1.8-t ran yesterday and today won't start
#1
1.8-t ran yesterday and today won't start
I started my car for the first time yesterday since a recent rebuild. I replaced the pistons and rings, honed the cylinders, and decked the head. Yesterday it was running, though not idling, and revving crappy below 2500rpm, above that and when cruising it was fine. So I assumed it was just that the rings needed to seat. Today I went to start it and it would crank and crank and it I gave it any gas it would backfire extremely loudly. any ideas on where to start with this?
mods are 95 block, weisco pistons, eagle rods, arp hardware, 99 head, ms pnp, gt2871 turbo, 550cc injectors.
mods are 95 block, weisco pistons, eagle rods, arp hardware, 99 head, ms pnp, gt2871 turbo, 550cc injectors.
#8
Here are some pictures...
Intake cam lobes with cyl one at tdc
Exhaust cam lobes with cyl one at tdc
intake cam gear
exhaust cam gear
crank pully
There are 19 teeth on the timing belt between the notch on the intake cam and the notch on the exhaust cam.
As you might notice the crank pully isnt reading that it is at tdc, which confused me because I used the screwdriver in the spark plug hole method to find tdc, so it's perfectly at tdc if I'm not mistaken.
Intake cam lobes with cyl one at tdc
Exhaust cam lobes with cyl one at tdc
intake cam gear
exhaust cam gear
crank pully
There are 19 teeth on the timing belt between the notch on the intake cam and the notch on the exhaust cam.
As you might notice the crank pully isnt reading that it is at tdc, which confused me because I used the screwdriver in the spark plug hole method to find tdc, so it's perfectly at tdc if I'm not mistaken.
#12
Thanks everyone one for the ideas. The cam timing was a little off, but it still was able to run with it like that. The problem was that my tune went bad on ms, I reflashed the firmware and reburned the tune and it fired right up. Then I just had to change the timing a little bit and now it runs like a champ!
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