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Forum: Pontiac - Street 09-24-2019, 05:07 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
I normally measure the piston at the "Gauge...

I normally measure the piston at the "Gauge point" provided by the piston manufacturer just like Paul did. In an abnormal situation like our funny car engine I measure at the tip of the skirt...
Forum: Pontiac - Street 09-24-2019, 10:54 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Theory only! It could have run like that for a...

Theory only! It could have run like that for a very long time pissing off the owner every time he drove the car. Not the way to enjoy a great car like a GTO. I drove a Jeep 4.0L with the skirt...
Forum: Pontiac - Street 09-23-2019, 10:11 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Paul, In my attempted explanation of what caused...

Paul, In my attempted explanation of what caused a piston skirt to collapse, I didn't know anything about something getting into the #5 cylinder. That could have been in the nearly 1400 posts...
Forum: Pontiac - Street 09-22-2019, 01:27 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Yes to answer your question but your picture...

Yes to answer your question but your picture isn't good to compare. Look at post #1367 at a Ross forged piston. Only the little "tongue" sticking down reflects the minimum piston to wall clearance....
Forum: Pontiac - Street 09-22-2019, 01:11 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Again, I am most happy that the engine is...

Again, I am most happy that the engine is repaired, in the car and doing what a Pontiac is supposed to do. Tearing the tires off in a smoky cloud is what I mean. If in fact the piston skirt was...
Forum: Pontiac - Street 09-22-2019, 10:22 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
First, I am happy the problem with your engine...

First, I am happy the problem with your engine has been diagnosed, verified, repaired, re-installed, run and verified again. That ends the mechanical drama of this very long thread. Financially,...
Forum: Pontiac - Street 09-22-2019, 10:16 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
A collapsed piston skirt is a situation where the...

A collapsed piston skirt is a situation where the lower part of the piston, (skirt) crushes in toward itself in operation. From here, it gets rather complicated. The tendency for a skirt to...
Forum: Pontiac - Street 09-22-2019, 09:58 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
First, I am happy the problem with your engine...

First, I am happy the problem with your engine has been diagnosed, verified, repaired, re-installed, run and verified again. That ends the mechanical drama of this very long thread. Financially,...
Forum: Pontiac - Street 08-25-2019, 12:31 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Looks like that area between the timing case and...

Looks like that area between the timing case and the aftermarket balancer needs a little attention. Once the real problem is discovered and corrected, I would carefully trim the timing cover a...
Forum: Pontiac - Street 08-24-2019, 09:46 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Honestly, I wouldn't worry or be concerned about...

Honestly, I wouldn't worry or be concerned about the little oil drip right now. Stay focused on the prize. That little drip is either the front crankshaft seal or the front of the oil pan. Easily...
Forum: Pontiac - Street 08-24-2019, 08:08 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
If the balancer is a source of any type of...

If the balancer is a source of any type of knocking or ticking, there should be witness marks on the balancer or timing cover where contact has happened. Good luck.
Forum: Pontiac - Street 08-22-2019, 11:13 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
This entire area of the engine assembly needs a...

This entire area of the engine assembly needs a very close look , (If and When) the engine comes apart again. The noise has been confirmed in that area of the engine. A quickly worn distributor...
Forum: Pontiac - Street 08-01-2019, 03:13 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
OK, so my misunderstanding. To be clear, the...

OK, so my misunderstanding. To be clear, the engine ran smooth and fine with this carburetor on it on the dyno. Got it. Sorry to take this off track. I agree with your approach of getting it...
Forum: Pontiac - Street 08-01-2019, 09:18 AM
Replies: 1,465
Views: 155,529
Posted By mgarblik
It seems to me you will be dealing with two...

It seems to me you will be dealing with two situations on this engine that may or may not be related. 1. very rough idling/running engine. 2. Engine noise.
Since the "engine noise" has been...
Forum: Pontiac - Street 07-29-2019, 03:27 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Very good then. Don't mean to be bringing things...

Very good then. Don't mean to be bringing things back up that have been checked and verified. We are thinking along the same lines though. "What is different here in VA, that has changed from AZ...
Forum: Pontiac - Street 07-29-2019, 12:45 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Way, way back in these 950+ posts, I suggested...

Way, way back in these 950+ posts, I suggested removing the flexplate completely and running the engine just to make sure. My dyno set-up requires a manual transmission flywheel, not a flex plate to...
Forum: Pontiac - Street 07-20-2019, 07:06 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
I just had this crazy idea pop in my head. I...

I just had this crazy idea pop in my head. I keep trying to think, "what's different from the dyno than the installation in your car". I don't know what type of dyno your engine was run on, but my...
Forum: Pontiac - Street 07-20-2019, 03:47 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
If it is piston slap, get it fully up to...

If it is piston slap, get it fully up to operating temperature and it should go away. If it does, your worries are over. If it has forged pistons it will make some piston noise until they grow. ...
Forum: Pontiac - Street 07-20-2019, 03:44 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
I listened to the videos of the engine and I do...

I listened to the videos of the engine and I do hear some rhythmic noise. If God forbid, I was stuck working on a situation like this, here is how I would proceed. 1. Go ahead and swap the...
Forum: Pontiac - Street 07-15-2019, 07:25 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
My comment is directed to the engine noise in the...

My comment is directed to the engine noise in the car now. If the engine was run on a dyno 4 times and had no noise, but does have the noise when installed in the car, then the problem has to be...
Forum: Pontiac - Street 06-05-2019, 08:45 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
This is great news. So many of these stories...

This is great news. So many of these stories have a lousy outcome. Not with anything from Paul, just the hobby in general. You chose your builder wisely. Enjoy your car with traditional Pontiac...
Forum: Pontiac - Street 05-05-2019, 10:49 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
I have no reason to doubt anything you say...

I have no reason to doubt anything you say concerning your last post. I have been following this from the beginning and look forward to a happy end to the saga. Good luck with your car and engine. ...
Forum: Pontiac - Street 05-05-2019, 09:39 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
X2 big time on standing behind the work. I hope...

X2 big time on standing behind the work. I hope the OP realizes that 90% of the engine shops operating would have washed their hands completely as soon as the engine was delivered. Especially when...
Forum: Pontiac - Street 05-05-2019, 09:02 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
Agree, I did not mean to recommend blocking the...

Agree, I did not mean to recommend blocking the bypass in my earlier post. I would much rather have dirty oil, or even oil with a little bushing material in it lubricating my bearings than NO OIL in...
Forum: Pontiac - Street 05-05-2019, 04:53 PM
Replies: 1,465
Views: 155,529
Posted By mgarblik
That's the brand and style I use on the vast...

That's the brand and style I use on the vast majority of the cars I service and race. This includes the nitro funny car, (NAPA/WIX racing filters) IMO, the filter isn't a problem, a junk...
Showing results 1 to 25 of 37

 
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