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89VG30

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  • Your Pathfinder Info
    I am rebuilding the engine which has 326,000 miles on it and so far I have purchased Thorley headers, cam set (262 duration .430 lift), Ishino gasket set, and will be getting new pistons, oil pump, water pump, lifters and misc. other stuff.
  • Mechanical Skill Level
    Standalone Tool Chest Mechanic
  • Your Age
    45+
  • What do you consider yourself?
    Weekend Warrior
  • Model
    SE
  • Year
    1989

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  1. When my path was new my needle ran between 1/4-1/3, now it runs like yours. I have a Haynes manual that recommends the 155 t-stat. Don't know about the taurus mod but will check into it. Thanks for your input and everyone else's!
  2. My latest t-stat is 76.5C,170F dealer, did have O'reilly fan clutch but now dealer
  3. Most definitly getting rebuilt heads. and I may have to live with a 170 t-stat.
  4. I'm fairly sure it's a cracked head because I had gotten into stop and go traffic for about 8 miles, (about 1 hour) and had finally noticed the temp gauge pegged, pulled into a car wash with the engine making terribly awful sounds and waited about another hour to put water in it. This was with a new fan clutch from O'reilly's (Kool Clutch). I noticed later with the rad full of water, the temp gauge indicating overheating, that the fan was only doing about 15 rpm and I showed the guy at the parts store that I could stop the fan with my finger and spin the fan in the opposite direction it should have been going. Shouldn't the fan clutch be engaged with water that hot flowing thru the rad and the air temp so high? At the present time I'm collecting parts to rebuild the engine.
  5. The first fan clutch I replaced in my '89 was at about 70K miles and I purchased one that had a lifetime warranty so I got a free one at about 140K, 210K, and 280K, but the one at 280K had a higher temp setting than previous clutches and combined with the higher temp thermostat (170 farenheit 76.5 celsius) that nissan now specifies for my '89, I have at least one cracked head, (water droplets and chocolate milk looking oil in the oil filler cap). My vehicle came with a 155 degree farenheit (68 celsius) thermostat and mating fan clutch and had run perfect with that combo. I don't think it would do any good to have a 155 t-stat with a fan clutch that doesn't start pulling air thru the radiator till the air temp hits 190, so what I would like to do is find a good 155 degree t-stat and modify the copper thermal coil on a new fan clutch to match. Any help in locating a 155 t-stat for my '89VG30i would be greatly appreciated. Thanks, 89VG30
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