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If you give it push on the gas peddle will it run?
It will not. Tried no throttle, partial throttle, full throttle all with the same result.
Next step is to try swapping my buddy's known to be functioning injectors. No reason mine should be gummed up/have issues, but it's one more thing to check.
I'll also be tossing a fuel pressure gauge and noid lights back on to re-check everything.
Love your car, can’t wait for you to get it sorted and running!
Thanks much, you and me both!
Checked injector plugs last night with a noid light, all good there. Tonight I'll be putting in known to function injectors to check that off the list of things. Will keep you guys updated.
Well...this happened again. We were talking about what it could be at the garage last night, and had a bit of a thought. For the life of me, I can’t remember if there was a dowel pin on my flywheel. I know there should be, but with this Frankenstein who the heck knows.
The cam timing is spot on, distributor stabbed correctly, all of that was done right and confirmed with John Dougherty, who luckily was the guy that ground my cams.
There’s still obviously a timing issue, and the flywheel being rotated is the next logical thing to check.
Just looked back at a picture of the RMS before I put the flywheel on and there's definitely the dowel pin in there...
Since that box has been checked...I'm wondering if the cam specs I was given are, in fact, incorrect. Might be time to find someone in Houston with a Cam Doctor.
It seems like either that, or buy new cams with known specs...
The 964 has power steering and the 4-6 cam is threaded for the pump. I don’t believe the 1-3 cam is, and we triple checked what cam went where. Going to do a leak down test tonight to see if a valve decided to be uncooperative.
Is there a way to check static timing on this car- like old cars- which is really all I know about... It would be nice to see confirmation that the spark is in the ball park. Not possible the cams are 180 out? Compression check while watching the distributor rotor to confirm that spark and cams are in phase? Sorry for these far reaching ideas- really want to see this thing fire up!!!
Total random thought here...when we set #1 to TDC and installed the cam with the dot up...I wonder if the crank was actually at TDC for #4 and thus when we installed the flywheel the "empty space" on the flywheel to indicate TDC #1 is actually 180* out? I did a quick google image search for RS flywheels and there's only one empty space on the flywheel, which is supposed to line up with the hall sensor for TDC #1 compression if I'm not mistaken...
Every time I build a 4 stroke motor I need to re-remind myself of the basics, they're deceptively complex. I believe what I say below is right, check me tho.
This is not a boxer motor so #1 and #4 will never physically be at TDC at the same time. Prior to linking the cams to the crank, there is no such thing as #1TDC intake vs exhaust. If #1 is at TDC, its at TDC. The gap in the flywheel passes the sensor once per 360 deg and #1 is at TDC once per 360 deg. Therefore the crank position sensor always "knows" where the pistons are. However the motor being 4 stroke the cams rotate at half crank speed and once you connect them you must be aware of the intake vs exhaust TDC relationship. #1 can be at TDC but it can be the "wrong" TDC vis a vis timing events. This relationship is set entirely by when you choose to put the pin in the vernier.
All that notwithstanding, you could certainly have made the mistake you describe.
Thinking through this more, since the crank rotates 360* “in phase” with the cams, the timing gap in the flywheel HAS to pass by at TDC irrespective of which cylinder.
07-14-2020, 03:25 PM
