What did you do to your supra today? Pics

A70nut

Active Member
Authorized Seller
Joined
Sep 21, 2018
Messages
171
Location
Lexington, Ky
It seems that by memory I have read something before that thanks to the pickup and oiling design on a 7m the number 2 rod bearing is the first to spin? Any other signs of oil starvation?
 

suprajim54

Member
Authorized Seller
Joined
Sep 2, 2009
Messages
142
Location
Dallas, Texas
It seems that by memory I have read something before that thanks to the pickup and oiling design on a 7m the number 2 rod bearing is the first to spin? Any other signs of oil starvation?
No other signs that's I've seen so far. Gonna do some more digging into it this weekend. Part of me just wants to run emery cloth over the journal, replace bearings and drop it back in for now. This motor has been bored .040 over, so I don't think the block has any more rebuilds left in it. It was purchased cheap ($500) from someone that said all the proper work had been done during rebuild, but he never put it in his car or started it (lost his job and ran out of money). Probe pistons, Eagle Rods and ARP hardware were in it, so I just assumed it was all good. I was doing an auto to R154 swap last year, so I decided to drop this engine in at the same time. All was fine for the first 1,000 miles, until it wasn't.

I'm not giving up on the 7M just yet. I've got another motor on the garage floor that I can rebuild, too. Maybe once I pay off my Tacoma, I'll start looking at JZ swaps.
 
  • Like
Reactions: debrucer

suprajim54

Member
Authorized Seller
Joined
Sep 2, 2009
Messages
142
Location
Dallas, Texas
I pulled off #5 rod cap to see what size bearings were on the crank. I found a sliver of metal was starting to eat into that bearing too.
IMG_20200214_125616.jpg
Oil pump looked ok internally and i dont see metal anywhere but the bottom end. But it did have some stuff on the pickup screen.
20200213_202224.jpg
20200213_173902.jpg
I'm gonna pull the crank out this weekend and see if i can take it to a shop to get cleaned, polished and sized for bearings.
 

debrucer

It's about the journey
Authorized Seller
Contributor
Joined
Dec 11, 2006
Messages
365
Location
San Diego, California, United States
This scares the hell out of me :( since I think I've done all the right stuff on my engine rebuild. I'm talking over years. This looks to me like a case of somebody not cleaning their block after machine work... not pulling all the right plugs...

Here's a post with a lot of good tips... including one about trapped, hidden metal shavings....

Here's a link http://www.supramania.com/forum/threads/7m-assembly-tips.5631/
 

suprajim54

Member
Authorized Seller
Joined
Sep 2, 2009
Messages
142
Location
Dallas, Texas
I can't find metal anywhere but the bottom end, but the rod and main bearings were all showing some scoring. Here's the rod bearings and journals.
IMG_20200214_191836.jpg IMG_20200214_191307.jpg
Mains (minus #4, couldnt get cap off easily) #5 has some metal on the journal
IMG_20200214_222720.jpg
Maybe there wasn't enough assembly lube used during the rebuild or it dried up while it sat for a year after i bought it? Last year, i pulled off the pan and installed a new oil pump shimmed with washers, AZ oil line and resealed the pan. I guess i should've inspected it closer.

BTW, I hope you guys don't mind me posting here. I don't want to clog up the thread, but figure any action on the forum is welcome.
 
Last edited:
  • Like
Reactions: YotedmyMA70

sinistar_xx

Active Member
Authorized Seller
Joined
Dec 28, 2018
Messages
106
File this under "what did you fail to do to your Supra today". Got a set of spring compressors and took my first crack at trying to remove the hat off the strut they were on (shipped to me that way, so no opportunity to try and remove the top nut while still mounted in the car). But ran into the problem where the shock shaft just spins around and there is no notch in the stud on top for an allen wrench. I tried flipping one of the compressors around so it could act as a counter force, but that didn't work too well and I was afraid of breaking the compressor tool. A friend recommended backing off on the spring compression so the spring would put force on the hat, so I suppose I'll try that next. What doesn't help though is that the table the vise is mounted on is not bolted to the floor, so it's also a bit wobbly when trying things like this.

supra spring strut.jpeg
 

alcyon

Active Member
Authorized Seller
Joined
Jun 15, 2017
Messages
139
Location
Kuala Lumpur
File this under "what did you fail to do to your Supra today". Got a set of spring compressors and took my first crack at trying to remove the hat off the strut they were on (shipped to me that way, so no opportunity to try and remove the top nut while still mounted in the car). But ran into the problem where the shock shaft just spins around and there is no notch in the stud on top for an allen wrench. I tried flipping one of the compressors around so it could act as a counter force, but that didn't work too well and I was afraid of breaking the compressor tool. A friend recommended backing off on the spring compression so the spring would put force on the hat, so I suppose I'll try that next. What doesn't help though is that the table the vise is mounted on is not bolted to the floor, so it's also a bit wobbly when trying things like this.

