Home Menu

Menu


          
PY Online Forums - Bringing the Pontiac Hobby Together > Search Forums > Search Results
Page 1 of 20 1 2311 Last »
Showing results 1 to 25 of 500
Search took 0.16 seconds. Search: Posts Made By: steve25
Forum: Pontiac - Street Yesterday, 04:04 PM
Replies: 8
Views: 143
Posted By steve25
The only thing I see that concerns me is running...

The only thing I see that concerns me is running that cam with the #13 heads.
Your cylinder pressure will be right on the edge of being too high for pump fuel.

I would go with the XE268 or maybe...
Forum: Pontiac - Street Yesterday, 03:56 PM
Replies: 22
Views: 583
Posted By steve25
I bet your motor did not run hot until you backed...

I bet your motor did not run hot until you backed the timing off?
Are you running vacuum advance, because not running at least 8 degrees of vacuum advance and a motor running hot go hand in hand!
...
Forum: Pontiac - Street Yesterday, 02:56 PM
Replies: 10
Views: 536
Posted By steve25
With a 455 if you’re not intending to have a need...

With a 455 if you’re not intending to have a need to make peak hp above 5400 rpm then you do not need to step up to a 1.77” exh valve.

Just get a set of new intake and exh valves in the stock...
Forum: Pontiac - Race Yesterday, 11:30 AM
Replies: 9
Views: 171
Posted By steve25
I don't care about the loss in valvetrain weight...

I don't care about the loss in valvetrain weight form a small retainer in terms of a Hydro roller Cam.

For me I would first want to know if a Hydro roller lifter is heavier then a regular one, and...
Forum: Pontiac - Street 06-06-2024, 03:14 PM
Replies: 31
Views: 914
Posted By steve25
There’s no down side to running 14 or even 16 as...

There’s no down side to running 14 or even 16 as long as the motor cranks over well when heat soaked and you can get the motor to idle as low as you need.
Forum: Pontiac - Street 06-06-2024, 08:43 AM
Replies: 18
Views: 509
Posted By steve25
Your owners manual was written long before...

Your owners manual was written long before Ethanol cut fuel and depending on what he actually has taking doing what the manual recommends may make his issue worse .
Forum: Pontiac - Street 06-06-2024, 07:13 AM
Replies: 18
Views: 509
Posted By steve25
There’s zip for vacuum when your cranking the...

There’s zip for vacuum when your cranking the motor so I don’t see any point to the comment in post # 8 other then having too little base timing, or so much that the motor cranks slow.
Forum: Pontiac - Street 06-06-2024, 06:04 AM
Replies: 18
Views: 365
Posted By steve25
Oh, and any crimp on connectors used on the fan...

Oh, and any crimp on connectors used on the fan side of the relay will need to be the big ass yellow type with the crimp done right.
I have been known to solder mine to guarantee that .
Forum: Pontiac - Street 06-05-2024, 07:45 PM
Replies: 18
Views: 509
Posted By steve25
Well from what you have posted the motor cranks...

Well from what you have posted the motor cranks over fine when hot and that leaves two other possibilities for a hard start condition.

The first thing to check is that the accerator pump works...
Forum: Pontiac - Street 06-05-2024, 12:42 PM
Replies: 18
Views: 365
Posted By steve25
Voltage sag’s in anything be it battery or a DC...

Voltage sag’s in anything be it battery or a DC power supply once the ultimate amount of current available has reached its peak.
Forum: Pontiac - Street 06-05-2024, 06:01 AM
Replies: 18
Views: 365
Posted By steve25
The wiring on the fan side of the relay will need...

The wiring on the fan side of the relay will need to be 10 ga to be able to feed that level of start up current to the fan(s), is that the gauge wire you have on that run from the relay to the fan?
Forum: Pontiac - Street 06-05-2024, 05:55 AM
Replies: 8
Views: 503
Posted By steve25
What rear gearing and trans does the car have ?

What rear gearing and trans does the car have ?
Forum: Pontiac - Race 06-05-2024, 05:50 AM
Replies: 10
Views: 301
Posted By steve25
Well while .016" is not much, if it clears thru a...

