Gallery Gasket Time?

Spooler · 11-23-2021, 05:45 PM

Quote:

Originally Posted by Rojoryu

Well, I think I made a pretty stupid mistake. When I was turning the motor over by hand to time it, I didnt use the pulley or a spacer, I just put the bolt directly into the crankshaft. When I went to pull the bolt out after timing it I noticed it was a little tough coming out. And now it wants to bind up going back it after a few turns. I ordered a new bolt, but my fear is that I damaged the threads in the crankshaft. I assume I can chase the threads if that's the case but it's not something I have any experience with. Any suggestions?

Been there and done that before a long time ago. Chase it with a bottom tap with the correct thread pitch. Problem solved.

Rojoryu · 11-23-2021, 05:50 PM

Quote:

Originally Posted by redondoaveb

I wonder if the bolt bottomed out in the crankshaft and smashed the first couple of threads on the bolt. Hopefully pulling the bolt out didn't damage the crankshaft threads but I wouldn't think so. Fingers crossed

I'm hoping the same. Measuring everything out it looks like the threads on the bolt stop right about where it would bottom out in the crankshaft.

Rojoryu · 11-24-2021, 08:04 AM

Quote:

Originally Posted by Spooler

Been there and done that before a long time ago. Chase it with a bottom tap with the correct thread pitch. Problem solved.

If I wanted to buy a tap instead of making one, what size and thread pitch would it be? I've searched everywhere, called the dealer, local Indy shop and still no answer. The closest I could find on the internet was m16x1.5 but it was never confirmed.

Averying · 11-24-2021, 09:55 AM

If you can’t find any info about it, bring the bolt to your local hardware store and find a nut that threads on to determine the thread pitch.

Sent from my iPhone using Tapatalk

Rojoryu · 11-24-2021, 10:33 AM

Quote:

Originally Posted by Averying

If you can’t find any info about it, bring the bolt to your local hardware store and find a nut that threads on to determine the thread pitch.

Sent from my iPhone using Tapatalk

Thanks. I just went to 3 different ones this morning with no luck

redondoaveb · 11-24-2021, 12:37 PM

Did you try Ace hardware? They've been real helpful helping me figure out thread pitch in the past. Just for the hell of it I called Z1 and they were no help. They said they didn't know.

Rojoryu · 11-24-2021, 01:00 PM

Quote:

Originally Posted by redondoaveb

Did you try Ace hardware? They've been real helpful helping me figure out thread pitch in the past. Just for the hell of it I called Z1 and they were no help. They said they didn't know.

Lol, that's funny because I called Z1 first thing this morning. I also called SOHO which is local to me and they were no help either. I'll give ACE a try. Thanks!

redondoaveb · 11-24-2021, 01:36 PM

Quote:

Originally Posted by Rojoryu

Lol, that's funny because I called Z1 first thing this morning. I also called SOHO which is local to me and they were no help either. I'll give ACE a try. Thanks!

No wonder Z1 just blew me off. You had already called and ask the same question

Averying · 11-24-2021, 03:01 PM

If you have a set of digital calipers u might be able to measure the thread size/pitch yourself.

Rojoryu · 11-24-2021, 05:27 PM

I admit, I'm obsessing about this a bit so bear with me. Looking at everything again, it occurred to me that even with the pulley on, the face of the crank nozzle is flush to where the pulley bolt meets anyway. It's the flange on the bolt head that grabs the pulley and keeps it snug. It doesn't sandwich the pulley between the bolt head and the crankshaft (hope that makes sense). That being said, when the bolt is installed even with the motor fully dressed it's the same as if the pulley isn't there, either way the bolt head rests against the crank nozzle. I have a feeling once the new bolt shows up it will thread right in with no problems.

Tractionless · 11-25-2021, 08:49 AM

Quote:

Originally Posted by Rusty

The dimple displaces metal to lock it. It's standard practice on some equipment.

Applying the dimple won't screw up the threads in the hole or be the cause of cross threading etc? Curious as to why not high temp. thread locker.

Dreadnaught · 11-25-2021, 08:31 PM

Using just a c*nt hairs worth of blue loctite will work just fine.

