Lighter = Faster (N/A build thread #2) - Page 14

djmtsu · 03-07-2018, 09:54 AM

So, that means Pete is coming this year???????????

infernosg · 03-07-2018, 10:13 AM

Quote:

Originally Posted by djmtsu

Come on man! Live a little!!

The Cosmo came from a field! We put the engine in Monday, and drove out Wednesday. It had less than 100 miles on it, and then went on a fantastic voyage!!

I do have heat though

I'm sure I could do it. Would need bluetooth speaker and some earplugs though. Just nervous about the car breaking down in the middle-of-nowhere, NC.

Quote:

Originally Posted by djmtsu

That is true. But I really want to see this at DGRR.

Getting sick of Zach's beautiful FC always dominating the FC category!!!!

I think he still has me beat in the looks department. I've got a good "10-20 ft" car.

Quote:

Originally Posted by GySgtFrank

This is true. The Great Pumpkin has a definite shot.

What is this "Great Pumpkin" or did my car just earn its name?

GySgtFrank · 03-07-2018, 10:29 AM

Quote:

Originally Posted by infernosg

What is this "Great Pumpkin" or did my car just earn its name?

I take it you're not a "Peanuts" aka "Charlie Brown" comics fan. The Great Pumpkin was Linus' Halloween creation in lieu of Santa Claus. The Great Pumpkin was supposed to rise up from the pumpkin patches around the world and ride across the sky bringing toys and candy to all the good little boys and girls. Unfortunately Linus was the only one lying out in the pumpkin patch at night waiting for him. :le sigh:

Pete_89T2 · 03-07-2018, 11:34 AM

Quote:

Originally Posted by djmtsu

So, that means Pete is coming this year???????????

Yup, would have been there last year too, except I had an untimely issue with the then newly installed AEM Infinity ECU.

infernosg · 03-26-2018, 01:01 PM

Finally got the suspension aligned and the car weighed. ~2340 lb with half a tank of fuel and no driver. From my understanding of stock weights that's ~300 lb lighter than the '86 base model. With me inside it's nearly an even 2500 lb - perfect.

I'm getting some noise out of the front end so I think it's time to check out the wheel bearings. Hopefully it's just preload but I'll pull everything apart and check all the races to be sure.

I still haven't replaced the front transmission bearings but I did finally order another seat and harness so I can have passenger's again. I'll be taking the new ones and swapping the older stuff to the passenger's side.

I still want to make it to DGRR and it's looking more and more like I'm going to have to drive it. I'll be taking a 3 hour road trip the weekend before, which will be a good shakedown. It won't be fully tuned but it'll definitely be broken in by that point.

FC Zach · 03-26-2018, 11:10 PM

Quote:

Originally Posted by infernosg

I still want to make it to DGRR and it's looking more and more like I'm going to have to drive it. I'll be taking a 3 hour road trip the weekend before, which will be a good shakedown. It won't be fully tuned but it'll definitely be broken in by that point.

infernosg · 03-29-2018, 07:55 AM

There is a chance, yes. I got the new seat installed and the old seat switched over to the passenger's side. I just need to drill a hole in the floor for the fifth point.

I've ordered new rear bearings for the transmission. I figure since I'm already going to be in there replacing the front bearings I should replace the rear as well. I'm not planning on replacing the center bearings since that requires near complete disassembly of the transmission. I plan on re-checking the clearances and have ordered new washers just in case anything is out. Hopefully that'll fix the neutral and 4th gear noise I'm getting and maybe even fix the vibration in 5th. The plan is to have all this done by 4/20 and I still need to check the front wheel bearings...

infernosg · 03-31-2018, 09:32 AM

Been trying to figure out why the car has been tracking to the right after the alignment. I don't doubt the shops machine so I'm thinking the issue is with the car. Tire pressures are good. Ride height is even. Front wheel bearing play and pre-load was way off. After removal and cleaning the bearings and races looked really good so I just repacked them and properly set the pre-load. I haven't road-tested the car yet but all the play is gone. I'm track to hit 2000 miles and complete break-in by the end of April. If I can make it to DGRR maybe I'll get some road tuning in...

infernosg · 04-04-2018, 03:10 PM

Some pictures...

New seat and brackets:

In the car with the old swapped over to the passenger's side:

Even with the new brackets I wasn't able to get the driver's seat low enough to prevent the steering wheel from blocking the shift lights and turn signals. I broke down I got a 380 mm wheel with a 35 mm dish. The old one is 350 mm with a 65 mm dish. Installed:

It's noticeably larger but overall it's a more comfortable position and I can see my full display. The larger diameter also helps with the low speed turning a little.

In order to make it to DGRR I have two things to accomplish:
1) Replace front and rear bearings in the transmission and check end play.
2) Get headlights aimed properly

(2) is easy and I'll have that done this weekend. (1) is still waiting on some parts to come in.

FC Zach · 04-04-2018, 11:25 PM

That looks great!

infernosg · 04-08-2018, 02:42 PM

Quote:

Originally Posted by FC Zach

Committed. No turning back now. The FC is the plan provided I can get the transmission and wheel bearings sorted in the next two weeks. If not it'll be the SA.

infernosg · 04-16-2018, 11:08 AM

Replaced the front wheel bearings and races yesterday since I had play in the driver's side. I heated the hubs in the oven and rapidly cooled the outer races with ice water get them out. I ended up re-using the seals though. The new seals put too much pressure on the hub to get an accurate measurement of the bearing pre-load (followed FSM procedure). Unfortunately, I'm still getting play on the driver's side. I'd go as far as saying it isn't improved. I even went out today and torque the hub nut to 22 ft-lb and STILL had play. I didn't see anything else moving so I'm left with the assumption the spindle itself is worn out. Does that even happen on these cars? I guess I'll try to find a used one and replace it before DGRR.

djmtsu · 04-16-2018, 11:13 AM

Interesting. I personally have only ever had ONE wheel bearing go bad on an FC, and I blame Chicago for that (when I lived there).

