compression test results

[Andy]

Done a compression test on my grasser to day which is running a z16se with e16se bits,the engine smokes badly when revved and is misfiring too.
Did a wet and dry test just now and had these results..

1 Dry-170 Wet-380
2 Dry-176 Wet-350
3 Dry-180 Wet-350
4 Dry-180 Wet-380-before going off the scale!

Think I put a little too much oil in 4 LOL lost my oil can so had to improvise lol

Anyway,opinions and advice please??
To me theyre ok imo.

[therealnovaboy]

Yep. I'd say that's ok

When does it smoke. When you plant the foot or lift off?

[Andy]

when its planted

[meritlover]

dry test looks fine.

wet test looks like FAR too much oil.

compression test is not conclusive for smoke. could be loads of things. check your breather orientation, however, if its a grasser you probably have it to a catch can and not to the inlet....the search continues...

[Andy]

no catch can ml.standard setup as per the rules of this class
cleaned out the breather from the back of the block to the rocker cover to no avail

[meritlover]

Its probably rings/valve stems. Missfire is odd but my be unrelated. what have you done to your egr?

[Andy]

afaik it doesnt have one.
il have to start pulling it to bits to have a good look at things.
just did a test as it smoked and i suspected rings.all plugs are wet with oil

[Andy]

head can come off tonight then and get stripped to inspect.
may aswell just pull the lot out and do rings aswell i reckon

[meritlover]

strange how theyre all wet, more like wear than a failure, however compression looks healthy. see what happens when you pull your head off.

[Andy]

thanks for the advice mate
thats whatbi thought re compression
however all the stem seals going is a bit strange?

[therealnovaboy]

Any chance there's too much oil in it?

[Andy]

oil level is spot on

[Andy]

heads off,bores have no lip and piston crowns are incredibly clean to say its been burning oil.
There is sticky oil sludge in the exhaust manifold,oil in the inlet manifold too.
Meritlover,i do have an egr,its carbon'd up beyond belief!.
I'l get some pics up of my findings as soon as they load.

[Andy]

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone406_zpsedc7b6df.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone406_zpsedc7b6df.jpg.html)

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone408_zps693d7af0.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone408_zps693d7af0.jpg.html)

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone409_zpsb6da2acf.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone409_zpsb6da2acf.jpg.html)

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone413_zps100e9a11.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone413_zps100e9a11.jpg.html)

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone414_zpsc14f9886.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone414_zpsc14f9886.jpg.html)

[Andy]

Also why the fukk would someone do this???!!! Whats this gonna achieve?!

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone411_zpsbd888baf.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone411_zpsbd888baf.jpg.html)

http://i289.photobucket.com/albums/ll211/andyspics_album/andynewphone410_zps15016b50.jpg (http://s289.photobucket.com/user/andyspics_album/media/andynewphone410_zps15016b50.jpg.html)

[L14MNP]

Just steal another engine from some poor, hardworking soul.

#scummer

[Andy]

hahaha lol

[mowgli]

re the icv, its shagged, so lets seal it up.... the idle will be terrible though. unless its been adjusted to idle right, then the damn thing won't rev right.,.

[Andy]

it actually idle'd ok,and didn't rev up too bad either,was a quick car.I maybe thought at first that somebody has said to a previous owner,"ya wanna block ya egr" and they've got it very wrong perhaps??

[meritlover]

if the wet substance in the combustion chamber is oil then you have a significant leak point somewhere. if you are certain its oil then as ive said, compression tests arent really that useful for stuff like this. What you need is a cylinder leakage tester. but to do that you need the head back on it. if you have the head off then you might as well replace the stem seals as they cost pennies. check the guides for play at the same time.

there are only a few places the oil can come from:
breather (which you say is not tied into the inlet anyway)
stem seals or very worn guides (have a look down the ports and see if the back of the seats and valves are oil)
rings/bores
head gasket (looks fine by pics)

the EGR is of no concern, theyre better blocked off anyway.

blocking the ICV was retarded.

[mowgli]

ML has put some good points (as usual) this could be a breather issue. does the breather on the z16se bottom end work ok with the breather on the e16se top end??

it might be running really rich, getting fuel in the oil & thinning it so much that it gets past everything.

[Andy]

It seems to yes,i cleaned that out at xmas and it made little difference.
From what I can make out I have a z16se tall motor with e16se gear bolted to it.
Any markings on the head that determines the e or z head??
One things for certain,somebody has really had a mental breakdown at the engine shop who skimmed the head lol lol lol

[mowgli]

the e16se has egr, i don't think the z16se has it

what did they skim it with, a stihl saw?