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Forum: Pontiac - Street Today, 01:06 PM
Replies: 9
Views: 674
Posted By Schurkey
Could be.

Could be.
Forum: Pontiac - Street Today, 09:58 AM
Replies: 9
Views: 674
Posted By Schurkey
Holdoff valve, safety switch, and proportioning...

Holdoff valve, safety switch, and proportioning valve moved into the Combination valve, which also became the distribution block.
Forum: Pontiac - Street 04-16-2024, 03:46 PM
Replies: 26
Views: 1,038
Posted By Schurkey
Photo shows "Made in USA". Good score. Is there...

Photo shows "Made in USA". Good score. Is there an anti-drainback valve, and if so, what color is it--black or orange? (or something else.)

Big discussion on another forum about...
Forum: Pontiac - Street 04-12-2024, 12:34 AM
Replies: 36
Views: 1,690
Posted By Schurkey
Without photos of the carb and chokestat, and...

Without photos of the carb and chokestat, and illustrations of the factory service procedures, I'm gonna go way out on a limb and say that the chokestat needs to be tightened (richer) and the choke...
Forum: Pontiac - Street 04-09-2024, 12:31 AM
Replies: 26
Views: 1,038
Posted By Schurkey
Wix is now owned by Mann + Hummel. Wix is not...

Wix is now owned by Mann + Hummel. Wix is not the company it used to be before the take-over. Stuff is getting offshored to cut costs and boost profits. Not everything...yet.

Purolator is also...
Forum: Pontiac - Street 04-02-2024, 01:14 AM
Replies: 20
Views: 1,076
Posted By Schurkey
If you readjust the choke pulloff, you also need...

If you readjust the choke pulloff, you also need to verify and perhaps readjust the linkage down to the fast idle cam.

The pulloff gets adjusted so the engine runs right--not too rich, not too...
Forum: Pontiac - Street 04-02-2024, 12:17 AM
Replies: 15
Views: 623
Posted By Schurkey
I don't understand why folks want to crank the...

I don't understand why folks want to crank the engine longer than needed. Fire the biitch up, get the oil pump spinning. Oil pressure builds quickly, oil film wedge builds almost instantly. Oil...
Forum: Pontiac - Street 03-27-2024, 11:11 PM
Replies: 8
Views: 533
Posted By Schurkey
I try to start all my core engines...assuming...

I try to start all my core engines...assuming they're in fully-assembled condition to begin with. Fresh oil and filter is recommended.
Forum: Pontiac - Street 03-27-2024, 11:01 PM
Replies: 9
Views: 445
Posted By Schurkey
EVERY "exhaust shop" can do custom bending. ...

EVERY "exhaust shop" can do custom bending.

99% of them are doing crush-bends. Very few have the capacity to do mandrel bends. Crush-bends are a waste of potential on any performance-oriented...
Forum: Pontiac - Street 03-25-2024, 05:10 PM
Replies: 31
Views: 1,562
Posted By Schurkey
Several errors and outright omissions in that...

Several errors and outright omissions in that video, none of which really matter. Kinda torques my jowls, though.

Also some good tips--using a spark tester in addition to an ohmmeter to test...
Forum: Pontiac - Street 03-24-2024, 03:53 AM
Replies: 23
Views: 948
Posted By Schurkey
First Guess: Both of you need to put the Severe...

First Guess: Both of you need to put the Severe Duty fan clutch in the recycle bin, and get a fan clutch actually recommended for your vehicles...which is almost certainly the standard-duty clutch. ...
Forum: Pontiac - Street 03-22-2024, 06:58 PM
Replies: 6
Views: 387
Posted By Schurkey
High line pressure WITHOUT ballooning the...

High line pressure WITHOUT ballooning the converter is also hard on the engine thrust bearing.

Often due to a restriction in the trans cooler plumbing, or in the cooler itself.
Forum: Pontiac - Race 03-20-2024, 12:25 PM
Replies: 28
Views: 4,189
Posted By Schurkey
https://www.speedofair.com/ Mostly...

https://www.speedofair.com/

Mostly Diesel-intensive, but supposedly "proven" on gasoline, CNG, swamp gas, etc.

