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Search took 0.01 seconds. Search: Posts Made By: Shockwave78
Forum: Pontiac - Street 10-31-2024, 11:00 PM
Replies: 17
Views: 1,274
Posted By Shockwave78
Do the heads have to be milled for those seals?

Do the heads have to be milled for those seals?
Forum: Pontiac - Street 10-31-2024, 01:01 PM
Replies: 17
Views: 1,274
Posted By Shockwave78
I'm not planning on it, like 78w72 said, it'd be...

I'm not planning on it, like 78w72 said, it'd be better to wait and save up to do it properly
Forum: Pontiac - Street 10-31-2024, 11:52 AM
Replies: 17
Views: 1,274
Posted By Shockwave78
I am definitely going to pick up some stabilizer...

I am definitely going to pick up some stabilizer and look at getting the tools, hopefully, I can get this knocked out within a few weeks. You will know how it goes based on whether or not you see a...
Forum: Pontiac - Street 10-31-2024, 09:18 AM
Replies: 17
Views: 1,274
Posted By Shockwave78
Had no idea those were still made, I was just...

Had no idea those were still made, I was just looking at the pictures in the pontiac manual thinking "where the hell am I going to get the gm tool for this"
Forum: Pontiac - Street 10-31-2024, 08:15 AM
Replies: 17
Views: 1,274
Posted By Shockwave78
Im definitely going to do my research on that, I...

Im definitely going to do my research on that, I really don't want to drop a valve.

I don't recall ever hearing a miss or anything weird, but at the end of an 1100 mile trip, the plugs were so...
Forum: Pontiac - Street 10-31-2024, 07:40 AM
Replies: 17
Views: 1,274
Posted By Shockwave78
I appreciate mentioning the OE valve assembly, I...

I appreciate mentioning the OE valve assembly, I just sat here for 20 minutes trying to remember how I put the heads back together. I don't think I installed the o ring from the top after the splash...
Forum: Pontiac - Street 10-30-2024, 11:21 PM
Replies: 17
Views: 1,274
Posted By Shockwave78
Mitigating valve guide oil leakage

I rebuilt the bottom end of my 78 400 during the summer of 2023, new rings and bearings, honed cylinders, cleaned the valves, and replaced the valve stem o-rings plus a few other odds and ends. At...
Forum: Pontiac - Street 08-14-2023, 10:13 AM
Replies: 277
Views: 58,158
Posted By Shockwave78
it was firing on all 8, I checked the cam timing,...

it was firing on all 8, I checked the cam timing, it was installed correctly, and the new timing set is cut exactly the same as the old stock one, so I don't believe cam timing is the issue. I don't...
Forum: Pontiac - Street 08-13-2023, 06:54 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
no, all intake runners are wet with oil, I think...

no, all intake runners are wet with oil, I think it was getting oil through the pcv system. the pcv port on the carb did have some oil in it. The inboard exhaust ports do have the crossover on the...
Forum: Pontiac - Street 08-13-2023, 06:07 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Before I tore the engine apart it was a daily for...

Before I tore the engine apart it was a daily for about a year, and didnt have any issues so I don't know how "short lived" it would have been. The car has done multiple cross country trips.
Forum: Pontiac - Street 08-13-2023, 06:04 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
That would be ideal of course, but it's not like...

That would be ideal of course, but it's not like I'm the only person to do a cam swap, there is something else going on, it's just a matter of finding it. The other big factor is I start school on...
Forum: Pontiac - Street 08-13-2023, 05:17 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
It ran fine, but it pushed oil into the air...

It ran fine, but it pushed oil into the air cleaner from the valve cover breather. The cam and rings were planned before the engine came apart.
Forum: Pontiac - Street 08-13-2023, 05:16 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Small flecks of metal, I'm sure that some of it...

Small flecks of metal, I'm sure that some of it is from the bearings and some is from breaking in the rings
Forum: Pontiac - Street 08-13-2023, 03:38 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Yes I put the oil Shields in

Yes I put the oil Shields in
Forum: Pontiac - Street 08-13-2023, 02:53 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Only on cold starts pic is a rod bearing

Only on cold starts pic is a rod bearing
Forum: Pontiac - Street 08-13-2023, 02:29 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
What about the pcv system, it did have oil in the...

What about the pcv system, it did have oil in the valve and hose
Forum: Pontiac - Street 08-13-2023, 02:18 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
The original o rings were pretty much gone, I...

The original o rings were pretty much gone, I replaced them with the stock O rings
Forum: Pontiac - Street 08-13-2023, 01:56 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Outer 2 on both sides are wet with oil/gas inner...

Outer 2 on both sides are wet with oil/gas inner two on Both are dry
Forum: Pontiac - Street 08-13-2023, 01:45 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
There doesn't seem to be any broken...

There doesn't seem to be any broken pistons/rings. When the engine was running I never heard any pinging or detonaton. None were rocking at TDC or making scraping noises. There is definitely scoring...
Forum: Pontiac - Street 08-13-2023, 01:29 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
some better pics

some better pics
Forum: Pontiac - Street 08-13-2023, 01:19 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Good news, the crosshatch is still in all 8...

Good news, the crosshatch is still in all 8 cylinders, but there Is enough oil in the cylinders to pool on the valve reliefs. The pistons were 100 percent clean when this went together
Forum: Pontiac - Street 08-13-2023, 12:47 PM
Replies: 277
Views: 58,158
Posted By Shockwave78
Is 320 grit ok for plain cast rings?

Is 320 grit ok for plain cast rings?
Forum: Pontiac - Street 08-13-2023, 11:15 AM
Replies: 277
Views: 58,158
Posted By Shockwave78
I will be using a three-stone hone, would there...

I will be using a three-stone hone, would there be an advantage to using a ball hone?
Forum: Pontiac - Street 08-13-2023, 11:14 AM
Replies: 277
Views: 58,158
Posted By Shockwave78
yes, I originally thought it was gas from the...

yes, I originally thought it was gas from the carb being misadjusted but the intake walls and floor were covered in oil
Forum: Pontiac - Street 08-13-2023, 10:58 AM
Replies: 277
Views: 58,158
Posted By Shockwave78
I am going to try and hone it first, I'm not sure...

I am going to try and hone it first, I'm not sure if I can get away with it though
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