I am disconnecting my engine from the car, but Im having trouble with one HEX left which is very hard to get to, but I manged. The major problem is getting it off, I pushed Pushed , Pulled. nothing wont budge,(sprayed WD-40 also nothing) Any idea what to Do, my last option is using a huge air gun!! POWER!! but im afraid....


I am disconnecting it from I think the trany, Its a huge Circular part, with like 7 regular 17 mm bolts and like about 3 Hex bolts.

1983 300SD, 156K miles

Is there any way to heat it up? I don't use WD40 unless I want to displace water (Water Displacement trial #40), I normally use liquid wrench (non-flammable so I can use the torch later ) on seized parts.

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Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k

But WD-40 is so efficient at torching those pesky black widows!

(Yes, I know a guy who did that once...and ruined his router table in the process)

And an excellent (non-ether) starting aid too.

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Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.

BenzBoy8,


What you need is a hot acetylene torch and a little less timidity.

Works every time.

P E H

I found it much easier to pull the engine and transmission as an assembly, then pull the trans off the back of the engine once it's out of the car. It might sound like more work, but it's actually a time saver and knuckle saver.

SteveM.

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'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner

You guys must still have the old WD40. The new stuff is NON-FLAMMABLE! (Ask me how I know!) It didn't work at all when I tried to start the the Lawn Boy mower after it had sat for a while.

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FAA Certified A&P Tech
Still lookin' for my diesel! <><

Perhaps, the Liquid Wrench I use is in a different bottle and may be a little more money but if torching around rubber parts sometimes I use it to stop fires from happening! Up until a year or so ago I never seen it before, it is in a green bottle.

__________________
Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k