I think I saw this car driving around.. did you put a black hood on it?

 

lol, you saw it eh?

 

 

went to start the car last night, fired for a second or two then CLANK CLANK CLANK dead

what a boring way to kill an engine

anyone had that happen before? drove fine the previous day

 

heh, guess a s4 n/a block with ~300k on it doesn't like 10 psi of boost and 8000+ rpm regularly?

 

Correct me if I'm wrong anybody, but all that white...

Lean...

 

10 months later...

The engine above appears to have failed simply because of high mileage and stupid 3-piece seals, the top half of an apex seal basically fell out

Ended up buying a ready-to-run turbo engine, dropped it in... and it ran like *** because i used the wrong rear counterweight

Pulled the transmission, installed the right weight and all was well again. Drove the car regularly right through to December.

Spent the last few months doing some more electrical work, stripping all the sound deadening tar from the floor, relocating the battery to the rear bin... fired up the engine the other day for the first time since Dec... and it turned the oil into a milkshake.



Pulled the oil pan and found coolant seeping through between the rear rotor housing and rear iron



Looks like i need a rebuild before i'll be driving it this year

 

a few pics of the batt setup and cleaned up floor. both have been finished since these were taken, but you get the idea...

 

so - cause of the failure: the goddamn tension bolts weren't torqued... like at all. slightly over hand tight

 

out



and open. you can see the broken seal here, which is where the leak was



all apart



at first glance everything looks ok other than this one housing. how bad are these chatter marks? they're only really along the bottom and they are worst near the center, and taper off near both edges

 

posted a separate thread HERE about my concerns with the 'chattered' housing

 

turns out the bearings weren't so great either haha

 

25+ lbs of tar removed, and ~14 lbs of useless wiring removed

 

made this last night, hope it works

 

engine runs! timing was wacky, i couldn't get it set quite right so i thought I had installed the CAS gear backwards. Pulled the front cover but the gear is correct

so that was a huge waste of time and i'm still not sure why i can't get the timing mark to line up

 

seems like a solid car. have fun with it man!

 

Lots of work. Hope you get it on the road soon.

 

its back together, been driving the last few days. engine seems great now, but my new 'good' transmission is ****. bearing noises all over the place and everything just feels loose

guess the next project is rebuilding the original transmission!

 

When you make updates you really make updates

I feel your pain on the coolant seal. I bought a 6port engine to do a quick +T on and it was weeping coolant externally between the rear iron and housing. I tried EVERYTHING to put a bandaid on it, and in the process junked everything but the rotating assembly (basically the only thing of value in a stock 6 port anyway )

 

sweet thanks for dropping by today !

 

Glad you did this engine yourself, you'll know it's good then. Nicely done!

 

If anyone has any input on my https://www.rx7club.com/2nd-generati...-woes-1091452/ or https://www.rx7club.com/megasquirt-f...-idle-1090632/ it would be greatly appreciated! These little problems are driving me nuts

 

winter updates!

these will be going on


also v-mount


xcessive manufacturing 'Auto Chassis to Manual S4 Trans - Conversion Cross Member' installed

 

Just catching up to this thread nice work !
Have you figure it out ?

 

never really figured out what i did wrong in the first place, but when i put everything back together it was all good