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Search took 0.24 seconds. Search: Posts Made By: Sirrotica
Forum: Pontiac - Street 08-22-2019, 10:41 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Thinking some more about it, if the short block...

Thinking some more about it, if the short block was built, and the pump and shaft was in the block, rotating the assembly over without the distributor in the block wouldn't show contact with the...
Forum: Pontiac - Street 08-22-2019, 08:43 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Yes it would, and the oil pump shaft has a...

Yes it would, and the oil pump shaft has a polished or scratched portion only on one side, from the pictures shown in the past. I've always wondered why there is such an unusual section shiny only...
Forum: Pontiac - Street 08-22-2019, 08:14 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Then is this block not a 400, (I was under the...

Then is this block not a 400, (I was under the impression it was a small journal block) it's a 455 large journal block? or is it a 400 block with the 455 crank mains cut?

I've never read that...
Forum: Pontiac - Street 08-22-2019, 07:45 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
FWIW, thinking about it last night, if the crank...

FWIW, thinking about it last night, if the crank counter weight was interfering with the oil pump driveshaft, it would be timed with the timing chain and gears. The shaft would only hit at a specific...
Forum: Pontiac - Street 08-21-2019, 10:00 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Since the thread started it was suggested...

Since the thread started it was suggested numerous times, and has been thoroughly checked more than once, from the owner, and the people doing the diagnostic work, there isn't an exhaust leak.
...
Forum: Pontiac - Street 08-21-2019, 07:38 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
They have spun the engine over with the...

They have spun the engine over with the distributor removed and observed for runout, reported no runout.
Forum: Pontiac - Street 08-20-2019, 09:19 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
I agree, My LS2 in my GTO has had piston slap...

I agree, My LS2 in my GTO has had piston slap since I bought it new in 2006, and now has 140,000 miles on it. It sounds nothing like piston slap. Piston slap also varies with ambient temperature. At...
Forum: Pontiac - Street 08-17-2019, 07:27 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
This is probably a pretty good idea to find out...

This is probably a pretty good idea to find out if there is metal circulating in the oil and what type of metal it is. If nothing else it will give anyone tearing into the engine an indicator of...
Forum: Pontiac - Street 07-30-2019, 06:36 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
They ran a jumper wire directly from the positive...

They ran a jumper wire directly from the positive battery post directly to the distributor last weekend, it's in the posts from last weekends diagnostic efforts.
Forum: Pontiac - Street 07-27-2019, 12:26 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
I'm 66 YO, :old: I've made my living working on...

I'm 66 YO, :old: I've made my living working on cars and equipment for 50 years. I never had until about 10 years ago. I had a valve hung badly, I used carb cleaner and a hammer, that was how I...
Forum: Pontiac - Street 05-06-2019, 04:10 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Full flow oil filters speced for a Pontiac...

Full flow oil filters speced for a Pontiac Stratostreak V8 do not have internal by pass valves. The one in the oil filter elbow is the only safeguard in the oil system. Blocking that safeguard allows...
Forum: Pontiac - Street 05-05-2019, 08:05 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
NAPA gold is a 20 micron filter and is 50%...

NAPA gold is a 20 micron filter and is 50% efficient at a single pass, so 1 out of 2, 20 micron particles are caught with first pass. Typical of a full flow filter and blocking the bypass valve...
Forum: Pontiac - Street 10-12-2018, 10:44 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
I would say yes, because there is no flex going...

I would say yes, because there is no flex going on when the two aren't bolted together. If it doesn't go away and the flexplate is rotating by itself, the noise should change appreciably, I would...
Forum: Pontiac - Street 10-09-2018, 06:11 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
The transmission doesn't even have to come out of...

The transmission doesn't even have to come out of the car to change a flexplate. If you know how to do it just sliding the transmission towards the rear and working on it through the gap. I can...
Forum: Pontiac - Street 10-03-2018, 10:52 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
As you have come late to this post, On page 13,...

As you have come late to this post, On page 13, post # 249 I also suggested using a length of hose to pinpoint the source of the noise. Using a length of hose I'm fairly certain they at least will...
Forum: Pontiac - Street 09-24-2018, 10:32 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
It's the stack up of tolerances that would need...

It's the stack up of tolerances that would need this, the same as starter to block shims. However whenever parts are machined, or exchanged, the factory window of tolerances will no longer apply. I...
Forum: Pontiac - Street 09-21-2018, 05:46 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
There are 2 parts that I believe are being...

There are 2 parts that I believe are being confused here. There is a reinforcement ring that is sometimes used under the bolt shoulder and on top of the flexplate. There is also a shim that goes...
Forum: Pontiac - Street 09-20-2018, 09:58 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
As long as you have the new balanced flexplate by...

As long as you have the new balanced flexplate by all means install it. I really have little faith it's going to cure the noise though. I feel you're in the right area, but if the noise gets cured by...
Forum: Pontiac - Street 09-20-2018, 09:02 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
From the pictures it doesn't appear to have...

From the pictures it doesn't appear to have cracks in it, although looking at a picture isn't optimum for a diagnosis on this matter. Usually there is rust around the cracks in a flexplate making the...
Forum: Pontiac - Street 09-19-2018, 08:36 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Not all Pontiacs had the shim, I've put a good...

Not all Pontiacs had the shim, I've put a good many of them together without it and never had any ill effects not using it. Pontiac is the only manufacturer that I have seen use a shim between the...
Forum: Pontiac - Street 09-19-2018, 03:30 PM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Ring gear starter interference is entirely...

Ring gear starter interference is entirely possible, or a weak return solenoid spring allowing the Bendix gear to interfere from not returning fully. One would think that if the Bendix was touching...
Forum: Pontiac - Street 09-19-2018, 08:19 AM
Replies: 1,465
Views: 155,541
Posted By Sirrotica
Since I've seen at least a dozen cracked...

Since I've seen at least a dozen cracked flexplates over the years, it does sound like a cracked flexplate on that video. Pontiacs are less prone than chevys are, but I have seen both along with a...
Showing results 1 to 22 of 22

 
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