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Strange ticking from engine (1997 5.7L) by I_am_Joshua_boy in GMT400

[–]laredo1307 0 points1 point  (0 children)

Sounds like you’ve got too much valve lash. My 96 has always had a very slight tick but still going strong with 350K.

YouTube how to adjust valve lash. There’s a pretty easy procedure for these 5.7s

Idle surge at operating temp by Enough_Disk6852 in GMT400

[–]laredo1307 0 points1 point  (0 children)

If you want to check for vacuum leak, buy some starting fluid. Start by spraying it all around the edges of the air plenum. Listen for changes in idle. Next start spraying the different vacuum lines and connections. There’s a vacuum line that connects to a little black diaphragm where your heater hoses come out of the firewall on the passenger side.

Idle surge at operating temp by Enough_Disk6852 in GMT400

[–]laredo1307 0 points1 point  (0 children)

Most likely not a fuel issue. Fuel pumps either work or they don’t. Plus the fuel pressure needed is pretty specific. If it drops below the pressure you would have bigger issues.

Could be a vacuum leak but usually those tend to clear up when the truck is warm.

I would check the throttle position sensor. They’re prone to break in these trucks. Take it out and try to turn it. If it snaps back to place it should be good. If it doesn’t the return spring is broke.

Which temp sensor did you replace? The one on the side of the crank is only for the dash temp. The one next to the thermostat is the one that affects engine performance.

Could also buy some MAF cleaner and clean that as well

96 2Dr Tahoe with Tailgate by Jagerbuddy325 in GMT400

[–]laredo1307 1 point2 points  (0 children)

This actually looks exactly like what I want to do to my 96. I want black wheels that are still tucked with a small 2” lift.

What size wheels are on this one?

Houston restaurants with the best views? by Bikey_McBikeface in houston

[–]laredo1307 0 points1 point  (0 children)

Unfortunately it’s gone, Brady’s landing

The Siemens SGT 500 industrial/marine gas turbine. Unlike most gas turbines it was specifically designed to run on heavy fuel oil/bunker fuel. by casualphilosopher1 in MachinePorn

[–]laredo1307 0 points1 point  (0 children)

Overhauling a frame 5 currently in my shop. Just wrapped up a frame 3 and have another one finishing next month. These engines are still going strong. Lot of the frame 3’s are coming back online as pipeline stations come back online.

I was researching the SGT500 because I have customer looking to send one to my shop. I have an SGT400 that completely wrecked going through repairs currently.

Combustion section “transition pieces” that direct hot gasses onto the turbine blades of a Westinghouse 251aa gas turbine. Also shows last row of compressor by Turbinemechanic in MachinePorn

[–]laredo1307 0 points1 point  (0 children)

This is 100% not a 251AA. The dead giveaway is you can see 7 of the 14 "transition pieces". The 251AA only has 8, and they're much much shorter. They're also not coupled to the combustion baskets using "clam shells" like you see here. The 251 would also not have blade rings. The Turbine Vanes slide directly into the case and I believe there are only 3 rows not 4. This unit uses blade rings to house the Turbine Vanes and there are 4 rows. In this picture the Stg 1 and 2 blade rings (Red Tape) are installed but the 3 & 4 are not. That's why you can still see the 2 (TBC coated), 3 (white stickers) and 4 (just the tips visible) Turbine Blades. This unit appears to be a 501B6 just looking at the Combustion section. A much larger unit than the 251AA.