Schema
09-19-2013, 10:01 PM
Sup guys!, havent been on here since 2008. Recently picked up PRISTINE 240sx vert with a blacktop SR. Kid who I bought it from did the swap but couldn't get it running so I picked it up.
Fixed a list of issues -timing was off, cas wheel bent, intake cam keyway stripped, missing rocker shim, etc
So, Today,- I need suggestions where to look to get this puppy started. Here's where I am-
180psi across all cylinders
I'm so damn confident the timing/CAS is spot on. I'm guessing if I was off on the timing chain I wouldnt be getting good compression. And yes, the CAS was set at TDC on the compression stroke, verified by the cams at 10 and 12,2nd line from the left on the crank, a compression tester on cyl 1, and 9 links between the marks on the cam gear. I'll still post pics in the morning .
Here's my known symptoms-
When the motor turns over, there are bouts of hesitation (a load on the motor) followed by a gunshot sounding backfire shortly after
With the fuel fuse OUT, the motor turns over like butter with only the sweet sound of compression
Thats it. EARLY on after correcting the timing, I did a quick test start and got running for the first time since the swap- like crap, but did fire up. Any gas given while it was running would cause the car to stall and was otherwise idling rough/shaking motor.
So, if you have any ideas or even a checklist, I'll look in to everything suggested and follow up with what I find.
9/20 heres where Im at today:
http://i.imgur.com/2S7xKAOl.jpg
http://i.imgur.com/ZL2xn1fl.jpg
TDC on the compression stroke
http://i.imgur.com/jUHxe9Sl.jpg
10 and 12
http://i.imgur.com/e8qaTckl.jpg
9 links between the marks
http://i.imgur.com/6C2D1JHl.jpg
aligned (camera wasnt facing dead on, but those two match perfectly)
http://i.imgur.com/IdNlFspl.jpg
and the cas floating right in the middle. tape is covering a crack in the housing, the wheel inside is fine
http://i.imgur.com/j0xa0Qbl.jpg
And a video. Sorry for the heavy breathing. I'm a fatso and its humid as balls today
erOyMhRTzGQ& (http://www.youtube.com/watch?v=erOyMhRTzGQ&)
Fixed a list of issues -timing was off, cas wheel bent, intake cam keyway stripped, missing rocker shim, etc
So, Today,- I need suggestions where to look to get this puppy started. Here's where I am-
180psi across all cylinders
I'm so damn confident the timing/CAS is spot on. I'm guessing if I was off on the timing chain I wouldnt be getting good compression. And yes, the CAS was set at TDC on the compression stroke, verified by the cams at 10 and 12,2nd line from the left on the crank, a compression tester on cyl 1, and 9 links between the marks on the cam gear. I'll still post pics in the morning .
Here's my known symptoms-
When the motor turns over, there are bouts of hesitation (a load on the motor) followed by a gunshot sounding backfire shortly after
With the fuel fuse OUT, the motor turns over like butter with only the sweet sound of compression
Thats it. EARLY on after correcting the timing, I did a quick test start and got running for the first time since the swap- like crap, but did fire up. Any gas given while it was running would cause the car to stall and was otherwise idling rough/shaking motor.
So, if you have any ideas or even a checklist, I'll look in to everything suggested and follow up with what I find.
9/20 heres where Im at today:
http://i.imgur.com/2S7xKAOl.jpg
http://i.imgur.com/ZL2xn1fl.jpg
TDC on the compression stroke
http://i.imgur.com/jUHxe9Sl.jpg
10 and 12
http://i.imgur.com/e8qaTckl.jpg
9 links between the marks
http://i.imgur.com/6C2D1JHl.jpg
aligned (camera wasnt facing dead on, but those two match perfectly)
http://i.imgur.com/IdNlFspl.jpg
and the cas floating right in the middle. tape is covering a crack in the housing, the wheel inside is fine
http://i.imgur.com/j0xa0Qbl.jpg
And a video. Sorry for the heavy breathing. I'm a fatso and its humid as balls today
erOyMhRTzGQ& (http://www.youtube.com/watch?v=erOyMhRTzGQ&)