Well while .016" is not much, if it clears thru a whole opening and closing cycle then keep this in mind.
At normal operating temp the lenght of the Exh valve will grow .006" or more.

I think I...
Forum: Pontiac - Street 06-04-2024, 04:07 PM
Replies: 26
Views: 842
Posted By steve25
I don’t think it was a dumb idea,I think it was a...

I don’t think it was a dumb idea,I think it was a dumb idea to try and pass that off as a legitimate Pontiac seal.
I think that seal is for a totally different application that has the needed OD set...
Forum: Pontiac - Street 06-03-2024, 07:41 PM
Replies: 31
Views: 914
Posted By steve25
Wait now, so base is 12, vac advanced with...

Wait now, so base is 12, vac advanced with manifold vacuum at idle brings you to 24, and then had mechanical advance bring you in another 24 by 4000 rpm before things got screwed up?

You did not...
Forum: Pontiac - Street 06-03-2024, 06:19 PM
Replies: 9
Views: 413
Posted By steve25
I would rather have a hole there like in post #5!...

I would rather have a hole there like in post #5! as I have had in many blocks then a casting flaw like that.
Forum: Pontiac - Street 06-03-2024, 10:15 AM
Replies: 40
Views: 1,753
Posted By steve25
Since there’s now been a good amount of grit...

Since there’s now been a good amount of grit flowing around in the motor once your tare it down inspect the piston skirts for imbedded grit and of course scratches.

Also pull the oil galley plugs...
Forum: Pontiac - Race 06-03-2024, 05:56 AM
Replies: 8
Views: 395
Posted By steve25
You should be thinking about what will give you...

You should be thinking about what will give you the most consistent 60 ft times, not he hardest or the fastest.
You can't always count on a well prepared track !
Forum: Pontiac - Street 06-03-2024, 05:53 AM
Replies: 22
Views: 583
Posted By steve25
What Pistons got used in that rebuild, .030" over...

What Pistons got used in that rebuild, .030" over 400 pistions with 4 valve notches I hope?
Forum: Pontiac - Street 06-03-2024, 05:50 AM
Replies: 24
Views: 963
Posted By steve25
Glad to hear it's better, but why did you break...

Glad to hear it's better, but why did you break in the Cam in 3 ten minute sessions ?

I have never done less then a straight 20 minutes.

Even on hot day and with running the motor unloaded it...
Forum: Pontiac - Street 06-03-2024, 05:38 AM
Replies: 40
Views: 1,753
Posted By steve25
I think in you second paragraph here within the...

I think in you second paragraph here within the revaltion of the valve train clacking noise that goes away you will find the root cause of this distruction.
Forum: Pontiac - Street 06-02-2024, 03:20 PM
Replies: 22
Views: 583
Posted By steve25
So for 32 years you have not done a cranking...

So for 32 years you have not done a cranking compression test ?
How do your plugs look?

What’s your air to fuel ratio?
Forum: Pontiac - Street 06-02-2024, 03:12 PM
Replies: 4
Views: 289
Posted By steve25
I would first do a properly done hot cranking...

I would first do a properly done hot cranking compression test.

Would also try and do a leak down test to see if any valves are not sealing well.

What cam do you have in the motor?
Forum: Pontiac - Street 06-02-2024, 03:11 PM
Replies: 4
Views: 289
Posted By steve25
I would first do a properly done hot cranking...

I would first do a properly done hot cranking compression test.

I Would also try and do a leak down test to see if any valves are not sealing well.

Even motors with warn cams can burn rubber,
...
Forum: Pontiac - Street 06-02-2024, 08:51 AM
Replies: 24
Views: 963
Posted By steve25
I can’t put enough emphasis on checking your...

I can’t put enough emphasis on checking your total timing with out vacuum advance hooked up at 5000 rpm to confirm that it’s not over advancing on you.
Showing results 1 to 25 of 500
Page 1 of 20 1 2311 Last »

 
Forum Jump

All times are GMT -4. The time now is 12:07 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Contact Us Home
Copyright © 2017