View attachment 83084
Use a locking grip plier to clamp the shaft from under the spring. If you are changing the shocks and gonna throw the old ones anyway..
 
  • Like
Reactions: sinistar_xx

sinistar_xx

Active Member
Authorized Seller
Joined
Dec 28, 2018
Messages
106
Thanks for the tip. Yeah, planning to toss the shocks and just keep the springs. I will need to get that type of plier though. I suppose I could also try moving the whole thing down and putting the hat in the vise jaws instead of the shock tube.
 

sinistar_xx

Active Member
Authorized Seller
Joined
Dec 28, 2018
Messages
106
Okay, success with the spring removal. I had my doubts, but a combination of a PB Blaster soak and locking pliers made quick work of it. 3 more to go.

supra strut done.jpg
 
  • Like
Reactions: alcyon

Piratetip

Far From Maddening Crowds
Staff member
Super Moderator
Authorized Seller
Joined
Dec 30, 2005
Messages
1,955
Location
MKE, WI
Pulled the Supra out of garage storage, put it back on insurance.
Put a new LN2 AGM battery in, checked out a few other things.
Aired the tires back down to normal psi and went on a short drive tonite.
Fun fun car, miss it after driving the DD all winter.
Didn't see any issues, all normal.
Driving it to work as much as possible now again!
Gotta put some miles down on it.
 

Piratetip

Far From Maddening Crowds
Staff member
Super Moderator
Authorized Seller
Joined
Dec 30, 2005
Messages
1,955
Location
MKE, WI
Don't know who remembers but I was looking for 1 front Tokico illumina shock to complete my set of 3 awhile back. (That I spent months locating)
Finally found that 1 front shock, 2 years later....!
Plus it is a pair!
Woo!

Now I have 2 complete sets of new old stock Tokico Illumina TEMS shocks :D
One set already on the car, one backup set in storage.

 

sinistar_xx

Active Member
Authorized Seller
Joined
Dec 28, 2018
Messages
106
Since the stock exhaust was completely rust-welded at the connections, I had a shop install the HKS LET-T16 exhaust. Although, I can't really provide good feedback on how it sounds and performs yet, because since I also asked that the downpipe gaskets be replaced that the same time, that introduced a new can of worms in the rusty system. While the installer was able to get the nuts to back off a bit, he didn't think he could get them off fully without breaking the manifold studs, so we decided to button that back up and address that another day. However, that attempt jostled things enough that now there's a horrible, VW-like sound coming from the DP to manifold connection upon acceleration.

Also, the since the new magnaflow cat was a bit longer than the stock cat, the HKS portion of the exhaust could not line up properly, so he had to shorten and re-weld some of the piping on the cat itself.

So the downpipe gasket problem will have to wait for a while. If I'm reading the exhaust schematic correctly, the dp to manifold studs can be replaced on their own, if necessary.
 

yhatzee89

Joe Yantz
Authorized Seller
Joined
Aug 31, 2012
Messages
994
Location
Montgomery, AL
Sorry I'm super late to the post, but that's a sweet dash! Where did you get it from?
came factory in my limited

That's a digidash. They're rare, but one pops up every once in a while. From what I've read, they're a bitch to wire in properly. They look pretty sick once they're done though.
there is a guy whose done it, but it’s an EXTREMELY difficult fabrication process

Its a left hand drive car. These were stock in Japan. I am guessing his car is a 1J he had imported.
bingo

I just bought a set of truck lights also. I haven't started hooking them up yet, but I thought they were plug and play.
ive used a set of knock off trucklites off Amazon with good results, name brand trucklites should be plugNplay and not need the polarity to be reversed unlike my knock offs