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Posts Made By:
Schurkey
Forum:
Pontiac - Street
Yesterday, 09:10 PM
Replies:
168
Different cam? Chain? Car should be faster
Views:
10,301
Posted By
Schurkey
Depending on cam and compression ratio, that's so...
Depending on cam and compression ratio, that's so fantastically "good" that I would want to confirm that the gauge used is accurate.
Most (NOT all) compression testers use an Industrial...
Forum:
Pontiac - Street
Yesterday, 01:26 AM
Replies:
13
455 busted: 60919 cam, Rhodes Lifters, bent push rods
Views:
611
Posted By
Schurkey
I would do a leakdown test on AT LEAST #4 and any...
I would do a leakdown test on AT LEAST #4 and any other cylinder that isn't "broken", so you have a good cylinder to compare #4 to. At minimum, a compression test on #4 and a "good" cylinder.
...
Forum:
Pontiac - Street
Yesterday, 01:17 AM
Replies:
5
Help with vacuum hoses and QF carb
Views:
181
Posted By
Schurkey
ANY vehicle run primarily at part-throttle needs...
ANY vehicle run primarily at part-throttle needs PCV and vacuum advance. Venting crankcase fumes to atmosphere is just TOTALLY irresponsible.
Edelbrock sells a low-profile 90 degree elbow that's...
Forum:
Pontiac - Street
05-25-2024, 09:11 PM
Replies:
12
Air filter sucking in???
Views:
488
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
05-25-2024, 09:05 PM
Replies:
6
Compression Test
Views:
442
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
Flywheel ring gear replacement
Views:
231
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
Air filter sucking in???
Views:
488
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
Compression Test
Views:
442
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
Compression Test
Views:
442
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
Porting and valve seats
Views:
375
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
A body accelerator pedals
Views:
475
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
Buzzing from instrument cluster
Views:
341
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
Questions Re: Manual 4 Wheel Disc Brakes Conversion
Views:
355
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
Oil pump priming questions
Views:
814
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
Brake feel in steering wheel during light application
Views:
345
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
Pushrod lengths for changing lift
Views:
385
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
Brake feel in steering wheel during light application
Views:
345
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
REMOVING PLUG FROM EDELBROCK INTAKE
Views:
767
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
10 year old new oil????
Views:
1,265
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
Trans cooler recommendations
Views:
1,882
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
Changing Roller Rocker Arms: Setting Pre-Load on Pumped Up Hydraulic Roller Lifters
Views:
589
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
Changing Roller Rocker Arms: Setting Pre-Load on Pumped Up Hydraulic Roller Lifters
Views:
589
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
Changing Roller Rocker Arms: Setting Pre-Load on Pumped Up Hydraulic Roller Lifters
Views:
589
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
Fuel pump?
Views:
974
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
Read these plugs
Views:
616
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...
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