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Campbells soup can catch can on 89 quest


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#1 croquest87

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Posted 14 August 2018 - 02:36 PM

Soup can oil catch https://imgur.com/a/...                Always wondered what this was on my 89 ? So after a little investigation and taking things apart l realized that this is some super high tech catch can made from small cone shaped filter inside Campbell's tomato soup can. Along w some rtv and air line fitting. And it works! Basically  it prevents oversparay from the little filter into the engine compartment and it vents into atmosphere under the car. Stock catch set up is all there just not hooked w hoses to anything. So after doing some more investigating here is why this set up?  Lots of blow by and pressure building up and stock catch can can't keep up! It has been on there for who knows how long and l have been driving the car all summer.  Runs good . Compression test and leakdown tell me otherwise. 1=118 2=105 3=65 and 4=110    leakdown test shows 40% loss of compression on #3. Attempted to hook up stock catch can heavy oil burn on deceleration/lots of oil in ovcp  valve seals are fresh and oem pcv valve.  I guess whoever owned this knew how to work this very well. But hey it's not broke yet why fix it  right? Just gonna drive it as is for the rest of this summer. Engine is due for re build for sure.Have extra block laying around that needs to go to Randy for some machining and such. Thought this would be one classic story on can recycle and pollution control lol

Edited by croquest87, 14 August 2018 - 03:12 PM.






#2 importwarrior

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Posted 14 August 2018 - 03:55 PM

Yeah that’s pretty good.

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#3 Preludedude

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Posted 14 August 2018 - 07:50 PM

The car runs smooth with low compression on cyl3?

#4 croquest87

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Posted 14 August 2018 - 08:34 PM

When l first start it has a little shake for about minute. And smooths out after things warm up. Runs drives perfectly normal. No smoke out the exhaust or nothing you can hear miss hear and there when at idle.l am very surprised myself. I checked #3 and got 65  twice   after l added some oil through the plug it moved up to 75  l have not checked it when at full operating temperature yet maybe that will yield better numbers?  Cleaned up the catch can in ultrasonic cleaner w some diesel new valve seals and new pcv oem. It never smokes on boost just when you let go off the pedal after very light boost. Could not hear hissing or bubbles from radiator or intake during compression check/leakdown just some hissing in the crankcase on all 4 which is normal.  #3 was showing  40% loss. Unless cylinder head has a crack or block cracked where l cant see it l guess magnaflux would show it. Venting it in the atmosphere w that stupid metal can lol no smoke on boost or after.  When l hooked up the oem catch can there was a very noticeable amount of oil drawn/pushed into the intake almost like it's blowing it up through the oil return up into the catch can and gets sucked in by the turbo and heads towards the throttle body.It never smokes at idle or nothing like that.   Also tried this  pulled the hose on top of catch can that goes to the rubber acordian before turbo it's a 3/8 hose and plugged it w spark plug  car instantly turned into a smoke machine at idle!

Edited by croquest87, 14 August 2018 - 08:57 PM.


#5 Turbo Cary

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Posted 15 August 2018 - 05:36 AM

Wow that's hard to read. Try breaking your sentences down into paragraphs.

as for your engine issue, it sounds like a ring issue. No way a car can run "normal" with a 40 psi difference on one cylinder. Thats a big leak down. I would redo all your compression and leak down testing again with the engine hot and cold to make sure you didn't get incorrect numbers.

#6 croquest87

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Posted 15 August 2018 - 07:41 AM

View PostTurbo Cary, on 15 August 2018 - 05:36 AM, said:

Wow that's hard to read. Try breaking your sentences down into paragraphs.

as for your engine issue, it sounds like a ring issue. No way a car can run "normal" with a 40 psi difference on one cylinder. Thats a big leak down. I would redo all your compression and leak down testing again with the engine hot and cold to make sure you didn't get incorrect numbers.
I put all my sentences together didn't l?
Will re do compression testing like you said  thank you

Edited by croquest87, 15 August 2018 - 07:43 AM.


#7 croquest87

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Posted 19 August 2018 - 10:14 AM

Cylinder #3 compression https://imgur.com/a/jlqWCTw

Cyl #3 compression  cold or after wormed up  same result.
https://youtu.be/ynLBgrX39w0

Edited by croquest87, 19 August 2018 - 10:43 AM.


#8 Funky Phil

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Posted 19 August 2018 - 12:06 PM

Leaky valve
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#9 croquest87

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Posted 19 August 2018 - 03:47 PM

View PostFunky Phil, on 19 August 2018 - 12:06 PM, said:

Leaky valve

Sounds like it's time for valve job. Thank you

#10 Funky Phil

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Posted 19 August 2018 - 11:55 PM

Why is the pcv disconnected? Prolly alot wrong with el mortar

Edited by Funky Phil, 19 August 2018 - 11:55 PM.

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#11 croquest87

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Posted 20 August 2018 - 05:38 AM

If you read my long post above it will explain. Personally l think it's gonna be complete re build once l open it up.   When l re did the leakdown yesterday.     l am not getting any air hissing through the intake or exhaust only through crankcase.                              Stock catch is just not catching up on boost.

If stock catch hooked up l get oil smoke on almost every shift at the exhsaust.
No coolant loss.
Oem pcv valve new
New valve seals
No smoke under boost  only when shifting

Edited by croquest87, 20 August 2018 - 05:40 AM.


#12 Tim_C.

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Posted 20 August 2018 - 02:56 PM

Puff on shifts is rings. Blow to crankcase is rings of course.
I've found there is no cutting corners on these engines. Do it all and do it right and you can't go wrong. Otherwise, you'll be doing it again soon.
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#13 croquest87

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Posted 20 August 2018 - 03:35 PM

View PostTim_C., on 20 August 2018 - 02:56 PM, said:

Puff on shifts is rings. Blow to crankcase is rings of course.
I've found there is no cutting corners on these engines. Do it all and do it right and you can't go wrong. Otherwise, you'll be doing it again soon.
Yes you are absolutely right! Who knows what's in that thing and 140.000 miles .
Needs refreshed!

Edited by croquest87, 20 August 2018 - 03:36 PM.





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