Rusty · 11-25-2021, 09:20 PM

Quote:

Originally Posted by Tractionless

Applying the dimple won't screw up the threads in the hole or be the cause of cross threading etc? Curious as to why not high temp. thread locker.

Dimpling the edge of the screw won't damage the threads. Too far away. You don't touch the threads.

Rusty · 11-25-2021, 09:21 PM

Quote:

Originally Posted by Dreadnaught

Using the just a c*nt hairs worth of blue loctite will work just fine.

If you can get the hole completely free of oil and dry. Blue locktite is better

Dreadnaught · 11-25-2021, 10:42 PM

Quote:

Originally Posted by Rusty

If you can get the hole completely free of oil and dry. Blue locktite is better

Use a blow gun while hooked up to shop air and hold the nozzle to each hole and blow them out one by one. Then I'd spray them out with brake clean. Then, you could blow them out again and wait for each hole to dry before installing the new gaskets.

Brake clean should also work if you don't have access to shop air.

11-24-2021, 09:55 AM	#19 (permalink)
Averying Enthusiast Member Join Date: May 2018 Location: Rhode Island Posts: 478 Drives: '09 370Z, '03 G35 Rep Power: 14419	If you can’t find any info about it, bring the bolt to your local hardware store and find a nut that threads on to determine the thread pitch. Sent from my iPhone using Tapatalk Optimiser, Spooler and Rojoryu like this. __________________ 2009 Sport Touring \| Platinum Graphite \| GTM Stage 1 Supercharger \| BC BR Coilovers \| Hotchkis Swaybar \| Z1 FUCAs \| AME TM-02 Wheels \| Z1 2-piece Front Rotors \| Z1 Clutch & Flywheel \| Invidia Gemini Catback \| GTM Resonated Test Pipes

11-24-2021, 12:37 PM	#21 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,360 Drives: 2014 Nismo Gunmetal Rep Power: 2684374	Did you try Ace hardware? They've been real helpful helping me figure out thread pitch in the past. Just for the hell of it I called Z1 and they were no help. They said they didn't know. Rojoryu likes this. __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 700+whp

11-24-2021, 03:01 PM	#24 (permalink)
Averying Enthusiast Member Join Date: May 2018 Location: Rhode Island Posts: 478 Drives: '09 370Z, '03 G35 Rep Power: 14419	Gallery Gasket Time? If you have a set of digital calipers u might be able to measure the thread size/pitch yourself. Rojoryu likes this. __________________ 2009 Sport Touring \| Platinum Graphite \| GTM Stage 1 Supercharger \| BC BR Coilovers \| Hotchkis Swaybar \| Z1 FUCAs \| AME TM-02 Wheels \| Z1 2-piece Front Rotors \| Z1 Clutch & Flywheel \| Invidia Gemini Catback \| GTM Resonated Test Pipes

11-24-2021, 05:27 PM	#25 (permalink)
Rojoryu Base Member Join Date: Sep 2021 Location: Charlotte Posts: 48 Drives: 2011 370z Base/Sport Rep Power: 16	I admit, I'm obsessing about this a bit so bear with me. Looking at everything again, it occurred to me that even with the pulley on, the face of the crank nozzle is flush to where the pulley bolt meets anyway. It's the flange on the bolt head that grabs the pulley and keeps it snug. It doesn't sandwich the pulley between the bolt head and the crankshaft (hope that makes sense). That being said, when the bolt is installed even with the motor fully dressed it's the same as if the pulley isn't there, either way the bolt head rests against the crank nozzle. I have a feeling once the new bolt shows up it will thread right in with no problems. redondoaveb and Averying like this. Last edited by Rojoryu; 11-24-2021 at 05:30 PM.

11-25-2021, 08:31 PM	#27 (permalink)
Dreadnaught Track Member Join Date: Dec 2009 Location: Farmington, Utah Posts: 582 Drives: 14 SR 370z 6MT Rep Power: 10139	Using just a cnt hairs worth of blue loctite will work just fine. Optimiser likes this. __________________ Ford Diesel and Heavy Line Technician at your service. Last edited by Dreadnaught; 11-25-2021 at 10:44 PM.*

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