Exactly. I noticed the large gap as well. Both nuts have to be touching for them to lock.

__________________
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge

We had a nice chat today..

This thread shows how to make the third wrench.
Home made Valve adjustment wrench info

Since several of my Hazet wrenches vanished.

I choose to buy both a 27mm and 30mm box end wrench, and cut a 20mm slot to make custom line wrenches.


.

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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

It's always reassuring talking with Roy . Yup, what I was calling the "bottom nut" was actually the middle nut and the 27 mm REAL bottom nut was stuck onto the middle one. Roy gave me instructions on making the third wrench myself, but I ended up using a screwdriver instead as shown in the picture. What a difference it was! I got it adjusted right off the bat.



The red arrow points at the screwdriver tip...

Attached Thumbnails

   

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Just be damned careful with screwdriver tip. As noted, I broke a valve guide screwing with that.

__________________
Eric, CPO, Submarines, retired.
Here's a sig line...
Mine: '68 Corvette LS1/4L65E, 83 240D, 2000 GMC 4x4, 08 FLSTC Anniv
Hers: '72 Corvette 454/4spd, '99 MB SLK, '93 Metro vert, 78 240D, '92 Silverado, '65 Fjord Rustang, '59 Fjord Fairlane, '17 Slingshot.

I'm glad it worked for you, but you need to be REALLY careful doing this... as even SLIGHTLY too much pressure on the screwdriver can crack the valve guide causing a catastrophic mess requiring the head to come off..

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Thanks for the warnings ! I just gently but persistently wiggled the screwdriver in there such that it held the bottom nut in place. I'll definitely make up a wrench for doing the valves in the 'SD, though.

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Smoker's got his thread on the subject somewhere (I can't find it now grrrrr)

But here's mine

http://www.peachparts.com/shopforum/diesel-discussion/276144-om-617-manifold-oil.html

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Hah -- I've been following Smoker's thread . I should have known better -- but at least I got it done! And now I know not to do it again.

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

IIRCC I was able to hold that 27 mm nut (on the one valve I had trouble with) using either an adjustable wrench or channel lock pliers. This was a few years ago on my 83 300D so my memory may be off.

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

To the dark side that way leads .

I did a lot of reading before I did my expensive and time consuming screwup, but made the mistake of not having an FSM.

Once you have one of these valves out, you can see just how fragile the guide setup is. This has the longest section of 'unhoused' guide area that I can remember seeing.

That's not a design issue, for what a guide does in normal operation it's perfectly fine, it does however leave very little forgiveness for lateral stress from the top, which is concentrated on that point where the guide enters the head.

I now have a ritual of petting that bottom nut tool every time I open that drawer in the box and saying nice things to it. Paid $92 for a used set of 3 Hazet's and it's $$s well spent.

__________________
Eric, CPO, Submarines, retired.
Here's a sig line...
Mine: '68 Corvette LS1/4L65E, 83 240D, 2000 GMC 4x4, 08 FLSTC Anniv
Hers: '72 Corvette 454/4spd, '99 MB SLK, '93 Metro vert, 78 240D, '92 Silverado, '65 Fjord Rustang, '59 Fjord Fairlane, '17 Slingshot.

A little off topic. What do the majority of the members use for no-go measurement on both intake-exhaust? Is 1mm over too much?

__________________
'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles

Given that the specs for the turbo are 0.1 mm for the intake and 0.35 mm for the exhaust... yeah, 1 mm off would be scary . To paraphrase Brian Carlton on the matter, CLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLATTACLAT TACLATTACLATTACLATTA


I just loosen the valve, lightly tighten it on to the feeler, back it off a tiny bit, tighten it there, and make sure that the valve is still good by trying to slide the feeler through. If it is off, I just fiddle with it.

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Nice one - if you take it out of context!!!!

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

forgot the decimal point 0.2mm for the intake 0.45mm for the exhaust ok?

__________________
'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles

I don't use a number, I use the slight drag/resistance....with any valve adjustment not just these beasties.

If I'm feeling less than confident I'll try the next larger gauge and make sure it's a no-go.

__________________
Eric, CPO, Submarines, retired.
Here's a sig line...
Mine: '68 Corvette LS1/4L65E, 83 240D, 2000 GMC 4x4, 08 FLSTC Anniv
Hers: '72 Corvette 454/4spd, '99 MB SLK, '93 Metro vert, 78 240D, '92 Silverado, '65 Fjord Rustang, '59 Fjord Fairlane, '17 Slingshot.