617 Sanden style A/C Compressor Mounting Kit For Sale + Installation Instructions - Page 5 - PeachParts Mercedes-Benz Forum

BillGrissom · #1 11-17-2013, 11:07 AM

I got you. I was able to get that thin strap on the high-pressure tube under a bolt on the Sanden. I doubt it adds much support, that was just to look finished. That bolt should be in the same place on DeliveryValve's compressor, since also a 6-bolt type. I don't notice any compressor vibration at all, relative to the engine. Not sure why an adjustable bracket makes a difference. Once you bolt it tight, the compressor has a solid 3-pt mount to the plate - 2 upper flange bolts and lower slotted brace bolted tight. I use the adjustment bolt just for tensioning, it isn't relied on once bolted down.

I also wonder about the reliability of my factory hoses. The high-pressure one has swollen outer rubber around the ferrule (from oil drips?), and even got a little torn in working it around the bracket. However, I think it has an inner plastic liner that actually holds the pressure (barrier hose). If I ever need to replace it, I might try cutting off the ferrules and recrimping new hose & ferrules. I have an AC crimper and parts, but I don't know what U.S. sizes might work with these Euro fittings. Wheeler Dealers (British) had an episode recently where they needed a hose for a Lamborghini and the hose shop guy was able to match it, but it took a little research. There is a lot of variety even within Europe.

ROLLGUY · #2 11-17-2013, 03:05 PM

Quote:

Originally Posted by BillGrissom

I got you. I was able to get that thin strap on the high-pressure tube under a bolt on the Sanden. I doubt it adds much support, that was just to look finished. That bolt should be in the same place on DeliveryValve's compressor, since also a 6-bolt type. I don't notice any compressor vibration at all, relative to the engine. Not sure why an adjustable bracket makes a difference. Once you bolt it tight, the compressor has a solid 3-pt mount to the plate - 2 upper flange bolts and lower slotted brace bolted tight. I use the adjustment bolt just for tensioning, it isn't relied on once bolted down.

I also wonder about the reliability of my factory hoses. The high-pressure one has swollen outer rubber around the ferrule (from oil drips?), and even got a little torn in working it around the bracket. However, I think it has an inner plastic liner that actually holds the pressure (barrier hose). If I ever need to replace it, I might try cutting off the ferrules and recrimping new hose & ferrules. I have an AC crimper and parts, but I don't know what U.S. sizes might work with these Euro fittings. Wheeler Dealers (British) had an episode recently where they needed a hose for a Lamborghini and the hose shop guy was able to match it, but it took a little research. There is a lot of variety even within Europe.

You may be able to find metric hose a sleeves, but the availability (or lack thereof) and cost was not worth the expense or hassle for me. The original rubber hose is not what I would consider "barrier" hose. The problem with using 28+ year old hose (made for use with R12), is that it is OLD! Most people that retrofit to a Sanden, use 134a. Some stay with R12, and that is fine as long as the oil is changed in the compressor (all are filled with oil compatible with 134a). If you are planning to use the factory hose assemblies and want to replace the rubber eventually, I would suggest getting a spare assembly, and welding on SAE hose barbs (#8, #10 etc) and using the appropriate barrier hose. It will then be ready to install when (not if) the 28+ year old rubber gives up. Again, I commend you for going this way, and wish you well. This may still be a viable option for others. BTW, I may even be able to acquire a compressor with the correct head (QD) already installed (have not checked).

BillGrissom · #3 11-18-2013, 11:45 AM

Quote:

Originally Posted by ROLLGUY

I may even be able to acquire a compressor with the correct head (QD) already installed (have not checked).

Also look at the Q head (post #109 above) since discharge & suction are on the correct sides for factory tubes without rotating the compressor 90 deg (as DeliveryValve & I did). However, the ports are higher, so would need to bend the factory discharge hose down even more to clear the adjuster seat on your bracket.

I do have an extra factory hose to play with. It came on my used engine, but they broke off the discharge tube on the passenger side when pulling the engine at PickNPull. If I change to a modern parallel-flow condenser wouldn't matter since need to change somewhere to a U.S. tube w/ O-ring fittings.

I mis-stated. My adjuster has only ~1/3 left, so even at max my suction tube probably wouldn't hit the oil cooler tube. Also good I used the shortest V-belt I could get on the pulleys.

Re oils, from my recent reading PAO 68 seems like the best oil to use for any refrigerant. Hella makes it, and usually comes w/ uV dye. Unlike PAG, it doesn't absorb moisture. It even absorbs less than mineral oil. It also tends to stay put in the compressor, so doesn't coat the condenser and evaporator as much (lowering heat transfer). You can find on ebay, or buy from Duracool as their "AC Chill" which I did since buying more cans of their HC refrigerant, plus their price was a bit cheaper than ebay. I haven't read that it affects rubber hoses, but shouldn't since you can add it to existing mineral oil or PAG. It is also supposed to improve the efficiency of the compressor. It does cost a bit, but I only needed 6 oz for my Sanden compressor, so can do ~5 retrofits with the bottle.

nazonad · #4 07-16-2017, 11:20 AM

please how can i get this kit for my w123 300d already i have harisson r4 and i want to change it with sanden

BillGrissom · #5 07-17-2017, 07:10 PM

Nazonad,
There is a more recent thread on Rollguy's Sanden brackets. Search for it. You can also PM him directly.

nazonad · #6 03-19-2018, 01:51 PM

Hi I really like what you did with this sanden. Old can I take one for my w123 300d. Am living in Algeria. Can you send me this system how much and how can I receive it

ROLLGUY · #7 03-19-2018, 04:11 PM

Quote:

Originally Posted by nazonad

Hi I really like what you did with this sanden. Old can I take one for my w123 300d. Am living in Algeria. Can you send me this system how much and how can I receive it

I don't think I am able to deal with shipping and payment to/from Algeria, sorry.