Hello my fellow Datsun heads. Wolfmandu here. I have a 1978 620 pickup that I am basically doing all the work on myself. My son and I are about to move north of San Francisco in about a month. We'll be doing a 9-hour drive from L.A. to get there. Our convoy will consist of my son in his old Volvo wagon (with Roscoe the Rotty in the back) and me in my Lil Hustler 620 and hauling my trailer (which is made up of a similar year Datsun 620 truck bed and was built by a great trailer company years ago). I want to be sure I've taken the best pre-cautions I can and have dealt or deal with the obvious things that could go wrong on the longest trip I'll have taken her on since I bought her 6-months ago.
I have installed a new alternator, fuel-pump, radiator, battery and clutch. My main problem recently has been the cooling system which was solved by installing the new radiator but only after I pulled the new thermostat I put in. My understanding is that this is only a quick-fix and I should figure out why the thermostat isn't opening pretty soon. If peoples' experiences with pulling their 620 thermostats are positive (or negative) please weigh in. I did flush the engine (which has a low 45,000 miles but had been sitting since 1994) about 15 times before I installed the radiator but I did not buy any flush product and let it sit in the engine for a day or two and then flush it. Should I do this? Could that be the thermo problem?
As I said before, any and all advice is quite welcome on what I should check before my long trip. I don't want my son and our dog stuck on the side of the road with me, in the crazy recent heat, surrounded by our lives loaded into the Volvo and my Datsun 620 (and trailer). I have a month to try to avoid that outcome.
I forgot. The most recent fix was the oil pressure plug that screws into the block and has a wire that connects to the gauge. That went bad and dumped a full-engine's oil all over the freeway and the scrap-yard I made it into. Luckily I towed it home and fixed it with no harm coming to the engine.
Before I go I just want to say how great I think this site is. Everyone helping each-other out and expecting nothing in return is a great thing to witness and experience. My Datsun will be with me the rest of my days and I'm learning how to really fix a vehicle's problems WITH her. I don't have a lot of mechanical experience and all your help so far has been priceless. Thanks again and please weigh in on your advice for getting her ship-shape to set sail for the "Redwoods' of northern California.
all the best,
- Charlie69 likes this