Video: Turbocharger Wastegate Actuator Service - Engine Builder Magazine

Video: Turbocharger Wastegate Actuator Service

Whether it’s a diesel or gas engine, the turbocharger will have a wastegate. This video is sponsored by MAHLE.

The wastegate on a turbocharger prevents over-boost conditions and helps to reduce turbo lag.

The wastegate can be controlled by a vacuum actuator or an electronic solenoid. Both systems require a preload adjustment of the rod attached to the arm on the wastegate. If the rod is not adjusted when the actuator or turbocharger is replaced, it can cause the valve to leak or not open enough. Andrew Markel discusses how to diagnose a wastegate actuator and perform a pre-load adjustment. This video is sponsored by MAHLE.

You May Also Like

Dave Schroeder’s 872 cid Pro Mod Nitrous Engine

Dave Schroeder and John Ens have been at the drag-and-drive game for a long time. They’ve seen a thing or two and certainly experience3d a thing or two when it comes to this category of racing, and the 872 cid Pro Mod Nitrous engine built by Reher-Morrison is a build that stands out from the

Dave Schroeder and John Ens have been at the drag-and-drive game for a long time. They've seen a thing or two and certainly experience3d a thing or two when it comes to this category of racing, and the 872 cid Pro Mod Nitrous engine built by Reher-Morrison is a build that stands out from the crowd, but is also very competitive. We got to speak with John Ens about the nitrous engine's set up in this episode of Engine of the Week!

Matt Stutzman’s 540 cid Supercharged Big Block Chevy Engine

We got a chance to spend significant time with Matt Stutzman during the 2023 PRI Show. He’s a Paralympic archer born without arms who’s now setting his sights on Top Sportsman drag racing. We caught up with him in the PennGrade1/DA Lubricants booth to get the details of his 540 cid big block Chevy engine,

Wagler’s New Billet Duramax for Drag-and-Drive

Jeremy Wagler and his team at Wagler Competition Products have become well-known for their diesel work, and specifically the shop’s enhancements for Duramax engines. Well, Jeremy and his team have taken another step forward by introducing an all-billet Duramax geared for drag-and-drive competition. We caught up with Jeremy at PRI 2023 to get the full

Demon Motorsports’ Turbocharged Toyota 2JZ Engine

It was hard not to noticed Damon Elff’s Toyota Supra and its turbocharged 2JZ engine during Sick Week 2024 as it was basically the only Supra there, and the 2JZ made some wicked sounds at the start line. We got a chance to speak with Damon, who owns Demon Motorsports, about his Supra/2JZ combo and

JBR Engines Shop Tour

JBR Engines is 4-cylinder central, and we love it!

Other Posts

Stuffing a Supercharged 572 cid SMX Engine in a Porsche 928

For Danny Humphreys, drag racing is a progressive disease. Ever since he watched Tom Cruise outrun a pimp in a 928 Porsche, he’s wanted the car for himself. As soon as he got one, he pulled the engine and the horsepower has gone up from there. Today, Danny has a supercharged 572 cid SMX engine

Indy Cylinder Head’s Supercharged 588 cid Hemi Engine

We’ve been following Indy Cylinder Head and the engine work Ken Lazzeri for quite some time. We got a chance to speak with Ken on the final day of the PRI show when he was kind enough to walk us through the details of several of the engines they had on display, including this bracket

Ken Lazzeri Hemi Engine
Logan Yelton’s Turbocharged 5.9L 12-Valve Cummins Engine

During last year’s Ultimate Callout Challenge, Logan Yelton’s ’93 Dodge truck stood out as we walked through the pit area. We got a chance to speak with Logan about his company Loganbuilt and the 5.9L 12-valve Cummins engine under the hood of his vintage Dodge truck. See what went into the build in this Diesel

Diesel Daydreams at R&R Engine and Machine

We’ve know R&R Engine and Machine owner Bryan Menke for quite some time. He’s just down the road from our HQ in Akron, OH, so we recently stopped in to see what was new at the shop, which specializes in light, medium and heavy-duty diesel engine work. There’s literally nothing R&R can’t handle, so check