It isn't common, but I suppose it does happen. I have a couple of loaded knuckles. But they are quite heavy.

infernosg · 04-16-2018, 01:24 PM

Quote:

Originally Posted by djmtsu

Interesting. I personally have only ever had ONE wheel bearing go bad on an FC, and I blame Chicago for that (when I lived there).

It isn't common, but I suppose it does happen. I have a couple of loaded knuckles. But they are quite heavy.

I didn't notice anything until I took the car in for an alignment a while back. They mentioned some play in the wheels so I took a look. Both sides had some play at that time but after resetting the pre-load per the FSM the passenger side was fixed. I think this just confirms the bearings were okay but something else is going on. The spindle looked okay but I didn't see any movement in the ball joint in the lower control arm so I don't know what else it would be. It seems unlikely I have two sets of bad bearings.

Pete_89T2 · 04-16-2018, 02:01 PM

How much play does it have, and how did you measure/test for it?

03-07-2018, 09:54 AM	#196
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	So, that means Pete is coming this year??????????? __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

03-26-2018, 01:01 PM	#200
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA Posts: 811 Rep Power: 16	Finally got the suspension aligned and the car weighed. ~2340 lb with half a tank of fuel and no driver. From my understanding of stock weights that's ~300 lb lighter than the '86 base model. With me inside it's nearly an even 2500 lb - perfect. I'm getting some noise out of the front end so I think it's time to check out the wheel bearings. Hopefully it's just preload but I'll pull everything apart and check all the races to be sure. I still haven't replaced the front transmission bearings but I did finally order another seat and harness so I can have passenger's again. I'll be taking the new ones and swapping the older stuff to the passenger's side. I still want to make it to DGRR and it's looking more and more like I'm going to have to drive it. I'll be taking a 3 hour road trip the weekend before, which will be a good shakedown. It won't be fully tuned but it'll definitely be broken in by that point. __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

03-29-2018, 07:55 AM	#202
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA Posts: 811 Rep Power: 16	There is a chance, yes. I got the new seat installed and the old seat switched over to the passenger's side. I just need to drill a hole in the floor for the fifth point. I've ordered new rear bearings for the transmission. I figure since I'm already going to be in there replacing the front bearings I should replace the rear as well. I'm not planning on replacing the center bearings since that requires near complete disassembly of the transmission. I plan on re-checking the clearances and have ordered new washers just in case anything is out. Hopefully that'll fix the neutral and 4th gear noise I'm getting and maybe even fix the vibration in 5th. The plan is to have all this done by 4/20 and I still need to check the front wheel bearings... __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

03-31-2018, 09:32 AM	#203
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA Posts: 811 Rep Power: 16	Been trying to figure out why the car has been tracking to the right after the alignment. I don't doubt the shops machine so I'm thinking the issue is with the car. Tire pressures are good. Ride height is even. Front wheel bearing play and pre-load was way off. After removal and cleaning the bearings and races looked really good so I just repacked them and properly set the pre-load. I haven't road-tested the car yet but all the play is gone. I'm track to hit 2000 miles and complete break-in by the end of April. If I can make it to DGRR maybe I'll get some road tuning in... __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

04-04-2018, 03:10 PM	#204
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA Posts: 811 Rep Power: 16	Some pictures... New seat and brackets: In the car with the old swapped over to the passenger's side: Even with the new brackets I wasn't able to get the driver's seat low enough to prevent the steering wheel from blocking the shift lights and turn signals. I broke down I got a 380 mm wheel with a 35 mm dish. The old one is 350 mm with a 65 mm dish. Installed: It's noticeably larger but overall it's a more comfortable position and I can see my full display. The larger diameter also helps with the low speed turning a little. In order to make it to DGRR I have two things to accomplish: 1) Replace front and rear bearings in the transmission and check end play. 2) Get headlights aimed properly (2) is easy and I'll have that done this weekend. (1) is still waiting on some parts to come in. __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

04-04-2018, 11:25 PM	#205
FC Zach RCC Loves Me Not You Join Date: Mar 2008 Location: Eagleville, TN Posts: 2,267 Rep Power: 20	That looks great! __________________ 1993 Yamaha GTS1000 1992 Celica Turbo AllTrac 1987 RX7 Sport 1979 Yamaha G1, KM24 powered 1975 Dolmar KMS4

04-16-2018, 11:08 AM	#207
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA Posts: 811 Rep Power: 16	Replaced the front wheel bearings and races yesterday since I had play in the driver's side. I heated the hubs in the oven and rapidly cooled the outer races with ice water get them out. I ended up re-using the seals though. The new seals put too much pressure on the hub to get an accurate measurement of the bearing pre-load (followed FSM procedure). Unfortunately, I'm still getting play on the driver's side. I'd go as far as saying it isn't improved. I even went out today and torque the hub nut to 22 ft-lb and STILL had play. I didn't see anything else moving so I'm left with the assumption the spindle itself is worn out. Does that even happen on these cars? I guess I'll try to find a used one and replace it before DGRR. __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

04-16-2018, 11:13 AM	#208
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Interesting. I personally have only ever had ONE wheel bearing go bad on an FC, and I blame Chicago for that (when I lived there). It isn't common, but I suppose it does happen. I have a couple of loaded knuckles. But they are quite heavy. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

04-16-2018, 02:01 PM	#210
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	How much play does it have, and how did you measure/test for it?

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