Compression test procedure

[travisd]

I am looking for the procedure to compression test a 4.4 liter lc3. Do I need to take the belt off the supercharger and remove all the plugs? Does the vvt need to be turned of or any procedures for that to get accurate reading. Do I just let the push button start keep trying to crank after full compression is read is there a way to stop the starter after several times turning the engine.

 

[luxuryrules]

Last four steps out of pic are install air duct to TB, install spark plugs, install PCM, and install ignition fuses to the IP fuse block

 

[travisd]

Last four steps out of pic are install air duct to TB, install spark plugs, install PCM, and install ignition fuses to the IP fuse block

Is this the procedure for lc3 v series xlr

 

[travisd]

Is this the procedure for lc3 v series xlr

Do you have the info for a bleed down test

 

[luxuryrules]

Yes, it’s specific to the LC3. I’ll see what I can find for a bleed down test. Is that what is sometimes also called a leak down test?

 

[travisd]

Yes sir that's it. Thanks
Putting some upgrades in the engine and want to check condition first

 

[luxuryrules]

Cool. Hope your findings are all positive and the upgrades go smoothly!

 

[travisd]

Thank you!!!
Do you have the procedure for changing brake pads front and back? Also correct process for bleeding the entire brake system for 2006 v? I'm painting my calipers and changing brake fluid. I just want to make sure there nothing special have to do when removing calipers. And some cars need the abs pump activated with a tech2 while bleeding brakes to get air( or all old fluid) out of the abs module.

I've probably got at least 10 more of these procedure I would like to know if your willing to keep helping. I eventually going to get a dealer service manual just not sure which ones are 100percent complete. Leaning towards a helminc manual. They claim there are literally dealer digital manual converted to paperback. 4 books just for 2006 and $550.

 

[travisd]

Possibly a list of all the fluids that gm recommends for 06 XLR v! Changing all of those also!!

 

[luxuryrules]

Haha I know that feeling!

I’ll look them up. It’s tricky as I can’t get pdf’s, just old school screen shots as you see.

Do you have a tech2 you’ll be using for ABS bleed?

Edit - and do you have a pressure bleeder of some sort?

 

[luxuryrules]

Possibly a list of all the fluids that gm recommends for 06 XLR v! Changing all of those also!!

This one I do have in PDF form - owners manual does a good job with this. Page 6-92 for capacities and 7-11 for specifications (including part numbers). The oil spec was superseded by Dexos1 Gen3.

 

[luxuryrules]

So here are the relevant tidbits, for calipers, pads & rotors.

Fronts: nothing fancy, regular dual piston calipers. Mounting bracket to hub is 175Nm. Clean the mating surface of the hub where it meets the rotor, while you have it off. Caliper guide pin bolts are 31Nm and the banjo bolt is 45Nm.

Rears: single piston caliper but otherwise no difference from front. Same torque specs even.

Fluid: assuming you have pressure bleeder and Tech2, I'll attach pics. Note the sequence of which wheel gets bled is a little unusual for the pressure bleed, then even more fun is that my Tech2 followed a slightly difference sequence when i did the automated bleed.