JDSeller and projects

Can't help you on the Ford diesel, except to say that the 7.3 is highly desired and has good resale value so I suggest you make an effort to get it running good for resale.

On the old 69 F150, were you using Quaker State oil? We had a 66 Ford car that clogged up with crud. That model had a pollution control valve(PCV) between the carburator and the intake manifold and it got choked up with the crud. Mechanic blamed the oil, said Quaker State had more parrafin in it than others. Solution: Change brands of oil, take the valve out and clean it good. No more problems. For those who may not know, the PCV allowed the fumes from the crankcase to be sucked into the engine and burned in the cylinders.

KEH

KEH: You nailed it. LOL Dad was a loyal Quaker State oil man. I was too for a number of years until I locked up a JD 5020 with about 75 hours on a complete overhaul. This was back when the oil was in the tin/paper cans. I still had the empty cans from where I had changed the oil at 50 hours. Each one of them had a 1/2 inch of wax/stuff in the bottom of half the cans. I called the parts store where I had bought the oil. They sent out a Quaker State company man. He would do nothing about the damage to the motor and just offered to replace the case of oil. LOL A case then was 24 quarts.

I was able to drop the pan and polish the crank up and replace all the bearings. It must have worked. I used the tractor for 8-10 more years and the fellow I sold it too still uses it. That overhaul would have been in 1980-81.

I switched to Kendal Racing oil after that. A local friend that pulled a hopped up super stock told me about it. I used Kendal until JD came out with the 15w40 Plus 50 oil. I have used it every since.

I never have used a pint of Quaker State oil since then.

That 1973 Pickup of my Dad's had the valve covers so sludged up that you could have driven it with them off and it would not have thrown any more oil.

We used to buy the TSC oil in the drums untill we found that in one drum and that was the last TSC oil we bought. Probably just a bad batch and inspecter did not catch it.

I worked at a parts yard some in my teens and engines that had had Quaker State or Gulf oil run in them were always cruded up terrible.I've seen the whole area under the valve cover packed solid.

The only problem I ever had with Quaker State oil was getting some of that bad batch that turned to grease below freezing back in the early 80s. Locked up the engine in my brother's 69' El Camino one -5 degree morning. While we were trying to find a replacement engine, Dad read an article in the paper about the problems with this batch of oil. Dad contacted Quaker State who sent out an insurance adjuster. He took a sample of the oil and made a phone call, then wrote a check for a new target engine from Chevrolet. I've used Quaker State all these years (mainly cause it's cheap at Walmart) and 3 engines are over 200,000 miles and 2 are at 150,000 miles. I had the intake manifolds of 2 of the 200,000 mile engines to replace the gaskets due to gasket failures, and there was no sludging present just the frothy crud from anti-freeze having mixed with the oil.

PCV = Positive Crankcase Ventilation

penzoil does that also,I had an old ford with the 300 6 in it the previous owner was a penzoil fan,but when I removed the valve cover to replace the gasket and saw all of the goo inside that engine I decided no more of that junk

I had problems years ago with it. Been so long forget just what. But haven't used the brand since.

Mark