Motor do over! - Lateral-g Forums

jack67rs · #1 03-21-2009, 02:13 PM

Well, I knew it was a matter of time before I would have to yank the piece of crap out! So called self proclaimed pro engine builder did'nt get this one right, I would love to take it back to him and tell him to fix it. But I don't have any confidence in his ability to get it right. The motor smoked pretty bad on off throttle and down shifting, leaked oil from the back side of the block(wasted my clutch), and the valve train sounded like a singer sewing machine. I kept driving it hoping the rings might seat and I would only have to pull the tranny. And then it started falling on its face, losing boost and power mean while fouling plugs from the blow by. Well when I told the engine builder the problems, he had several excuses such as the afr heads he ordered are junk and the valve seals they used are junk and the valves they use are junk(recommended by him). He did'nt show any interest in getting to the bottom of all this and figuring out what was wrong.

Started tearing things down today and draining the fluids, the oil did'nt look bad. While removing the headers I saw something sticking out of the oil drain and turned out to be part of my Milodon diamond windage screen. can't wait to pull the pan now and see what happened.

And yeah I did a few tests, compression pressures and seemed decent and equal. Leak down test showed some different results, probably a ring problem. I'm going to have someone else tear it apart and I'll probably have them fix it.

Good things from this: I'll beable to really clean the engine bay now! I'm looking to find a better flowing intake and add methanol injection too.

Jack

awr68 · #2 03-21-2009, 02:36 PM

What a bummer Jack!! How many miles are on it?
Won't any Vortech style intake work? I think the trouble of finding a new intake will be worth it!! Best of luck with the rebuild!

**Flash68** · #3 03-21-2009, 04:10 PM

Wow that sucks. You have a gorgeous Camaro. Good luck with rebuild.

As far as his comment on AFR heads being junk, that is ridiculous.

**Spiffav8** · #4 03-21-2009, 06:51 PM

Jack that sucks! lol Sorry to hear it. Hope it's up and running sooner than later.

**camcojb** · #5 03-21-2009, 07:14 PM

Jack, do you know what rings he used in the build?

Jody

Vegas69 · #6 03-21-2009, 09:28 PM

It's all good Jack. You built a solid piece but your engine builder wasn't up to your level. This time it will be right and on par with the car.

jack67rs · #7 03-22-2009, 12:23 AM

Quote:

Originally Posted by camcojb

Jack, do you know what rings he used in the build?

Jody

He's got plasma moly rings marked on the build sheet at $120.00

Ventoso · #8 04-15-2009, 02:55 PM

Quote:

Originally Posted by Flash68

As far as his comment on AFR heads being junk, that is ridiculous.

OOTB, fully assembled AFR heads really aren't all that spectacular. They use crap crap components, and if you trust their supplied springs and don't check the installed height; you're pitching a tent on valvetrain geometry disaster. Their castings are superb, but you really need to take the time after the fact and either have them professionally setup, or do it yourself.

Just what I've heard from Jay Allen @ Camshaft Innovations

jack67rs · #9 04-15-2009, 04:16 PM

Quote:

Originally Posted by Ventoso

OOTB, fully assembled AFR heads really aren't all that spectacular. They use crap crap components, and if you trust their supplied springs and don't check the installed height; you're pitching a tent on valvetrain geometry disaster. Their castings are superb, but you really need to take the time after the fact and either have them professionally setup, or do it yourself.

Just what I've heard from Jay Allen @ Camshaft Innovations

Well be checkin everything this time around, you can be sure of that!

deuce_454 · #10 04-16-2009, 01:02 AM

i have installed a pair of TPIS prepared afr heads ane they werent that wonderfull.. they changed the plug angle and the weld plug came out of one of the old plug holes.. when i sent pictures they claimed to eb able to see from the tan color of the combustion chambers that the timomg was wrong so they refused to exchange them.. so ill never buy AFR again...

the issues with your motor sounds like the ring fit was off or the bores were too smooth... and perhaps he neglected to grease the rear seal prior to instalation..

anyway, good luck with the rebuild