Any piston that UEM makes can be dimpled, if your credit card is Nomex.
Forum: Pontiac - Street 03-18-2024, 10:00 PM
Replies: 31
Views: 1,433
Posted By Schurkey
I don't think he runs his lifter plungers toward...

I don't think he runs his lifter plungers toward the bottom of their travel specifically to make them quiet. I think he runs his lifter plungers toward the bottom of their travel so that as they...
Forum: Pontiac - Street 03-17-2024, 01:18 AM
Replies: 31
Views: 1,562
Posted By Schurkey
Worthwhile. Good news. Not...

Worthwhile.


Good news.


Not unusual.


I have the sense that you won't feel right until you inspect the lifters and cam lobes. I suggest you remove and disassemble them one at a time for...
Forum: Pontiac - Street 03-13-2024, 07:01 PM
Replies: 13
Views: 634
Posted By Schurkey
You are WAY more generous than I would be. I'd...

You are WAY more generous than I would be. I'd cut those prices in half.

Remember that this engine was so disappointing that the previous owner cut his losses after twenty miles.
Forum: Pontiac - Street 03-13-2024, 02:07 PM
Replies: 17
Views: 671
Posted By Schurkey
Open-circuit voltage at the battery terminals...

Open-circuit voltage at the battery terminals should be 12.6--12.8 depending on the battery construction. I guess Absorbed Glass Mat (AGM) batteries tend to be on the higher end of that scale.
...
Forum: Pontiac - Street 03-13-2024, 01:18 AM
Replies: 17
Views: 671
Posted By Schurkey
Starter gets hot, won't crank the engine,...

Starter gets hot, won't crank the engine, solenoid doesn't even click.

COMMON AS DIRT.

The typical problem is that there's enough corrosion on the wire harness, ignition switch, neutral safety...
Forum: Pontiac - Street 03-11-2024, 03:23 AM
Replies: 25
Views: 944
Posted By Schurkey
I'd be ten times more likely to cram-in a 4L80E...

I'd be ten times more likely to cram-in a 4L80E or similar (4L85E) than to buy and build-up a 200-4R.

The '80E is inherently much stronger than the 200, but would need an electronic controller,...
Forum: Pontiac - Street 03-10-2024, 07:51 PM
Replies: 16
Views: 835
Posted By Schurkey
First Guess: THERE IS SOMETHING WRONG. My money...

First Guess: THERE IS SOMETHING WRONG. My money is on the aftermarket caliper mounting brackets if not just plain ol' loose fasteners. Mis-adjusted wheel bearings, perhaps.

Carving more...
Forum: Pontiac - Street 03-10-2024, 07:42 PM
Replies: 64
Views: 2,726
Posted By Schurkey
Tires last fifteen minutes, or fifteen years. ...

Tires last fifteen minutes, or fifteen years. Depends on how they're used.

The tire industry has some *insane* recommendations, clearly designed by product-liability lawyers not engineers.

...
Forum: Pontiac - Street 03-10-2024, 07:29 PM
Replies: 39
Views: 1,960
Posted By Schurkey
Thinnest oil that gives acceptable hot idle oil...

Thinnest oil that gives acceptable hot idle oil pressure, within reason.

GM went on a big crusade decades ago to get people away from 10W-40. This was beaten into our heads at the GM Dealership...
Forum: Pontiac - Street 03-09-2024, 01:20 AM
Replies: 16
Views: 1,001
Posted By Schurkey
Sure. Warm or cold, doesn't make a lot of...

Sure. Warm or cold, doesn't make a lot of difference. Cold tends to produce slightly lower pressures. Yes, absolutely disconnect power from the HEI for the reasons described previously.

Some...
Forum: Pontiac - Street 03-08-2024, 02:40 AM
Replies: 16
Views: 835
Posted By Schurkey
How are those brackets and hardware looking? ...

How are those brackets and hardware looking? Photos?
Forum: Pontiac - Street 03-06-2024, 04:02 AM
Replies: 16
Views: 835
Posted By Schurkey
Is this a rear-disc conversion?

Is this a rear-disc conversion?
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