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#1
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Nut sizes on oil cooler
My apologies for not looking this up sooner, but I am internetless at the house so I can't check EPC for this.
What is the nut size for the bolt on the oil cooler hose? My friend has flare nut wrenches from 5mm to some huge size. He was going to mail me a wrench that I could borrow for my cooler line job, but I don't know the size of the bolts. So what are the nut sizes?
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-Typos courtesy of my mobile phone. |
#2
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All four should be 27mm. In a pinch, 1-1/16" SAE will work as well.
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'82 240D 224K miles manual transmission mods: wooden 4by4 bumper, EGR delete and older EX manifold without EGR port, glass pack muffler (cheapest replacement muffler), rebuilt bosch injectors with Monark nozzles working on: aux electric fuel pump, coolant/fuel heat exchanger/filter head, afterglow, low oil pressure buzzer/LED |
#3
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Thanks a ton!
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-Typos courtesy of my mobile phone. |
#4
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I stripped about 3 of threads on one of my Oil Cooler Nipples when I remove the Oil Cooler Line Nuts.
I would read up on some of the ways to decrease the chances if it happening. If it does happen there is a repair for that in the DIY section. When I did Mine I had a 1-1/16 Combination Wrench and also a 1-1/16 Crows Foot (this fit better on the bottom one as it allowed mor positions).
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84 300D, 82 Volvo 244Gl Diesel |
#5
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The lower oil filter housing fitting is best tackled with a 16 point flare nut wrench. Or a box-end wrench modified to line wrench characteristics.
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#6
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On the hoses on the Oil Filter Housing you may need a wrench to keep the Fittings that screw into the Oil Filter Housing from turning. I do not remembe what size it was but I bought a cheap wrench so that I could thin the end of it so it fit between the Hose Nut and the Oil Fileter housing.
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84 300D, 82 Volvo 244Gl Diesel |
#7
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I have a 1 1/16" Blue Point Box wrench I made into a flair nut wrench. I cut the wrench in 1/2 so it`s about 6" long or so.
Use a 7/8 open end as a back up on the oil cooler, so you don`t twist and break off the threaded part of the cooler when cranking down with the 1 1/16" wrench. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
#8
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if they are clean and dry dont think about turning them. soak them for weeks in PB blaster. every day several times aday soak and resoak them...
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#9
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PB blaster is weak. I would use liquid wrench, its second only to Aero-kroil.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#10
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I use aerokroil, but it's not easy to find. pb blaster is. is LW better? cool, I didn't know that. WD40 is total water... useless. this I know.
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#11
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Have you tried Free-all? It's suppose to be one of the best. In my experience, it is definitely better than Liquid Wrench and PB Blaster. The oil cooler has steel nut on aluminum, not a good combo. I had to work the nut back and forth 2 to 3 degrees at a time with the 2 wrenches, took about half an hour of that to get the nut off. If I didn't do that, I have no doubt it would have stripped the oil cooler's aluminum threads.
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85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#12
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Thanks for the tips guys. I think I might end up getting the 1 -1/16 wrench too.
I've been researching this for ages since I knew the job had to be done. I would prefer to not strip any threads off the cooler. I know judging by the other problems I've had with the car that the hoses will not come off without a fight. I've been soaking them with PB for awhile, but I'll start using liquid wrench instead. I think I'm going to cut the hoses and remove the entire cooler with the fittings still attached so I can attack the lines standing up. I'm anticipating the worst however so I called the farmer down the street to see if he could help me if I strip them. I don't need the car for the entire month so I am going to take my time.
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-Typos courtesy of my mobile phone. |
#13
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Quote:
Reason: If you need more torque than a crescent wrench can provide, you'll likely tear the fitting out of the cooler unless you're using a backup wrench on the fitting itself. |
#14
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Quote:
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#15
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Quote:
Your solution with a flare nut wrench or a 12 point box (16 point??) wrench is much preferred. |
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