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Search took 0.09 seconds. Search: Posts Made By: Schurkey
Forum: Pontiac - Street Yesterday, 09:11 PM
Replies: 12
Views: 357
Posted By Schurkey
Vacuum under the throttle plates is not the...

Vacuum under the throttle plates is not the issue.

Vacuum above the throttle plates will not be lessened by opening the secondaries. Would likely make it worse.
Forum: Pontiac - Street Yesterday, 09:05 PM
Replies: 6
Views: 349
Posted By Schurkey
How old are they? How many miles? How do you...

How old are they? How many miles? How do you drive? Is there excessive blow-by? Does the engine have oil-consumption problems? Is there sufficient baffling of the PCV valve?

You're concerned...
Forum: Pontiac - Street 05-24-2024, 11:51 PM
Replies: 4
Views: 191
Posted By Schurkey
No such thing as MAPP gas any more. Hasn't been...

No such thing as MAPP gas any more. Hasn't been made in a dozen years or so. I have about half of a bottle left. Saving it for a special occasion.

NOW, they're selling "MAP-Pro" which is...
Forum: Pontiac - Street 05-24-2024, 11:34 PM
Replies: 12
Views: 357
Posted By Schurkey
The worst thing that folks can do to an...

The worst thing that folks can do to an oiled-gauze air filter is to clean it too often.
The second-worst thing folks can do is to over-oil the filter, especially on a vehicle using a MAF sensor. ...
Forum: Pontiac - Street 05-24-2024, 04:42 AM
Replies: 6
Views: 349
Posted By Schurkey
The fitting in the intake manifold should be...

The fitting in the intake manifold should be extra-long, with orifices allowing the fumes into both the upper runner, and the lower runner.

Maybe you have the wrong fitting. Pull it out for...
Forum: Pontiac - Street 05-24-2024, 12:03 AM
Replies: 6
Views: 349
Posted By Schurkey
How do you have the PCV system routed? What...

How do you have the PCV system routed? What intake manifold? What engine?

Most OEM systems attempt to divide PCV fumes as evenly as practical among all the cylinders, typically by splitting the...
Forum: Pontiac - Street 05-23-2024, 08:47 PM
Replies: 8
Views: 269
Posted By Schurkey
Decent drill motor, wire brush. Remove all loose...

Decent drill motor, wire brush. Remove all loose carbon and rust. Will make the valve seats easier to see.

No sense putting ten cents of machine work into those heads until after you've played...
Forum: Pontiac - Street 05-22-2024, 05:32 PM
Replies: 7
Views: 455
Posted By Schurkey
I don't know about Pontiac-specific gas...

I don't know about Pontiac-specific gas pedal/kickdown switches.

There are at least two designs of '68--'72 A-body kickdown switches, and the matching gas pedal/mounting. I have the "wrong"...
Forum: Pontiac - Street 05-19-2024, 10:14 PM
Replies: 7
Views: 324
Posted By Schurkey
Pop the speedo cable out of the speedo, see if...

Pop the speedo cable out of the speedo, see if the noise goes away or at least changes.
Forum: Pontiac - Street 05-16-2024, 12:55 PM
Replies: 16
Views: 330
Posted By Schurkey
Virtually every car with (front) disc brakes, or...

Virtually every car with (front) disc brakes, or 4-wheel discs has a power booster.

Disc brakes have very little self-energizing action, and what little they have reduces as the pads wear.
...
Forum: Pontiac - Street 05-14-2024, 01:13 PM
Replies: 32
Views: 765
Posted By Schurkey
You are WAY over-thinking this. "Priming"...

You are WAY over-thinking this.

"Priming" involves removing air from the oiling system--oil pump, filter, the larger oil galleries. It is NOT intended to spray oil over the fenders from the...
Forum: Pontiac - Street 05-14-2024, 02:11 AM
Replies: 8
Views: 331
Posted By Schurkey
No, it does not make sense. Describe what...

No, it does not make sense.

Describe what the steering wheel does.


What about thickness variation?
Forum: Pontiac - Street 05-13-2024, 11:21 PM
Replies: 10
Views: 367
Posted By Schurkey
Any engine with non-adjustable rockers does not...

