problem? If it is probably figure on a new head or engine correct?

 

No, likely the gasket but it's a good idea to check while it's apart to be sure instead of replacing the gasket only to find out the head is warped beyond the new gaskets thickness or causing premature failure of the new gasket

 

Ok will do thanks for giving me a good place to look for trouble I'll have the head inspected by a machine shop

 

HG is leaking and one of your valves is bad, be it warped or burnt. All the same do a wet compression test too

 

If the compression test was done properly (with all plugs out) then b swapped is right about the valve, I'm not sure if rings are a factor here but the wet compression test can't hurt

 

Ok I'll have that done before I buy a new head so a bad valve and head gasket is what I'm taking from this compression test was done properly but wouldn't hurt to do it again

 

Oh hey guys what kind of prices should I expect for a wet compression test ?

 

you better hope the number don't jump by more then 10 that's all there is to say no set number for a wet test.

 

Ya that's what my book stated if the bottom end us bad I'm just gonna swap over to a good fresh motor

 

Pulled head poured acetone in each cylinder and none of them lost a drop