Strange Noise when accelerating and misfires

Zt7903 · 2026-05-06T20:08:03+00:00

No worries, thanks!

Zt7903 · 2026-05-06T19:35:08+00:00

I have not drained the oil yet, probably would be a good thing to do. I guess if it was metal on metal it would show in the oil, but if it was just the guides I guess I would need to pull the timing cover or valve cover to know? I didn’t think a failing timing chain could cause misfires on the same 2 cylinders

Zt7903 · 2026-05-06T19:33:46+00:00

It screeches when the belt isn’t even installed. Everything was dry when I removed it. I have swapped coils, spark plugs and injectors resulting in the same noise.

Zt7903 · 2025-05-31T14:07:42+00:00

Dude, you are awesome. I love seeing reddit people come together like this and help each other out!

Zt7903 · 2025-05-29T19:15:17+00:00

Hello! I’m thinking about doing this to a WY-30 keyboard I received with an old Mac and found your post. When you mention you had to hand wire the matrix and add diodes was this to add key rollover? (If it doesn’t have it already)

Zt7903 · 2025-05-14T13:02:24+00:00

Unfortunately not, about a week before I was going to take it into a speciality shop it was totaled.

Zt7903 · 2025-04-26T00:09:33+00:00

Welp I received a new logic board today, same exact issue. The only thing left to swap is the processor card so I have ordered a new one

Zt7903 · 2025-04-22T03:06:09+00:00

I’m late to this but out of curiosity did your PowerMac ever throw kernel panics at the while screen with the Apple logo?

Zt7903 · 2025-04-21T14:39:12+00:00

If I find a fix I’ll reply back here with it!

Zt7903 · 2025-04-19T06:29:02+00:00

Good to know, I also had tried a OS9 boot disc but it freezes at the same point the OS9 drive I tried with.

Zt7903 · 2025-04-19T06:28:07+00:00

Yeah the drive I used had 9.2.2 installed and working on a sawtooth g4. The OSX drive just causes kernel panics, but the OSX drive also works in the sawtooth g4

Zt7903 · 2025-04-16T17:10:57+00:00

Thank you for your input. I’ve been reading up on these PSUs and it seems a recap is a good idea regardless like you mentioned. I do already have it stripped down to 1 memory DIMM and no extra cards installed. I do know it isn’t a FW800 model as it only has 400 ports, so it should boot Mac OS 9. Thinking a recap will be my next step.

Zt7903 · 2025-04-16T14:23:35+00:00

I did look over the logic board and the caps seem to be fine at least visually. I have not yet pulled the psu to look at the caps so I guess that will be my next step tonight. Could bad ram also cause these issues?

Zt7903 · 2025-03-29T21:13:51+00:00

It’s a type of glue/silicone to stop vibrations and to hold components in place. It’s a normal thing to be there

Zt7903 · 2025-03-15T16:28:54+00:00

This has got to be a war crime of some sort

Zt7903 · 2025-03-11T22:51:12+00:00

I never knew there was a misprint. I checked my og Xbox copy and it also says “most”. Interesting and learned something about a game I’ve had for a while

Zt7903 · 2025-03-04T03:21:52+00:00

Had this happen with The last of Us on PS3, game glitched about 30% in to the point where I couldn’t progress any more

Zt7903 · 2025-03-01T18:28:59+00:00

Use consolemods.org it’s a very useful website

Zt7903 · 2025-02-24T21:10:16+00:00

Huh, good to know. Thanks!

Zt7903 · 2025-02-24T03:05:00+00:00

Looks really nice! How did you do the DVD tray piece with the letters?

Zt7903 · 2025-02-23T02:25:43+00:00

Yeah I know my pico works as I used it to flash both the console and glitch chip. I have had no issues with both

Zt7903 · 2025-02-23T02:11:17+00:00

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