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Old 08-07-2005, 01:27 AM
Austin85's Avatar
Smells like Diesel..
Join Date: Jun 2005
Location: Boca Raton, Fl
Posts: 2,723
Arrow Valve adjust wrench source...

per the valve adjust tools ...this shop made a custom tool ...I never used them for this; but spoke with them and seem extremly compitant...


click on link to "tools and specialty"....

there's alot of helpful manuals and tools here...

'87 924S
'81 280SEL

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81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

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Old 08-07-2005, 01:48 AM
JamesDean's Avatar
Electrical Engineer
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
I ordered the valve adjustment kit from them, it worked quite nicely. My first time so it took some time getting used to how to do it.
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Old 08-08-2005, 09:06 PM
Join Date: Jan 2005
Location: Silver Spring, Maryland, and Larkspur, Colorado
Posts: 123
Austin, JD, Members,

We have two 85 300D turbos in the fleet. Came time to adjust the valves I looked up the bent wrenches on several sources; found a pretty good set of pictures; noted the bend angles and decided to make my own.

Went to Sears to get a couple of standard Craftsman 14mm combination box/open enders. Hey! They carried an asian knockoff series for $4 each. Took them to the counter and -- hey, hey -- 50% off sale, just for that day!

Put the open end in a bench vise and Mapp-gas heated the shaft till past cherry red. Put an open metal tube (or pipe) over the end and gently bent it to the approximate degree shown in the photo. Backed the shaft down into the vise about 50mm, applied heat, and bent the shaft back the other way.

Let air cool. Tested on the valve locking nuts. Perfect. Dittos on the second wrench but with some minor length adjustment so that the two together nest as would spoons.

Total outlay: $4 plus tax, and the cost of the Mapp gas from my DYI plumber's tool box.

If I can find my daughter's protractor, I'll send along the actual degrees of bend, plus a photo.

For grins, I always replace the valve cover gasket and, since the linkages are apart, hit those ball joints with white grease.

Good luck!

85 300D turbo 270,000
85 300D turbo 210,000
94 E320 wagon 170,000
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Old 08-08-2005, 09:18 PM
Registered User
Join Date: Apr 2005
Location: Northern NY
Posts: 362

Have been buying the misc part from Kent (**************) for a couple of years. At times a bit pricey, but always good quality stuff and a pleasure to deal with.

2005 C240 4matic wagon (daily driver)
87 190D - 225K (on loan)
85 190D - 312K (on loan)
2011 Subaru Legacy AWD (Wife's)
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Old 08-08-2005, 09:39 PM
angst's Avatar
Registered User
Join Date: Feb 2002
Location: Chattanooga TN
Posts: 272
Im a big fan of the DIY make your own tool like described above. I did mine with a $10 propane torch and a couple cheap pawn shop 14mm wrenches. If you have a grinder wheel it helps a lot to take the wrench and grind it a bit thinner too.
When you are done do the trick of tying a string to the closed end so you can drop it while doing the work and you wont have to go dig for it down in the engine.
84 300SD 274K
38K miles on flatplate heat exchanger and various diesel/veg blends. prior to that 4K miles on unheated veggie blends with kero and DinoD.
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Old 08-08-2005, 10:57 PM
Hit Man X's Avatar
Join Date: Sep 2004
Posts: 9,087
Thumbs up

Originally Posted by angst
When you are done do the trick of tying a string to the closed end so you can drop it while doing the work and you wont have to go dig for it down in the engine.

I do this when changing Glow Plugs.
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
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Old 08-09-2005, 07:57 AM
Registered User
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
See last post for picture....

Bending Valve Adjustment Wrenchs

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