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Old August 13th, 2017, 17:45   #16
Join Date: May 2017
Location: Hoonah, AK

I made sure. It goes up to 1000 psi. I've seen the reading should be around 500. Is that right?
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Old August 13th, 2017, 18:15   #17
Join Date: Jan 2015
Location: Middleton, ID USA
Fuel Economy: 45 mpg with auto jetta, 50+ with the golf

run the car till you have it up to operating temperature, then unplug the injection pump and do one cylinder at a time and write down each number. If you have an issue with a glowplug the process will take you longer. Its also a good idea to blow out around each glow plug before removal so you dont get crud into the cylinders. Good luck.
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Old August 13th, 2017, 18:27   #18
Join Date: May 2017
Location: Hoonah, AK

Is it going to make a difference if you do it when cold versus running temp?
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Old August 13th, 2017, 18:36   #19
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It will but for what your looking for , you want the readings to be consistent, for example all reading about 400 +- the tolerance, not 2 reading 300 and the other two reading 400.
2001 golf auto to 5 speed manual swap,G60/VR6 clutch setup,coolant migration mod.
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Old August 14th, 2017, 04:45   #20
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Join Date: Apr 2010
Location: Knoxville, TN
Fuel Economy: At least 2x that of my TJ

It should be noted that a battery charger needs to be connected during the compression test and all glow plugs removed

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Old August 19th, 2017, 20:17   #21
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Join Date: Sep 2005
Location: Ontario, Canada

You bent number 2 and 3 rods for sure.
2006 Jetta TDI - Malone Tuning stage 4, G60/VR6, Vogtland 55mm/Koni Sports, GTB1749V, EGR delete, Titan/Frank's cam

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Old Today, 07:18   #22
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Join Date: Oct 1999
Location: Conkud, New Hampshiyuh, USA
Fuel Economy: pretty freakin' good.

Not if there is a timing problem instead of a compression problem. Did anyone mention that it is a good idea to remove the wire to the fuel cutoff solenoid when doing a compression test?


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Old Today, 08:33   #23
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Join Date: Dec 2000
Location: its not the base, its the additives!!

Reminds me of the early rabbits and pickups.. Around 60 hp.. and would do 75 mph down hill.. but then it would go into runaway.. as it sucked oil fumes out of the crankcase, into the intake... Never hydrolocked, just took off down the road, 75 mph... and a bit of a smoke trail. Vw came out with a modification for the breather that helped somewhat eliminate the problem. Gosh, those were the days... could not hear yourself think for the noise... Had to turn off the a/c compressor and start gaining speed the day before, so you could plan to pass someone. And the radio.. who knows, you could not hear it anyway.

Anyway.. you may or may not have hyrolocked and bent your rods. But if its down on power, hard to start, smokes till warmed up... its not looking good.
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