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#1
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Harbor Frieght tools has diesel compression tester on sale for $16
I could not resist buying one of these yesterday. I opened and it has a release valve for the pressure on the gauge. Nice set. Don't know about how much of a quality set it is, but WOW! It was only $16 bucks this week on sale at Harbor Freight tools. Picked up mine locally so no shipping!
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1982 300SD Light Blue 2002 Honda Accord SE 1974 Toro Wheel Horse Tractor 2000 Toyota Tundra Pickup |
#2
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What is the stock number?
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1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair |
#3
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Item # 93644. Catalog also has a gasser one for $6 - Item 92697.
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1983 300SD 307k miles 1993 Ford Escort Wagon 215k miles 1995 Isuzu P'up 214k miles |
#4
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1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination |
#5
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How do you use one of those, do you attach it to the glow-plug hole then crank the engine/look at the gauge? (cold and warm engine)?
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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) |
#6
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Depending on the engine you use either the glowplug hole or injector hole. Depending which adapter will work. My car uses the glowplug hold.
You test warm. Crank 3 or 4 times over and take reading. Without starting of course. Danny
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1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination |
#7
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$16, wow, thats cheap, I payed something like $23 just for the MB adaptor with the 90 degree swivel.
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
#8
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this one is everything
The one I just bought from them comes with everything. I think mine has both the glow plug adapeter and I know it has the injector adapter. Nice set for $16.
WHen I change out my injectors soon I will take some readings.
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1982 300SD Light Blue 2002 Honda Accord SE 1974 Toro Wheel Horse Tractor 2000 Toyota Tundra Pickup |
#9
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Quote:
A few more questions. What is the easiest and cleanest way of keeping the engine from starting? Remove all glow plus? As for the engine being warm... I dought I can test all five cylinders at the same warm temperature. Isn't a cold test more uniform? |
#10
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Since you are going to run a compression test on all cylinders, go ahead and remove all the glow plugs before you start. The car can not start with the glow plugs out because of lack of compression. However, you should hold the stop lever to the extent possible, because you don't want the cylinder you are testing to ignite.
This tends to make the task a two-person job if you have someone turn the key to engage the starter. Of course, you can prevent any chance of starting by also removing the metal injector pump to injector lines. Ken300D
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-------------------------- 1982 300D at 351K miles 1984 300SD at 217K miles 1987 300D at 370K miles |
#11
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Are these testers reliable? Do they give the good unmbers?
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Andrew '04 Jetta TDI Wagon '82 300TD ~ Winnie ~ Sold '77 300D ~ Sold
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#12
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I just purchased this set today locally - instructions do no include a GP option for my car (1978 300D). It does list an adapter for the injector hole for all "early models" mercedes. My question - what is the thread in the glow plug holes on my engine (OM617)?
Ryan I have the 'large' hook style GP's - I'm thinking it is 18 X 1.5mm??
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RG Newell 1984 300D 1972 250 1986 560SL 1991 300CE Last edited by rgnprof; 03-29-2006 at 04:03 PM. |
#13
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I think you right, 18mm...... and i believe the 'later" GPs are 12mm
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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