Any engine with non-adjustable rockers does not change geometry with pushrod length. Pushrod length changes affect lifter plunger preload only.

Pontiac with "bottleneck" studs and nuts torqued to...
Forum: Pontiac - Street 05-13-2024, 11:02 PM
Replies: 8
Views: 331
Posted By Schurkey
WHAT DO YOU MEAN "feeling braking in my steering...

WHAT DO YOU MEAN "feeling braking in my steering wheel"?

What does the steering wheel DO? Shake? If so, most-likely cause is warped rotor(s), but pull the handle on the park brake, gradually...
Forum: Pontiac - Street 05-12-2024, 02:01 AM
Replies: 17
Views: 735
Posted By Schurkey
Acetylene or Propane plus Oxygen is much hotter,...

Acetylene or Propane plus Oxygen is much hotter, works WAY better.

As said--heat the plug, not the casting.


Tried that once. Enormously too much oil along with the refrigerant. Messy as...
Forum: Pontiac - Street 05-12-2024, 01:50 AM
Replies: 36
Views: 1,227
Posted By Schurkey
Dinosaurs all died 65 million years ago. Ten...

Dinosaurs all died 65 million years ago. Ten years on processed oil doesn't seem that much by comparison.
Forum: Pontiac - Street 05-11-2024, 02:23 PM
Replies: 32
Views: 1,860
Posted By Schurkey
Not what I'd expect. I'm not in a position to...

Not what I'd expect. I'm not in a position to challenge B&M, but I'd have expected 170--200 in the pan, not in the cooler return-tube. Many modern cars have transmission temperature sensors on the...
Forum: Pontiac - Street 05-06-2024, 01:24 AM
Replies: 10
Views: 580
Posted By Schurkey
.031625 X 1.5 = .0474 But with .120 plunger...

.031625 X 1.5 = .0474

But with .120 plunger travel, it won't matter.
Forum: Pontiac - Street 05-05-2024, 03:17 PM
Replies: 10
Views: 580
Posted By Schurkey
I don't think it's anywhere near as critical as...

I don't think it's anywhere near as critical as some folks have made it out to be.

How much lifter plunger travel do your lifters have? I've seen OEM lifters with more than a quarter-inch of...
Forum: Pontiac - Street 05-05-2024, 04:01 AM
Replies: 10
Views: 580
Posted By Schurkey
That's .031 at the adjuster nut. Not .031 at the...

That's .031 at the adjuster nut. Not .031 at the lifter plunger where it matters. You're not taking rocker ratio into account. The lifter plunger is being depressed more than .031.


Yes, IF...
Forum: Pontiac - Street 05-05-2024, 01:57 AM
Replies: 20
Views: 941
Posted By Schurkey
3 psi is probably insufficient. The gaskets...

3 psi is probably insufficient.

The gaskets aren't soggy because the fuel level is too low.

What you have going for you is that there's three needles 'n' seats instead of one. More-or-less...
Forum: Pontiac - Street 05-02-2024, 04:24 PM
Replies: 8
Views: 597
Posted By Schurkey
1. It would help enormously if you'd crop and...

1. It would help enormously if you'd crop and resize pictures so the detail that mattered was more prominent.

2. Given the leaded fuel, and the additives, I don't think anyone can say for sure...
Forum: Pontiac - Street 05-02-2024, 04:12 PM
Replies: 20
Views: 941
Posted By Schurkey
I'd expect that would lower volume, but not...

I'd expect that would lower volume, but not pressure. May be so slight that you'd never notice.

Pressure is set via the internal spring.
Forum: Pontiac - Street 04-30-2024, 07:01 PM
Replies: 10
Views: 626
Posted By Schurkey
THANK YOU. Not many folks recognize the...

THANK YOU. Not many folks recognize the difference between Torque/Angle and TTY.

I paint a stripe down the shank of torque/angle bolts. When I remove them later, if the paint stripe is twisted,...
Forum: Pontiac - Street 04-24-2024, 06:52 PM
Replies: 62
Views: 2,870
Posted By Schurkey
Oldsmobile restricted their heater supply, so did...

Oldsmobile restricted their heater supply, so did Chevrolet.

No promises on Buick and Cadillac, but my guess is that all GM divisions restricted the heater core flow somehow. Either a small hole...
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