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 11-01-2005, 06:24 PM
deerefanatic's Avatar
Diesel & John Deere Nut
 
Join Date: Jul 2005
Location: Sturgis, MI area
Posts: 849
Should have adjusted the valves ages ago.

I just got done adjusting my valves about 200 miles (1.5 weeks) ago. Front half of the engine was VERY tight, back half wasn't too bad with the #5 intake valve being right in spec.

I cleaned off the valve cover with Napa Aluminum Rim brightener. looks great!

It idle much smoother and starts easier as expected, but it seems to have drastically improved my fuel mileage!

Before, in my normal mixed highway/city driving, I'd get about 21.5-23 mpg. After I adjusted my valves, I filled up with the same fuel as normal, used the same amount of Stanadyne additive as normal, and drove the same amount as normal, and got 26.35 MPG!!!

It's amazing!

__________________
-Matt

EPA Section 609 Certified MVAC Technician
-----------------
Oil Burner Kartel Member #10

Ahh the smell of Diesel Fuel, it's like coffee in the morning!

My Car:

1982 300SD Turbo Diesel (231,500 miles!) RIP

1984 300SD Turbo Diesel Custom (235,500 mi on driveline.) - On Road!!

www.icsrepair.com

Reply With Quote
  #2  
Old 11-01-2005, 06:45 PM
sailor15015's Avatar
Reverse lights! Score!
 
Join Date: Apr 2005
Location: Norman, Oklahoma
Posts: 1,184
I did my vavles this weekend. They were all a little tight and now that I've got them back in spec I'm hearing a weird swishing noise coming from the back of the engine. When I disconnect the flex tube going to the air filter and stick my ear to it I hear a weird thumping noise. I'm going to go back in this weekend because I think I might have gotten them a little loose if anything. Power's the same, though. So's MPG.
__________________
Seth

1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo
Reply With Quote
  #3  
Old 11-01-2005, 08:32 PM
F18 F18 is offline
Registered User
 
Join Date: Oct 2005
Location: Massachusetts
Posts: 677
Some of my vehicles had responded very well over the years to doing seasonal valve adjustments. Valve lash does very enough with the ambient air temp. at the time of adjustment to warrant it but be careful. I am looking at your geographic locations. One in Michigan and Oklahoma. The extreme seasonal temp. changes in Michigan can cause havic with diesel valve clearance.
Pick a day with moderate temps for that season to get the best adjustment.
I adjusted valves on one of my gasoline vehicles one cold winter day (why? I don't know!) and nearly fried my valves. A cold adjustment at 20degs.F is alot different than one at 80deg. F. Of course I am doing this in a driveway or unheated garage.....

__________________
FRED

Daily Driver: 98 E300TD 199K
Hobby Car: 69 Austin Mini
Past Diesels: 84 300SD, 312K
87 300SDL, 251K
94 Chev. K-1500 6.5Ltr.TD, 373K
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 06:35 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