my Celica is blowing smoke - info wanted please

**takai** · 08-11-2006, 07:57 AM

Remember to unplug your ignition coil output lead before doing a comp test, you dont want it actually starting on 3 cylinders while you are doing it.
Also, dont touch wood for the rain to stop, we still need rain.

**gianttomato** · 08-11-2006, 09:04 AM

Chris, plugs should be out of all cylinders anyway when doing the compression test.

If budget extends, I would recommend buying a compression tester that actually screws into the spark plug hole rather than a cheap and nasty Supercheap type that pushes into the hole. Usually, this is the cause of most test variability.

**shelldrake** · 08-11-2006, 09:06 AM

Originally Posted by takai

Remember to unplug your ignition coil output lead before doing a comp test, you dont want it actually starting on 3 cylinders while you are doing it.

Hope you're not too late Takai! Important.

**sillycar chick** · 08-11-2006, 09:38 AM

Originally Posted by gianttomato

If budget extends, I would recommend buying a compression tester that actually screws into the spark plug hole rather than a cheap and nasty Supercheap type that pushes into the hole. Usually, this is the cause of most test variability.

Yeah, i picked a screw in type up for $40 on ebay... aurora tools or something... havent used it to see if its all good yet but should be ok...

**minxgirl** · 09-11-2006, 07:25 AM

Originally Posted by takai

dont touch wood for the rain to stop, we still need rain.

The goddamn rain didnt stop! I think you jinxed me takai

*LOL* we are even getting hail here from time to time!

Im all paranoid about my car I dont want it hailed on, and I wanna change the oil (it's new oil in it but its thin and crapped out), and I wanna know what the compression is doing *tears hair out* I have a sinking feeling that the results of that test are gonna be bad *sigh* /end rant

Also Im looking more and more at that smoke its blowing and I think it is bluish white...

**minxgirl** · 10-11-2006, 03:26 PM

OK did the oil change - now Ive lost my electricals WTF...

**minxgirl** · 11-11-2006, 09:35 AM

Just a quick update - changed oil yesterday and cleaned plugs...didnt get to the compression test - but I have the tester now and Im hoping the break in the weather holds off enough I can do it when my b/f gets home and can mind the kids at lunchtime today

Having some electrical probs but I made another thread about that...
PS. I am pretty proud of myself - it was the first oil change *I* have actually ever done and I went it alone

*we* have done plenty - just that Id never done it *LOL* (It was way easy once I bought a new socket set cause the b/f is a toolwrecker and his 3/4 was literally broken

)

**IN 05 NT** · 11-11-2006, 10:41 AM

if you have any more probs, bring it up 2 me at midas hornsby....if your anywhere near hornsby...i'll do a compressiomn test in front of you,....

gluck, blake

**minxgirl** · 11-11-2006, 10:45 AM

Thanks for that

Its really nice of you to offer - as it happens I am a long way away *LOL* Im gonna do the compression test this arvo

Just waiting for my boyfriend to get home

**minxgirl** · 12-11-2006, 10:11 AM

Compression test done...*sigh*...
dry test:
135
140
140
140

wet test
170
170
210
170

I assume this means I need new rings...is this how petrol could be getting in the sump?

**minxgirl** · 12-11-2006, 10:16 AM

OK so Google tells me the petrol getting into the sump is the compression rings, and the oil burning (smoke from exhaust w/e) is the oil rings....
Does that sound about right?

**TheToyman75** · 12-11-2006, 12:56 PM

Jill,

Just found this thread. I have already replied in your compression test results thread BUT. 2 things of note for your DRY compression test. Dana has it covered well but some extra info.

1stly the test has to be carried out on a warm engine, not a cold one.

2ndly the test must be carried out at wide open throttle, ie accel foot to the floor

When does the car blow smoke and for how long ?

What oil are you using ?

Oh and check your breathers. If they are blocked it will presurise the engine and push oil past the gaskets.

**Omegaman** · 13-11-2006, 11:15 AM

i've been following this process and tried it yesterday.
This is on a 18rgu +E (EFI) 18RG CAMS, 9.7 COMP PISTONS.
IT HAS BEEN REBUILT BY ME, A House mechanic.
new rings. wet test is at 135 - 140 on piston 1,2,4 piston 3 at 100.
I did not have the engine at operating temp, won't start alarm kill switch problem.
Would No. 3 be due to A. new rings not turned correctly ie. gaps to close on oil& fuel rings.
B. valve not sealing
C.other, your call.
head was good on visual, I'm unsertain on timing though, I doubt that could be reason for 1 cyl to be out.
any help. maybe this Q will extend from current thread if not sorry for Hi-jack.