Fresh build now problems

[omarlee]

First of all I had a fresh build on a h22. everything replaced. But now the engine pours out blue smoke out the exhaust Did compression check and everything is good. I guess i need to do a leak down test?? Whats the next step? no oil in radiator and no nasty film underneath oil cap. im confused. shitty gas mileage. im stumped


thanks guys

[WilliamW]

When you say you did a fresh build and everything replaced, what does that mean? There are so many parts that could be "replaced" it's crazy. Did you replace pistons, rods, cylinder head, valve steams, cam shafts, it's a bit open to interpretation.

If your burning oil (which is usually blue smoke) there are only 3 ways for oil to be getting inside your combustion chamber. 1) Your piston rings 2) Your valve guides 3) your PCV valve.

If you have blown rings, your combustion pressure will force some oil out of the PCV valve and it will be burnt with your intake air. If your rings are good then I'd bet it's your valve seals / guides. Since your compression test came back "good" I'd start looking at the head.

[omarlee]

When you say you did a fresh build and everything replaced, what does that mean? There are so many parts that could be "replaced" it's crazy. Did you replace pistons, rods, cylinder head, valve steams, cam shafts, it's a bit open to interpretation.

If your burning oil (which is usually blue smoke) there are only 3 ways for oil to be getting inside your combustion chamber. 1) Your piston rings 2) Your valve guides 3) your PCV valve.

If you have blown rings, your combustion pressure will force some oil out of the PCV valve and it will be burnt with your intake air. If your rings are good then I'd bet it's your valve seals / guides. Since your compression test came back "good" I'd start looking at the head.

thats the thing all seals are oem and the head everything new. skunk2 head bronze valve guides blah blah. everything has been replaced. type s pistons new rings, everything has been replaced. but still pouring out blue smoke on idle what will a leak down test do? will that tell me if the seals went bad even though they are less then a year old??

[wed3k]

check if you have blowby. new piston rings? who honed the cylinders?

[omarlee]

check if you have blowby. new piston rings? who honed the cylinders?

how do i check if i have blowby? new piston rings and the block was good and didnt need a hone. lmk plz

[wed3k]

take off the pcv or fresh air inlet and check if theres air coming out. you always hone with new piston rings. there's probably no silicone impregnation left int he liners which equals no ring seal.

[omarlee]

take off the pcv or fresh air inlet and check if theres air coming out. you always hone with new piston rings. there's probably no silicone impregnation left int he liners which equals no ring seal.

well damn. should i run 20 50?

[omarlee]

take off the pcv or fresh air inlet and check if theres air coming out. you always hone with new piston rings. there's probably no silicone impregnation left int he liners which equals no ring seal.

air coming out pcv?
if air comes out pcv what does that mean?

[evil_demon_01]

well damn. should i run 20 50?

Thicker oil won't help if it's not sealing in the first place.
Cylinders should always be honed when fitting new pistons/rings.

You need to eloborate more when you make posts.
Were the pistons and rings new or 2nd hand?
Is it turbo'ed? What valve stem seals did you use?

Who did the work on it?

[omarlee]

Thicker oil won't help if it's not sealing in the first place.
Cylinders should always be honed when fitting new pistons/rings.

You need to eloborate more when you make posts.
Were the pistons and rings new or 2nd hand?
Is it turbo'ed? What valve stem seals did you use?

Who did the work on it?

pistons and rings are new and I did state that already. its NA and i used oe stem seals. now that im thinking about it I dont think the machine shop honed the block. I should pull it back out huh

[evil_demon_01]

pistons and rings are new and I did state that already. its NA and i used oe stem seals. now that im thinking about it I dont think the machine shop honed the block. I should pull it back out huh

Who did the work on it? Has it still got OE valves? Did the machine shop build it?
Have you asked if they honed it? You need to find the problem before you pull it back out.

Like I said you need to elaborate more when you make posts.

[omarlee]

Who did the work on it? Has it still got OE valves? Did the machine shop build it?
Have you asked if they honed it? You need to find the problem before you pull it back out.

Like I said you need to elaborate more when you make posts.

the machine shop did all the work and skunk2 standard valves and i have not asked them yet if they honed it. all i know right now is that it pours blue smoke on idle and it lingers and stinks up my whole house. it put out 205 but man all that blue smoke is crazy. what does being built loose mean?

[evil_demon_01]

the machine shop did all the work and skunk2 standard valves and i have not asked them yet if they honed it. all i know right now is that it pours blue smoke on idle and it lingers and stinks up my whole house. it put out 205 but man all that blue smoke is crazy

If the machine shop did the work, take it back to them.
Skunk2 "Standard valves" - You mean direct OE replacements? - I'm assuming the stem diameter is the same as stock?

[omarlee]

If the machine shop did the work, take it back to them.
Skunk2 "Standard valves" - You mean direct OE replacements? - I'm assuming the stem diameter is the same as stock?

im calling them tomorrow. and yes direct replacements from skunk. matter of face the whole head is skunk except rocker arms

[HondaFan81]

Most likely you are losing compression through the cylinders and piston ring seal. Now, a new engine will take a bit to seal and will have blowby until then.

However, it sounds like this has been going on longer for you? This true? If so, then you should get with your machine shop and talk about the pistons and compare notes on how it was all put together, noting what was missed in that process.