Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-18-2010, 08:32 PM
fred98050's Avatar
Registered User
 
Join Date: Aug 2009
Location: Seattle, WA
Posts: 214
Blowby video, how bad is it?

Here is a blowby video of my 85 300SD. How bad is it?

http://web.me.com/flangenard/Site/Movie.html


Thanks

Reply With Quote
  #2  
Old 02-18-2010, 08:38 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,850
Dude, you're gonna need a new engine







In two or three hundred thousand more miles.
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
Reply With Quote
  #3  
Old 02-18-2010, 08:44 PM
79Mercy's Avatar
Registered User
 
Join Date: Mar 2008
Location: Florida
Posts: 4,131
Looks fine to me, not much at all.
__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
Reply With Quote
  #4  
Old 02-18-2010, 08:49 PM
Registered User
 
Join Date: May 2008
Location: southern CA
Posts: 416
I don't think that's the end of the world.

My indy showed me a different way to judge blowby, [U]I am not sure how valid it is but/U] I do think it's less subjective than looking at how the cap jumps. Pull the valve cover vent tube and plug the opening. He claims if the motor stops in under 5 seconds you have trouble, 5-10 sec mid life, 10 seconds or more is a tight motor.
__________________
1972 280SE 4.5
Reply With Quote
  #5  
Old 02-18-2010, 09:02 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
Quote:
Originally Posted by billhard View Post
I don't think that's the end of the world.

My indy showed me a different way to judge blowby, [U]I am not sure how valid it is but/U] I do think it's less subjective than looking at how the cap jumps. Pull the valve cover vent tube and plug the opening. He claims if the motor stops in under 5 seconds you have trouble, 5-10 sec mid life, 10 seconds or more is a tight motor.
There's a possibility that the test will blow a seal. Also, if there is a weak seal somewhere, the test won't tell you anything about crankcase pressure.
The best objective test on here is the 'fill the garbage bag' test. If you search on it you'll get the size of the bag and the length of time other engines have taken to fill the bag.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #6  
Old 02-18-2010, 09:10 PM
Registered User
 
Join Date: May 2008
Location: southern CA
Posts: 416
Quote:
Originally Posted by kerry View Post
blow a seal
Hey leave my personal life out of this!
__________________
1972 280SE 4.5
Reply With Quote
  #7  
Old 02-18-2010, 09:25 PM
Inna-propriate-da-vida
 
Join Date: May 2008
Posts: 1,969
Doesn't seem overly concerning to me.

Does seem like you could stand to adjust your throttle linkage.....
__________________
On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST

1983 300SD - 305000
1984 Toyota Landcruiser - 190000
1994 GMC Jimmy - 203000

https://media.giphy.com/media/X3nnss8PAj5aU/giphy.gif
Reply With Quote
  #8  
Old 02-18-2010, 09:39 PM
Registered User
 
Join Date: Apr 2006
Location: Canada, Ontario, Hamilton
Posts: 288
with no blowby like that, it should start faster

adj valves and with the first compression stroke she should go

only a gasser chugs to start, i love how easy the 617 can start in good weather, tap the key over and she gooood


but ya, ur good to go untill the oil fill cap jumps off, yours is doing the shimmie


it just starting to get broken in
__________________
1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting
1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal
1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace
1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,
Reply With Quote
  #9  
Old 02-18-2010, 10:09 PM
A work in process...
 
Join Date: Oct 2009
Location: Texas
Posts: 985
That is one beautiful engine. Sounds good too. You're just fishing for compliments.
__________________
Codifex
1981 240D ChinaBlue (Got her running with a donor engine.)
1983 300DTurbo w/sunroof.
1984 300TD manual sunroof. (Electrical Gremlins)
Reply With Quote
  #10  
Old 02-18-2010, 10:29 PM
fred98050's Avatar
Registered User
 
Join Date: Aug 2009
Location: Seattle, WA
Posts: 214
Quote:
Originally Posted by Codifex Maximus View Post
That is one beautiful engine. Sounds good too. You're just fishing for compliments.

Went to get some parts today (air filters etc...) the mechanic looked at the car and told me that it had excessive blowby. This is my first diesel and first MB I have no idea how it should look. Don't know anyone with a diesel MB that I can compare to. Wanted a second opinion from people who actually know the car.

Car runs great, no complains here. Glad this look normal. Thanks.
Reply With Quote
  #11  
Old 02-18-2010, 10:34 PM
79Mercy's Avatar
Registered User
 
Join Date: Mar 2008
Location: Florida
Posts: 4,131
Don't go back to that mechanic. Your car is fine.
__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
Reply With Quote
  #12  
Old 02-19-2010, 12:08 AM
soothappens's Avatar
Registered User
 
Join Date: Nov 2009
Location: Alamo city
Posts: 494
Excessive ?

If you would have done that to mine it would have blown the cap out of your hand covered you and the engine in oil and fogged the engine compartment with smoke !

Enjoy the many many years/miles it has ahead.
__________________


Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
Reply With Quote
  #13  
Old 02-19-2010, 01:14 AM
JimmyL's Avatar
Rogue T Intolerant!!!
 
Join Date: May 2004
Location: Sunnyvale, Texas (DFW)
Posts: 9,675
So many folks ask this question. I have another:
What are you gonna do differently with the car whether we say it has excessive blowby or doesn't?
We all drive our cars for as long as they will start in reasonably cold weather or either uses simply too much oil to keep up with.
So, don't worry about it and focus attention elsewhere. There are plenty more things to worry about, and they will pop up. they always do.....
__________________
Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John
Reply With Quote
  #14  
Old 02-19-2010, 01:34 AM
layback40's Avatar
Not Banned
 
Join Date: Nov 2009
Location: Victoria Australia - down under!!
Posts: 4,023
When the smoke is coming out like a steam train going up a hill, then you have a blowby problem.
What you have is a good motor. Dont go back to that mech !!
__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
Reply With Quote
  #15  
Old 02-19-2010, 06:33 AM
Alastair's Avatar
Registered User
 
Join Date: Mar 2002
Location: South Wales U.K.
Posts: 1,064
Nothing wrong there....

Lovely engine!

Enjoy!

--Keep up regular oil-changes, maintenance etc, and no reason it wont reach 500K!

__________________
http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 11:05 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page