Hello All:

Can someone please help me out here? I have a 87 300TD with the Garett T3? turbo and wastgate set up. The rear of the wastegate has a threaded rod protruding from it attached to a longer rod which is connected to the valve assembly. The union of the longer rod to the wastegate has a locknut on it, and the other end is a coupling with a C-clip.

My assumption is that the boost is controlled by how much pressure this valve,/rod assembly applies on to the wastegate spring. This in turn is dialed in through the threaded rod, applying pressure on both the valve and wastegate. Therefore threading the rod assembly so that it applies more pressure outward will raise the boost pressure.

If I'm on the right track so far please let me know.

So the REAL question is how the heck do you get to the locknut on the rear of the wastegate? Is there some trick to adjusting this without taking off the EGR, egr union assembly, crossover pipe etc.???

I have tried to get at it with different angles of attack, tools etc, and when I started for the sledge, I thought, I'd ask

Current boost is 12-12.5psi max. My tech specs call for 13.7 and adjusted towards the high side. I would like to get it to 14psi max. IS this OK for these engines??

Thanks,
Bill

__________________
Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)