ATS housing + TM actuator - surge is gone, but so is midrange - Ford Powerstroke Diesel Forum
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Old 02-16-2013, 03:04 PM
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ATS housing + TM actuator - surge is gone, but so is midrange

Hi guys,

I finally threw in the ATS housing and the TM actuator, the surging is now gone. Everything is sealed up, TM is adjusted to 23lbs, and the low and mid range just feel blah now.

Prior, I had pretty bad surge, but the thing would pick up in an instant.

The turbo wheel is stock btw. Is it common to see the edge come off the midrange with this setup?
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Old 02-16-2013, 03:16 PM
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Originally Posted by rodeoj View Post
Hi guys,

I finally threw in the ATS housing and the TM actuator, the surging is now gone. Everything is sealed up, TM is adjusted to 23lbs, and the low and mid range just feel blah now.

Prior, I had pretty bad surge, but the thing would pick up in an instant.

The turbo wheel is stock btw. Is it common to see the edge come off the midrange with this setup?
Not possible unless you have another problem. The TM is closed in low to mid range, so it couldn't slow the spool unless it is bound up and the wastegate is partially open, but then top end would also suffer and surge would be worse.

Guessing you opened up a boost leak somewhere.

Bob
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Old 02-17-2013, 09:04 AM
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I've tracked this down... there is no real spring tension on the spring. I can compress it with one hand. It takes less than half the force to compress this spring than it does to manually pull the factory actuator to open. Cranking the adjustment nut to put near full travel still isn't as resistant as my factory actuator.

Pivot hole in elbow piece wasn't machined to fit, the anchor piece wasn't machined correctly, it had to be drilled out not to bind, and now the spring.

By removing the adjustment nut and spring, and using bailing wire to wire shut the waste gate the pep was back in the old girl. My guess is its the spring at this point.

I will be pulling this off the truck this morning and hopefully returning it for credit on something else.

I know lots of people have great success with this, and maybe this is just a one-off perfect storm because Diesel Site has a great rep, but I give up.

John
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Old 02-17-2013, 09:34 AM
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I wonder if you have the correct TM, there is two of them, one i believe is longer than the other,
Early turbo and superduty turbo ?
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Old 02-17-2013, 11:37 AM
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The spring tension is soft. It uses this tension because of the leverage of the actuator arm. It takes less spring tension because of the arm and this allows for the fine adjustment of the TM. The spring is not the issue.

We did find that a few mounting plates left with a smaller hole in them. It needs to be 5/16" and it will work perfect. You can either drill the hole, or I'll send you a new one, but that is the only problem.

I can help you get this right if you call me. I can help you fix it, or send you a new unit altogether that I checked out myself.

Sorry for the trouble. Bob
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Old 02-17-2013, 01:09 PM
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Hi Bob,

I'll give you a call tomorrow and we'll get it squared away. Thank you.

John
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Old 02-17-2013, 01:16 PM
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Quote:
Originally Posted by DIESELSITE View Post
The spring tension is soft. It uses this tension because of the leverage of the actuator arm. It takes less spring tension because of the arm and this allows for the fine adjustment of the TM. The spring is not the issue.

We did find that a few mounting plates left with a smaller hole in them. It needs to be 5/16" and it will work perfect. You can either drill the hole, or I'll send you a new one, but that is the only problem.

I can help you get this right if you call me. I can help you fix it, or send you a new unit altogether that I checked out myself.

Sorry for the trouble. Bob
Customer service, like a Boss
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