IT's back together and runs right?

 

Buttoning it up now, will be started in a while.

 

Are you up and running now?

 

Just went to run a compression test before I re-loomed the harness, and can;t believe the truck started right up with only the driver's bank ROFL! 118psi compression cold, that's acceptable to me considering the rest are 120-14x. Truck sounded MUCH better. Now it's time to finish buttoning her up I will take a video for 'yall.

 

Runs like a champ!

 

Hey, thanks for getting back to us, and closing the loop, so to speak.

Interesting that it broke a valve spring. Anyone else every hear of breaking one? And what reason for it? Manufacturing defect? Fatigue? Over-revving?

Does that thing have a "tune" in it?

 

Valvespring breakages do happen from time to time on some of the older modulars. It's a material defect in the valvespring wire,and was isolated to a few instances from '96-'00 or so. I know a few people that have had a single spring break,and it's usually an isolated incident with a single spring when it happens.
JL

 

 

This is my wife's daily, no modifications, rev limiter is in place, truck has 105k miles and is a 2000. It's not driven much or hard.


Common problems on a V10 after speaking to several other shop owners:

Excessive thrust wear from towing, they make a +.005" thrust as a repair.

Because of thrust wear, broken flex plate.

Spark plug threads coming out.

Isolated valve spring breakage.

Coils.

Exhaust shroud rattling from a broken spot weld.

And: You're welcome I think I may stick around foa while and see if i can;t help someone else out as a return favor.

You guys can check out my lame website, I really need to finish it as it has been like this for a year haha.

http://www.60inclusive.com

I have all kinds of fun equipment. a lift, 300amp Tig, 90amp MIG, powder coating equipment, ceramic coating equipment, eeprom tuning equipment, flow bench, and have access to my friend's CNC machine shop. I have really created a market for v6 vehicles and hope that the set of heads and custom cam just designed will put the v6 Camaro (69mm turbo) in the single digits this season. I have built 7 turbo kits, several sets of custom headers (both turbo and n/a), ported blowers, iron heads, and aluminum heads, built 10 centrifugal S/C kits for v6 f-bodies, throttle body adapters etc.


Thanks again for all the help, hope this info might help someone in the future


-John

 

I knew about the .005"+ thrust bearings, have suggested that as a possible fix to at least one or two people in the past. One guy had an intermittent crank-sensor problem, because the tone ring was moving too far away from the sensor.

The broken flex plate, I've heard of a few from 1999, and they were not related to crank end-play. The few I have heard of were all F53 motorhomes.

And again, thanks

 

hello im new so here it gos, its a lifter that has failed, pull the valve cover and have a look c, ill bet its on the pass side, im a tech at a small mom and pop shop, have onein rite now that had the same noise, found a bad lifter and two bent push rods, iv done a few of them in the last year, good luck

 

Yup motor homes and towing vehicles (tow trucks etc) that have constant weight on them.

The reason I say the flex plate and thrust are related because on local shop had the same truck in three times because of the flex plate, sent the motor out and the thrust was gone. Once they replaced the thrust, the flex plate never broke again.

 

Thanks. I'm new also, but welcome.

Yeah I am a mom-and pop shop lol, 'cept the wife hasn't started working here (yet hehe).

Today I pulled he radiator because when I picked the motor up, the shroud caught the mounting tab and put a small crack in it - 3m 8223 plastic epoxy worked just fine. Then I cleared the codes, there was a bunch of them from various starts of the engine with some stuff still not plugged in, compression checks etc. Let it run, then scanned again, felt like it has a miss, then the pending code popped up #6 cyl misfire, took a looky and the inj was not plugged back in.

Re-cleared the code, top off all the fluids and she is running better then she ever did. I probably should have changed the plugs, they were a little on the black side, but I'll do that when I replace the intake filter since it disintegrated in my hand and now have a used one from my dead '98 F150 (80psi in #4 and 8, white smoker ).

Brought the truck home today and all the kids were excited to have it back, and I think I saw a tear in the wife's eye she was so happy. They all HAD to ride in it to drop me back here at the shop - even the dog came haha. The truck sat for a couple weeks after I rebuilt the bottom end so I could get some work done that would keep the shop's wallet happy.

 

Congrats Forced Firebird, it was very interesting experience following your story.

 

You mentioned you replaced the rob bearings? I need to do the same thing or buy a new engine. Is there a thread here that explains how replace rod bearings?