Author Topic: M130 engine assembly odds and ends (Read 2128 times)

K-Jet · « **on:** July 24, 2023, 21:25:17 »

Good evening,

My 1971 280SE currently has a 250SE motor installed. I am in the process of assembling a 2.8 liter replacement and have some questions. It seems like these motors are so intricate that 100 years of experience may not be enough, but here we are. I have the parts manual for the motor, but there is much that is not included there.

1. (first picture) Unlike the 250 motor, the water outlet from the head for cabin heat comes straight out. I assume there is a specific curved hose for that connection. Does anyone have a part number?

2. My car came with air conditioning. Does anyone have the part number (or specification) for the bolt that goes into the front of the head and holds the FI line bracket and the A/C bracket?

3. (second picture) The bracketry and hardware surrounding the power steering pump are still a mystery to me. Is there a parts diagram that shows a) how the bracket should attach to the motor and b) how the pump should interface with the bracket?

4. (third and fourth pictures) Being an A/C car, there are some special complexities. One is the idle speed solenoid. I have two different kinds of brackets to choose from with two different solenoids that act on two different parts of the linkage. Is one more correct, or more effective, or should aesthetics be my guide?

5. And unfortunately, neither solenoid that I have works. Do you have an extra that does? Or do you know of a possible source?

Many thanks. This has been a long road already, and there is more to be done!

Dru

dirkbalter · « **Reply #1 on:** July 24, 2023, 22:19:41 »

I usually have good luck finding a part numbers here:

https://nemigaparts.com/cat_spares/epc/mercedes/

I also have the same or similar car. If you need me to take pictures of certain areas or components, let me know.
Dirk

Leester · « **Reply #2 on:** July 26, 2023, 20:03:57 »

Hello Dru, I believe your second photo show the power steering bracket correctly attached to the block. Here are some notes and photos I took a while back.

Leester · « **Reply #3 on:** July 26, 2023, 20:21:01 »

Having trouble with photos, Will try more power steering photos later. With respect to the cooling hose the attached page from the SLS catalog shows 2 different hoses, 5 and 6. I believe that one of these is what you're looking for but you should double check.

Leester · « **Reply #4 on:** July 26, 2023, 20:23:56 »

Back to power steering

Leester · « **Reply #5 on:** July 26, 2023, 23:51:29 »

I replaced the original W113 AC bracket with a W108 bracket and the upper front attachment point (where the bolt also holds the front bracket for the FI lines) uses an M12 bolt (19mm hex head). I am not sure of the pitch though. In my case it was about 50mm long.

I think there are only 2 pitches. Be sure not to use too long a bolt or you will strip the threads out of the head.

Pawel66 · « **Reply #6 on:** July 27, 2023, 12:34:47 »

Well, be careful there with the bolt/thread sizes for fitting the PS pump!

The screws/bolts that screw into the pump may be standard screws, not metric! Yes, 14mm wrench fits the head, but you will ruin threads in pump housing if you have standard threads as it may be 3/8", not M10.

https://www.sl113.org/forums/index.php?topic=34425.msg252080#msg252080

Pawel66 · « **Reply #7 on:** July 27, 2023, 12:51:43 »

I was trying to figure out part number for your block fitting-heater hose, but could not be sure what it is. I guess you have W111, but the first 6 digits of VIN would be needed (if you are fitting the type of engine that originally was in the car). Pagoda part number for that hose may not be correct as it may not fit the heater (it is a formed hose, not hose sold by meters). When I looked at hoses for W111 - I could not figure out which part you may need - show me on the picture, the picture is for W111 024, not sure if correct.

In any case - I would buy all rubber from Mercedes.

As for the Constant Speed Solenoid - they were available at Mercedes, no problem still a couple of years ago (PN A 000 072 05 00), but they are no longer there. Wanted To Buy here or ebay may be options.

K-Jet · « **Reply #8 on:** July 27, 2023, 21:27:11 »

Dirk,

Thank you. I don't find the specific things I need on these parts diagrams. Seems like there are some holes in the available documentation.

Dru

K-Jet · « **Reply #9 on:** July 27, 2023, 22:03:50 »

Lee,

Those are some tremendous photos of the power steering complex. Wow. What a great help.

As far as the hose, it will be number 6, as I have the straight connection (number 19) coming out of the block. Can you tell me how to find the parts diagrams on the SLS website? I am not having any success whatsoever. Their diagrams look tremendously useful, but I can only get to parts.

I believe the pitch of that bolt is 1.25. I can measure the hole depth and the bracket thickness (when it comes back from the coater) and get to what I need to know.

Dru

K-Jet · « **Reply #10 on:** July 27, 2023, 22:17:04 »

Pawel,

Thank you for the warning on the through bolt. I believe I have all the pump-to-bracket hardware, so should not be scrounging from the orphaned fastener box.

I have a W108.018 with motor type 130.980. (W108 018 12 065696). I think it is #6 on the diagram Lee posted. My local Mercedes parts man is just out of school and doesn't know much, so working with him is a real challenge.

The constant speed solenoid is going to be a problem for sure. How necessary is it?

Dru

Leester · « **Reply #11 on:** July 27, 2023, 23:14:57 »

Hello Dru,

First off i completely agree with Pawell. Its a good idea to thread these bolts by hand to ensure proper bolt size. As Pawell points out you may run into some SAE bolts and in the case of most metrics there are typically two different pitches. Good call Pawell!

To get to the SLS catalog go to https://www.sls-hh-shop.de/main/en then click on W113 which will take you to the catalog. Then for this cooling hose go to the "cooling" section.

