New Wastegate actuator?

[jeffnzoya]

This morning at 9am I started the dismemberment of my engine/parts in search of my boost robbing exhaust leak. Both joints are loose and obviously leaking alot and both pipes were flopping around while I was removeing the turbo.

Since this is the first turbo I have ever held in my hand's, much less taken off, I don't really know what I have here. This turbo has 180k on it and I was wondering if there is anything I should check/mod/change while she is down.

I have been running my truck without the line hooked to my wastegate. It would only boost 14 with it plugged in. I have been planning to install a new wastegate actuator but now that I have found an obvious boost leak I am wondering if It is needed. Anyone installed a one? Is it worth the $$. BD has one for $150.00.

Jeff.

 

[BIG JOE]

This morning at 9am I started the dismemberment of my engine/parts in search of my boost robbing exhaust leak. Both joints are loose and obviously leaking alot and both pipes were flopping around while I was removeing the turbo.

Since this is the first turbo I have ever held in my hand's, much less taken off, I don't really know what I have here. This turbo has 180k on it and I was wondering if there is anything I should check/mod/change while she is down.

1. Check for any noticeable End play and/or wobble. Inspect the leading edges of the compressor wheel. Your call (?) but now might be the time to install a "Wicked Wheel" ?? Prolly moot but: Use ALL NEW.. O rings & gaskets when you put it back together. A little Never Sieze on the Up & Down pipe joints helps too.

I have been running my truck without the line hooked to my wastegate. It would only boost 14 with it plugged in. I have been planning to install a new wastegate actuator but now that I have found an obvious boost leak I am wondering if It is needed. Anyone installed a one? Is it worth the $$. BD has one for $150.00.

2. Did you plug the W/gate (red) line when you disconected it ? If you did'nt, you could have been loosing boost there. And... Disconnecting the W/Gate will get more boost (?). But... during WOT or heavy throttle demands, Exhaust pressures can open the W/gate... un-controlled ( "lil Factoid no one wants to hear, or believe).

Jeff.

I have a BANKS actuator. I like it. My 2K will build 25 lbs of boost.. no problem, and shots of 30+ if I need it..

 

[jeffnzoya]

Big Joe, Thank you for your reply. I have checked the wheel and it looks fine. There is no slack and it seems to spin freely.

I purchased the gaskit's for the uptube joint. This "never seize", is it like a gaskit material that I spread around the entire joint to help stop leaks?

As far as the actuator, I think I am going to keep the stock one on but would like to adjust it for max boost. Do you know how.

Jeff.

 

[BIG JOE]

Big Joe, Thank you for your reply. I have checked the wheel and it looks fine. There is no slack and it seems to spin freely.

1.

I purchased the gaskit's for the uptube joint. This "never seize", is it like a gaskit material that I spread around the entire joint to help stop leaks?

2. Yes, it's a pipe joint dressing that will.. Never seize. If you apply some to the joint surfaces and bolt threads (?), if you ever have to dis-assemble them again,, they won't be Seized to one another. Good sealant too. Good Stuff.

As far as the actuator, I think I am going to keep the stock one on but would like to adjust it for max boost. Do you know how.

3. Yes. Most stock actuator rod threads are crimped, but you can spray a little penetrating oil (I use PB Blaster, W/mart) on the threads.. Jig it up in a Vise, mark the threads for reference.. then (Go Slooow) adjust the rod >IN<,4 to 6 full turns. ( Your call but..Any more than 4 to 6 turns will defeat the design parameters of the OEM actuator.... In my experience's)

Jeff.

'Coupla 'ol guy izzums ? As you re-install stuff ? Tighter is NOT better.. use the torque specs. And.. as you go forth, in your quest for more Boost... yer guna need some sort of Boost Pressure Relief Valve/devise.... To keep yer PCM from set'n a code, going to a Defuel Mode.. and get'n a CES light. They're available from the SDD site sponcors.

JOE

 

[gunfrk]

Up pipe

My 350 is in the shop having the up pipes replaced with the bellowed pipes. I had planned on having the turbo rebuilt while it was down but was unable to find the desired parts. That eventually lead me to DieselSite.com where I found a mechanical wastegate controller. I really am looking forward to having the old girl back. It sure ran like a screaming ape untill little by little the up pipes started leaking.