'85 300TD Throttle Linkage What's Wrong? - PeachParts Mercedes-Benz Forum

punkinfair · #1 09-30-2010, 09:08 PM

What piece is this that needs to be replaced?

It's a car that a neighbor of mine is thinking of buying and this is the main linkage shaft that runs from the bulkhead to the linkage array on top of the cam cover. How difficult is this part to replace and is it a used only part or dealer? It looks like the rubber bonded part has separated from the metal rod and plate.

I am not familiar enough with 123 diesels to have a handle on what's involved to replace this part. it's possible we will try to replace or repair the linkage so the car can be driven about 100kM.

andrewjtx · #2 09-30-2010, 09:13 PM

Very easy part to replace. $45

http://www.allpartsexpress.com/ShopByVehicle.epc?q=1985-MERCEDES--BENZ-300tdt--/--L5_3.0l_diesel_turbo-Cables--Pedal--Lever--Components&yearid=1985%40%401985&makeid=MERCEDES+BENZ%40%40MERCEDES+BENZ%40%40X&engineid=1194342%40%40300TDT++%2F+L5_3.0L_DIESEL_Turbo%40%40300TDT&catid=Cables%2C+Pedal+%26+Lever+Components&subcatid=Accelerator%20Linkage%20Mount&mode=PA

What in holy hell did they rig that up with. I'd love see a larger pic of that area.

On the bright side, the owner probably states something like, "It's slow as crap and has no ass getting up to speed." So you low-ball them, spend $45 and 10 minutes replacing the pivot mount and your friend may have an OK car on his hands... But if that was so poorly neglected, you may have a boatload of other stuff to fix as well...

vstech · #3 09-30-2010, 09:17 PM

two 10mm bolts, and a aw**** clip. (it's what you'll be saying if you lose the clip!

newtodiesel · #4 09-30-2010, 09:36 PM

Very very easy I just did mine... and I am by no means a mechanic...10-15 minute repair tops...the parts are available above on the buy parts tab..

punkinfair · #5 09-30-2010, 09:57 PM

thanks or the replies. now i understand how that part works, from looking at the part photo.

andrewjtx · #6 09-30-2010, 10:31 PM

Quote:

Originally Posted by vstech

two 10mm bolts, and a aw**** clip. (it's what you'll be saying if you lose the clip!

Funny. That's what I said when I dropped mine. I've learned to keep my magnet stick handy...

tangofox007 · #7 09-30-2010, 11:30 PM

Quote:

Originally Posted by vstech

two 10mm bolts...

The original fasteners would have been sheet metal screws. M10 bolts would be serious overkill.

punkinfair · #8 10-01-2010, 07:44 AM

Quote:

Originally Posted by andrewjtx

What in holy hell did they rig that up with. I'd love see a larger pic of that area.

On the bright side, the owner probably states something like, "It's slow as crap and has no ass getting up to speed." So you low-ball them, spend $45 and 10 minutes replacing the pivot mount and your friend may have an OK car on his hands... But if that was so poorly neglected, you may have a boatload of other stuff to fix as well...

exactly so. it's rigged with steel cable. i have only seen the same photo, not seen it in real life. i am trying to get a better photo also. the car is for sale and a neighbor of mine is looking at it to buy. it's a florida car which is a huge plus up here where it's impossible to find a 123 that isn't a bucket. the car has issues but it's possible they are relatively minor, for instance this broken pivot.

the issue now is that i am looking at the car tomorrow and i probably can't get the replacement part in time.

what is the best guess of how this thing has broken and if it might be possible to fix it on site, temporarily? the car is over an hour away and we are going there prepared to return with it, preferably driven under it's own power, not towed. it may not happen this way, the car may be junk, but i want to be prepared for the best or worst.

so what do people think about using high quality superglue and kicker to put the rubber back together? i don't know this particular part at all, but it looks like it could separate/split in two so the the opposite sides of the rubber buffer would no longer be solidly connected to each other. some superglue and kicker might be able to fix this well enough to drive for an hour or so. i was thinking we could also bring supplies/tools and put a few machine screws through the sandwich to keep it together.

punkinfair · #9 10-01-2010, 08:06 AM

update, i can get the part today, good.

newtodiesel · #10 10-01-2010, 08:28 AM

when I had mine apart, the round part (looks like a skateboard wheel) was very brittle and just falls apart when you try to do anything to it

byronnash · #11 10-01-2010, 09:32 AM

That part was the first thing I replaced on my 300TD when I got it and probably the easiest thing I've done so far.

300TD's are hard to come by. I looked for months before I found mine.

vstech · #12 10-01-2010, 09:38 AM

Quote:

Originally Posted by andrewjtx

Funny. That's what I said when I dropped mine. I've learned to keep my magnet stick handy...

My dad is an old aircraft maintenance officer for the Air Force, and he uses a similar but a tad less politically correct term for those tiny clips that are nigh impossible to obtain, and keep track of as you remove them...