Search found 153 matches

by Schurkey
Sun Aug 01, 2021 4:24 pm
Forum: Technical Talk
Topic: Head Gasket Replacement
Replies: 60
Views: 21100

Re: Head Gasket Replacement

With new lifters and using the old camshaft, should I apply assembly lube on the top of the camshaft as well? Yes. I tried to remove the gunk that was on it, Is this camshaft fit for re-use? Lobes not worn? If the taper is gone on any one of the sixteen lobes, it's junk. With new lifters, do I need...
by Schurkey
Tue Jul 27, 2021 2:56 pm
Forum: Technical Talk
Topic: Head Gasket Replacement
Replies: 60
Views: 21100

Re: Head Gasket Replacement

Milling the head to gain back compression ratio is only 1/2 the solution. A. The real compression ratio was lower than what Oldsmobile advertised to begin with. B. Milling the head does nothing to reduce the piston-to-head distance screwed-up by the double-thick head gasket. C. Excessive piston-to-h...
by Schurkey
Mon Jul 26, 2021 6:33 pm
Forum: Technical Talk
Topic: Head Gasket Replacement
Replies: 60
Views: 21100

Re: Head Gasket Replacement

Valve seats work-harden in use. An engine starts it's life on leaded gasoline. The lead helps preserve the seats until they work-harden. The engine can then be switched to unleaded gasoline and probably not have a problem with valve recession/seat wear. Then someone grinds the seats, removing the wo...
by Schurkey
Thu Jul 15, 2021 4:51 pm
Forum: Technical Talk
Topic: Fan Clutch
Replies: 48
Views: 34025

Re: Fan Clutch

So upping the temperature for the thermostat didn’t do much, I pushed it quite hard on an incline (84 degrees today) and it went up to 233 degrees. Once I started going downhill, the temperature immediately started to drop a few seconds in the descent (dropped 10 degrees within 30 seconds and 20 in...
by Schurkey
Tue Jun 29, 2021 8:38 pm
Forum: Technical Talk
Topic: Fan Clutch
Replies: 48
Views: 34025

Re: Fan Clutch

I just opened the vent on the radiator cap and coolant and air went into the overflow tank. So does that mean that there’s still air in the system? The cap is rated at 16 psi. Some possibilities: 1. Residual air from the recent cooling system work. 2. Combustion chamber pressure leaking from the cy...
by Schurkey
Mon Apr 05, 2021 12:19 pm
Forum: Technical Talk
Topic: Fan Clutch
Replies: 48
Views: 34025

Re: Fan Clutch

Here's an explanation with diagrams: https://www.coolcatcorp.com/Radiator%20Caps/Radiatorcaps.html Wow! That was entirely NOT what I was expecting to see. I learn something every day. Went on the NAPA and O'Reillys web sites looking for photos of what I was trying to explain; but I found no suitabl...
by Schurkey
Sun Apr 04, 2021 10:54 am
Forum: Technical Talk
Topic: Fan Clutch
Replies: 48
Views: 34025

Re: Fan Clutch

In California, cars that are built from 1975+ must perform a smog check, so in this case I’m fine. The car doesn’t have an air pump, so that’s not much of a problem. Someone installed a reservoir tank before I bought the car, but I replaced the cap with a non-vented one. I didn’t know that you were...
by Schurkey
Thu Mar 18, 2021 8:37 pm
Forum: Technical Talk
Topic: l Bearings
Replies: 15
Views: 14627

Re: l Bearings

he couldn't pass it for inspection because there was too much play in the front wheels. In all candor there was way too much play in the fronts. If you yank back and forth on the front wheels, both, there's just a hint of play - it ain't much but you can feel it and hear it. HOW MUCH "play&quo...
by Schurkey
Thu Mar 18, 2021 6:46 pm
Forum: Technical Talk
Topic: 1st Generation Toronado Steering Box
Replies: 16
Views: 16096

Re: 1st Generation Toronado Steering Box

1. "New" parts--alternators, starters, etc. are typically Communist Chinese junk. Be very careful when buying "new". 2. There's a bunch of seals, and two adjustments on the steering gear. The adjustment that most folks screw with is the one that's performed AFTER the other one, w...
by Schurkey
Thu Mar 18, 2021 6:30 pm
Forum: Technical Talk
Topic: Fan Clutch
Replies: 48
Views: 34025

Re: Fan Clutch

To my knowledge, NO OEM ever used a non-thermal fan clutch. The non-thermal clutches are strictly an aftermarket "cheapskate" option; for folks who won't spend the money to fix it "right". There's a thousand reasons an engine might overheat at idle. Lack of airflow through the ra...

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