Unfortunately SLS doesn't provide MB part numbers. The Nemiga catalog that Dirk pointed out does provide the MB part number which is why its better. Its a little tricky getting into the catalog and I've forgotten how to do it - maybe someone else can weigh in on that.

K-Jet · « **Reply #12 on:** July 28, 2023, 00:15:36 »

No wonder I couldn't find the parts diagrams- I was at https://www.theslshop.com. Hose ordered. More to come.

Pawel66 · « **Reply #13 on:** July 28, 2023, 09:28:41 »

It is difficult to find these parts as, for W113, they are not on drawings in the EPC, you need to look for them in the parts list.

Ok, trying to sort it out:

1. The hose no. 6 on the drawing is

PN A113 831 09 94 (HOSE 360 MM FEED LINE FROM ENGINE TO HEAT EXCHANGER) for chassis: As of ident. no.: 044 017154
001; Up to ident. no.: 044 017199; As of ident. no.: 044 017200 SEE ENGINE PARTS LIST. Note says: order by meter, but I would check it as I recall this is a formed hose (I bought it a couple of years ago), so I do not fully trust this note.

PN A 113 831 08 94 (HOSE 360 MM FEED LINE FROM ENGINE TO HEAT EXCHANGER) for chassis: Up to ident. no.: 044 017153. Note says: order by the meter.

But it is all for W113. I would not go there.

2. For VIN 108 018 12 065696

PN A108 831 01 85 (HOSE) Note: 018 FROM CHASSIS 035637-057019; 019 FROM CHASSIS 057020 SEE GROUP 20

So we go to group 20, which is in engine, for 130980 engine. And we see:

PN A 108 831 04 94 Note: As of engine: 980 10/50,20/60 019028 980 12/52,22/62 043329 - you need to check your engine number, but I guess this is the part you need. Available at Mercedes, about $70.

This is the part I would put my money on (with all the appropriate disclaimers).

Please note that for W108 you may find Niemoeller more useful than SLS-HH shop. Although drawings are less friendly than in the SLS.

The straight connector appeared in the engine block: As of engine: 980 10/50,20/60 014829 980 12/52,22/62 030432 981 10/50,20/60 000341 981 12/52,22/62 002211 983 10/50,20/60 005302 983 12/52,22/62 008785 984 10/50,20/60 000339 984 12/52,22/62 000140,

where 10 is manual, 12 automatic. It looks some engines left factory with straight connector and old hose type... just my supposition.

If your engine number is different and does not fit for the part number I put in bold above (it is below 19028 for manual or 43329 for automatic), you will need the part numbers I listed in point 2 above.

Pawel66 · « **Reply #14 on:** July 28, 2023, 10:13:07 »

Quote from: K-Jet on July 24, 2023, 21:25:17

2. My car came with air conditioning. Does anyone have the part number (or specification) for the bolt that goes into the front of the head and holds the FI line bracket and the A/C bracket?

I cannot find this bolt specifically for use with Air Conditioner. I cannot find it on the parts list for conditioner.

The regular one is N 000961 012047 and you need crush sealing washer N 007603 012120.

Are you sure it screws to that place?

K-Jet · « **Reply #15 on:** July 30, 2023, 20:58:43 »

Pawel,

I can't express the level of my jealousy at your access to parts knowledge. Niemoller is almost local to me, but they offer no drawings whatsoever for engine parts. Also, last time I stopped by there they wouldn't sell me a 123 distributor in person; I had to order on line to pick up. So I have the hose on order elsewhere and it should arrive tomorrow or Wednesday.

Here's what I know.

1. For the central bolt (picture 1), the compressor bracket boss is 37mm deep, the FI line loom is 2.5mm, the washer is 2.5mm. The threaded hole is M12x1.5, 20mm deep. So M12x1.5X50 or x55 should work in this application

2. For the bolt just to the left (also picture 1), the bracket is 6mm thick, the washer is about 2mm thick, and the M10x1.5 hole is 10mm deep. So a M10x1.5x15 bolt should do the trick.

3. (picture 2) The threaded hole in the intake manifold was stripped, so new M10x1.5 threads were cut.

4. (picture 2) The strut from the block to the compressor attaches to the compressor with the same diameter / pitch bolt that holds the compressor to the bracket (9.3mm diameter). An M10 bolt has a 9.7mm diameter, so is it possible that this is an imperial thread, maybe ⅜ inch? If the compressor was US sourced, this would make sense.

5. (picture 3) The compressor type

6 (picture 4) The current state of play. Lily says hello.

Thank you all for your help. I plan to get on with the removal / installation in the next week or two.

Leester · « **Reply #16 on:** July 31, 2023, 00:38:51 »

Good job. And yes, if you use that compressor, it may well have SAE threads. Many of us are replacing that style compressor with a rotary style. Search Sanden and you will have lots of hits.

K-Jet · « **Reply #17 on:** July 31, 2023, 18:01:22 »

Lee and all,

The compressor holes have the same thread as the internal threading on one hole of the power steering pump, which this post (https://www.sl113.org/forums/index.php?topic=24210.msg173445#msg173445) (Thanks, Patel!!) indicates is ⅜ UNC x 3½ inches.

Now to find such a bolt here in metric-land....

Dru

Pawel66 · « **Reply #18 on:** July 31, 2023, 21:07:03 »

You will, no problem, just Google it. I found them in the Czech Republic, in Germany it should be easier.

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Author Topic: M130 engine assembly odds and ends (Read 2128 times)