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Very rough start and lots of white smoke comes out. Topic is solved

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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abscate
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Re: Very rough start and lots of white smoke comes out.

Post by abscate »

Keep at it. Sooner or Later it will yield...
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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jking4020
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Post by jking4020 »

Can you please explain the "ram tube in" cleaning method?

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abscate
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Post by abscate »

There is a port that runs up a casting in the block that plugs with sludge in a neglected engine. By ramming a piece of tubing into the port, you remove the sludge about a cm at a time , pull the hose out, either clip it or blow the sludge out , and repeat

There is a nice set of pictures in one of the PCV threads.
Empty Nester
A Captain in a Sea of Estrogen
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erikv11
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Post by erikv11 »

If the blockage is all hardened (very common) you will need something much harder than tubing, like a screwdriver or drill bit, to clean out the port. You really want to get the hole completely free of debris.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

jking4020
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Post by jking4020 »

I just put a long zip tie down the lower port and it went most of the way in. Like 6" or so. Both ports on block are free of clogs. Where in the hell would the crank case still be plugged? Pan removal?

beigg
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Post by beigg »

Valve seals have to be allowing the oil to billow out.
ugh smh 850 Turbo fridge

jking4020
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Post by jking4020 »

It's gotta be that. I re did the whole pcv today. Replaced vacuumed lines. Did 5/8" heater hose replacement on main return line. Put seafoam in where was instructed.Thanx for all replies and help. I learned a lot about my engine in all this. I'll keep up to date on how this all turns out.

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erikv11
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Post by erikv11 »

Also make sure the hoses are not reversed on top of the oil trap. The one at the back left goes to the top of the head.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

jking4020
Posts: 115
Joined: 4 April 2016
Year and Model: 1997 850, 2001 v70xc
Location: nebraska
Been thanked: 3 times

Post by jking4020 »

I yield. Can't figure out where the excess pressure is coming from. Im gonna get new maf sensor. I so appreciate all the help. Love this site.

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