E-Class (W114/W115) 1968-1976: All Models

Rebuilt top end on '73 280E - won't start! Help me please!

Old Jul 1, 2018 | 01:33 AM
  #1  
ledmeter's Avatar
Thread Starter
Newbie
 
Joined: Jul 2018
Posts: 2
Likes: 0
1973 W114 280E
Rebuilt top end on '73 280E - won't start! Help me please!

Hey all, thanks for looking if you're looking
I recently (two months ago) took my beloved 114 off the road to replace a breaching head gasket. It transformed into a top-end rebuild and head reconditioning. I've painted the engine bay and polished everything as it was going back in, with new parts and new nuts/bolts and a freshly painted welded exhaust manifold (it had cracked due to some negligent driving by the previous owner).
Everything went in nicely, all clean and shiny, which was quite a process as the car is at my mechanic friend's place, and he did most of the disassembly while I wasn't there, so I had to figure it out when I didn't know. There have been a lot of 'breaks' to consult google images to see what happens where

so finally the thing is fully reassembled and it just will not fire up.

Flywheel is positioned at TDC, sprocket markers line up, rotor is at point #1, fuel is arriving at the jets, the leads give spark, the plugs and leads and coil are new.

There's a strange sleeve sensor which comes from the diagnotic plug, and in some pics online it is shown sleeving lead #1. I can't make it fit my #1 lead no matter what I do, I've tried the old lead as well. Is this an important component or is there just some other issue? I really need to start this car, as it's a 40 min walk from my house, and the girlfriend of the driveway owner wants the car gone
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 03:35 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE