N14 coolant filter shut off - TheDieselGarage.com
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post #1 of 5 (permalink) Old 08-03-2010, 02:29 AM Thread Starter
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N14 coolant filter shut off

I've got an n14 and can't get the coolant filter shut off to turn. I had a 1/2" breaker bar on it, wd40'd it but still won't turn. I didn't lean on it too hard for fear of breaking it and/or the filter housing.

Anyone got some tricks to try? Does the oil/coolant filter housing have to come off? How much coolant would run out if I didn't shut it off while changing it? TIA.

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post #2 of 5 (permalink) Old 08-03-2010, 02:47 AM
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they all stick at the shut off, just pre charge the new filter and stick it on. if ya do it fast you wont lose a qt or so.
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post #3 of 5 (permalink) Old 08-03-2010, 05:04 AM Thread Starter
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Ok thanks. Just got the truck a month ago and didn't want to fubar anything.

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post #4 of 5 (permalink) Old 08-03-2010, 06:17 PM
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Cheap to replace if you have a big pan to catch all the A/F!! Use Nevrsieze instead of grease on the orings, and turn it every month, regardless
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post #5 of 5 (permalink) Old 08-05-2010, 12:39 AM
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They can be a "B" to get out, I have a 3/8 inch lag screw that I use, I drill it to i/4 inch, after you have drained the coolant then I have an adapter, that goes on my slide hammer.you want to drill as far as you can, use the new valve as a depth guide, polish the housing, with a small flapper wheel. I have one of those welded onto a rod to get access. I use gear oil, on the "O" rings and as ynot said never seize on the outer section. Never acid was the engine, and it will be fine, turning it once a week when you grease the truck, works for me.
Easier way is to get a shop vacuum and have someone relieve the preasure. You do not hold it on solid but just enough to control the leakage.
Just a thought!

1988 ford van fresh overhaul, 1991 nissan pick-up 1993 Caprice 2000 GMC S10 Blaser 2007 nbs 3500 GMC 4x4 crew-cab long box 17 inch single wheels Duramax Alison. BW turnover Ball. Furakawa FL35 loader. Retired, HD mechanic, worked on engines all my life. Fabricator welder. electrician. in the process of finishing my new shop. Live in Rock Creek B.C. Wife has a fruit stand.
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