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I bought a new Laso water pump, p/n 75200101(http://www.laso.de/search/?mainsearch=75200101). It's the newer version that uses the belt guard but doesn't have the water outlet for the turbo cars. The distance from the snap ring to thermostat sealing surface is 5 mm on this pump. I'm I correct that this pump uses the early thermostat? This car is starting to drive me crazy.
The 104mm blocks (89 2.7 and all 3 factory liter motors) use a bigger impeller. To the OP, I've never seen a new style pump, with belt rail, that uses the old style thermostat -- and wouldn't think Laso would to that? Are you sure you are measuring correctly?
I definitely measured it correctly. I'm frustrated with this whole merry go round thermostat BS. I just want to be 100 percent certain that the correct thermostat is going in before I wear out the threads for the belly pan bolts. I wish I knew the difference between early and late thermostats. I have both early and late Wahler thermostats coming later this week from a different vendor. Hopefully I'll get an answer or maybe having both early and late thermostats in front of me I can figure it out.
01-06-2018, 06:02 PM
Early or late thermostat, which to use?
