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1991 420 SEL
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70 Posts
Discussion Starter #21
Wow that looks great! Good luck on it. And thanks for the suggestions. Next time I'm at the front suspension I'll have to check it out carefully.

No self leveling rear and the brake fluid looks new. I had the wheels pulled Sunday and the brakes look great! I feel I can safely ignore them till spring :D Man this car is clean. I hate to drive it in winter.

I got my fuses. They're plastic and aluminum - of course. I emailed the seller and told him so, he said 'Why did you say that? They're copper and ceramic' lol. I feel a claim coming on, though it's minor. I'll give them to ReStore.

Per Dr Greenes suggestion I bought a spare ignition control module. I'll be replacing the heat transfer cement on the existing one soon. Friday I'm off to get the undercoating, get new tires, and mount studded tires on a spare set of rims I picked up the other day. A thousand dollar tire day! Oof.

I'll report back on the undercoating.

Pete
 

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1991 420 SEL
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70 Posts
Discussion Starter #22
Oh almost forgot - got the new ignition cylinder in. Had to play with the rod ( :-D ) a little to get it out but no real issue, glad I did it.

I told my wife she owes me $375!

Pete
 

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R/C107s,W/C126s,W124s, W463s, a W140, W163 and an R230
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4 Posts
Sheepskins just arrived for mine, and a set for one of the wagons - just in time for winter (y)
I wanted to get some nice sisal mats as well but the color is on back-order :(
(shameless copy and paste image from another BW member - good taste!)
2606974

In the mean time, I'll take some of my own advice and service the Hydro-pneumatic rear suspension.
I was surprised to find this car has no EGR. I guess Canada emission regs were different than Ca/US in '90. Ignition trim resister is euro. I wonder if this is a high compression motor? Time to scrub for numbers when I'm at the car in a week.
The rear role-away shade is cool . . . the cushy foot cushions for the rear occupants are a tad gross - conceptually I mean. And the Original Mercedes/Alcatel telephone is still in it. It has a curly cord and everything! I think it requires wood or coal gasification to power it though, and probably only calls people still living in the 90's . . . in Canada I'm guessing.

Phil
 

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1991 420 SEL
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70 Posts
Discussion Starter #24
Does it ring by going 'eh... eh... eh... eh...' :)

I LOVE those mats.

After doing the guide rod mounts I understand the front suspension. Very! different.

I also had the car undercoated and new Michelin Premiers mounted. Took it to MB for an alignment and they handed me the bill - $227! I said, you quoted me $189. They said, tax plus shop fees. I said, you didn't include the $20+ fee in the quote. They did waive them (under duress I'd say), and I had a dealer coupon for $50 off, which they told me 'I was lucky a supervisor was still there because if not they wouldn't have been able to take it' - o reely. Anyway, it ended up being $156. This is a Penske dealership BTW.

But.... WOW! WHAT a difference. I noticed it after doing the mounts BUT now that it's properly aligned (it needed it before the mounts too) it's gone from being super nice to drive to being AWESOME to drive.

You can tell I really mean it by use of capitalized words lol. Seriously though I'm looking forward to my next road trip. I haven't enjoyed cruising this much since I got rid of my '85 Town Car.

What's next? Maybe a custom license plate that says '420 LUVR' - I'm sure the cops would love it!
 

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1991 420 SEL
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70 Posts
Discussion Starter #26
You know S320, I thought of that when I did the radiator/hoses/belts etc, but upon inspection it appeared fine, nice and stiff.

Is it a known failure part?

I am planning on brakes - they actually look really good for the most part but I have a kinda strange issue with the front rotors so complete brake job with new pigtails on the immediate horizon, , and the timing chain / tensioner job is looming large, with the rubber things in the intake manifold bringing up the rear.

It does take two turnovers to cold start, one try, no start, two tries, fires up. It's got new OEM cap/rotor/coil/plugs but lower grade new wires. Maybe I need to clean the injectors? Any ideas?

Pete
 

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'91 560SEC, '91 300SE (sold), '98 Yota, '02 S-10 Hauler
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8,930 Posts
Something to look at mainly from the age of the car is your rubber fuel lines both under the hood and out back at the pumps/filter. Several have gone up in smoke from old weak lines, also age related is you flex discs on the drive shaft. Beautiful car btw
 

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1991 420 SEL
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70 Posts
Discussion Starter #28
Thanks Wook. I feel like I talk too much about it, but up here in the salty north you don't see used cars anywhere near this clean often!

It's almost pathetic. I went to change the rear brake pigtail on my 91 S-10 (from NC) and it just broke loose like it was supposed to. Me and my friends couldn't believe it - that had never happened before. Because corrosion. And the joy of rust in your eyes....

I will check the fuel lines, that's a good one! I looked at the flex discs when it was on a lift and they look new. But the maintenance record on this is pretty thin, and it's so clean overall I really don't know if they're new, so they're on the list.

Pete
 

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1991 420 SEL
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70 Posts
Discussion Starter #29
Hey Wook, thanks for the gentle nudge towards the fuel system. I think my hard start issue may be fuel pressure related - if I turn the key and wait a minute it starts a little better.

Good reason to buy a new tool! Fuel pressure tester kit maybe :)

And (as I mentioned in the w126 thread) I'm getting a noise that sure sounds timing chain related!
 

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'91 560SEC, '91 300SE (sold), '98 Yota, '02 S-10 Hauler
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Hey Wook, thanks for the gentle nudge towards the fuel system.
I mentioned the rubber fuel lines because like I said a few members have lost their rides due to a car-b-que and I believe I came close. I "deadlined" my car as soon as I got her home, see pics, everything rubber was replaced all the way to the tank

Cracked Fuel Line.JPG


Fuel Lines.JPG


And now with added insulation on the fuel cooler
Fuel Coolerer.JPG
 

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8,525 Posts
Get the copper ceramic fuses from Kent bergsma the mercedessource youtuber
 

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Registered
1991 420 SEL
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70 Posts
Discussion Starter #32
I see Wooky, that's a GREAT suggestion. I'll definitely put that pretty high on the list! After the timing chain. Working in the winter soon, brrr.

tusabes, thanks. Unfortunately Ken's out of stock. According to one ebay seller the aftermarket manufacturer Flosser has discontinued the ceramics.

I went though the fusebox, cleaned and treated all the connections and treated and replaced the fuses. A couple comments on fuses. I noticed there are at least two lengths, one taller and skinny and one shorter and fatter, which is partly why I couldn't fit the brass elemets on the ceramic bodies I had. I suspect if you look hard enough or spend tons buying random fuse kits :) you'd find a match, don't know for sure. Also, the new plastic Flosser fuses are still way, way better quality than the straight from China plastic set I bought, the plastic is way different.

I finally bought all ceramics here: https://www.ebay.com/itm/8amp-16amp-25amp-Ceramic-Fuse-Pack-of-36-Made-in-Germany-Ships-Fast/162250842679?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

No affiliation etc. Of the set, the blue ones seem to be of particularly good quality.

Pete
 
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