problems with lsx 454 please help!!!
problems with lsx 454 please help!!! so i have this motor built runs good for about two weeks then a lifter goes bad and it starts pouring smoke out of the valvecover filter that is in place of the oil cap . got new lifters let them soak in oil overnight and then some put it back together and still same thing tapping and smoking any ideas guys ? appreciate any help yall can offer
When you pulled the heads to replace the lifters, did you inspect the valves? Possible bent valve causing intake reversion?
What is the rest of your PCV setup? Could be a bad PCV valve, I have seen something similar with a bad PCV, but with your breather I am not sure what you are running for the rest of it...
What lifters where you using that failed? Who is your builder and what do they say? What lifter preload are you using? Could the cam timing be off, was the cam degree'd?
Basically, more info please... heheh
What is the rest of your PCV setup? Could be a bad PCV valve, I have seen something similar with a bad PCV, but with your breather I am not sure what you are running for the rest of it...
What lifters where you using that failed? Who is your builder and what do they say? What lifter preload are you using? Could the cam timing be off, was the cam degree'd?
Basically, more info please... heheh
Last edited by Azrael; May 16, 2008 at 09:58 AM.
pcv just breathers on each valve cover that was suggested by the builder. lifters caddy high rev lifters . no bent valves pushrods r good . Texas Speed built the motor .bought it almost 5 months ago and i have had problems with since i got it tired of dealing with them just gonna have to fix it on my own i guess
Last edited by camsom; May 16, 2008 at 11:12 AM.
This is the long-block that made 750 flywheel horsepower on the engine dyno & had no issues at all when the engine shipped & when the engine was dynoed in the GTO.
I personally broke this engine in on the dyno with proper oil & additives for best results. This engine made unbelieveable power on the engine dyno & worked well for months in the GTO making something over 550rwhp in your GTO.
Sorry for the Caddy lifter failing on you, but I got you new lifters, new gaskets & new intake valves on the cylinder that failed.
I never want anyone to have issues with a long-block, but a engine that smoked very very little out of the breather going to crazy smoking after it was taken apart points to something fairly simple IMHO.
I'm not suprised the engine had a hurt valve & retainer after the lifter failed. We had discussed with you that it was important for you to check the valvetrain immediately. Instead of checking the valvetrain & lifters you decided to just demand a set of lifters that weren't installed for several months. We shipped you new caddy lifters 2 months before you ever checked the lifter in the motor & found out it was damaged.
The issue is if a lifter fails you don't typically want to drive around on it for 2 months.
That being said I don't see how the lifter failure would have anything to do with a motor not smoking out the breather before it was taken apart, and then suddenly smoking. Hopefully we'll find something simple & get that thing running for you!
I personally broke this engine in on the dyno with proper oil & additives for best results. This engine made unbelieveable power on the engine dyno & worked well for months in the GTO making something over 550rwhp in your GTO.
Sorry for the Caddy lifter failing on you, but I got you new lifters, new gaskets & new intake valves on the cylinder that failed.
I never want anyone to have issues with a long-block, but a engine that smoked very very little out of the breather going to crazy smoking after it was taken apart points to something fairly simple IMHO.
I'm not suprised the engine had a hurt valve & retainer after the lifter failed. We had discussed with you that it was important for you to check the valvetrain immediately. Instead of checking the valvetrain & lifters you decided to just demand a set of lifters that weren't installed for several months. We shipped you new caddy lifters 2 months before you ever checked the lifter in the motor & found out it was damaged.
The issue is if a lifter fails you don't typically want to drive around on it for 2 months.
That being said I don't see how the lifter failure would have anything to do with a motor not smoking out the breather before it was taken apart, and then suddenly smoking. Hopefully we'll find something simple & get that thing running for you!
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
car was only driven about a week from the first time i called about the lifter because it was my only transportation at the time. The car has been smoking since then. It took you almost two months to get me a set of lifters and were going to be installed the night they finally got here which is when i found the retainer problem. Then it took another two weeks to get the valve changed, head gasket,and a stock rocker arm. Im not trying to bad mouth you just stating the truth because i would finally like to be able to enjoy this motor for the first time since it was bought and thats it!!! trying to get help wherever i can!!!
Last edited by camsom; May 18, 2008 at 08:47 AM.
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Bought the motor very end of december was installed first week of january and tuned had a lifter collapse about a week after that and since then ive just been trying to get parts warrantied. finally got lifters about a month ago and was starting to change them out when i found this pics below. At this time i sent the head off they put in a new valve a new retainer same lock. got the head back and about a week after that the head gasket and the new rocker arm and after putting it together a few days ago it still has a knock and is smoking out the breathe filters on both valve covers and know the exhaust as well. car is parked until i can do a compression test and see whats wrong.
Last edited by camsom; May 19, 2008 at 12:10 PM.
I have never seen that before, but it is definitely the outline of the rocker in the valvespring and retainer. I would say at the minimum you need a new rocker, valve, spring, retainer and keepers.
Is that the same one that collapsed the rocker?
-Geoff
Is that the same one that collapsed the rocker?
-Geoff
car was only driven about a week from the first time i called about the lifter because it was my only transportation at the time. The car has been smoking since then. It took you almost two months to get me a set of lifters and were going to be installed the night they finally got here which is when i found the retainer problem. Then it took another two weeks to get the valve changed, head gasket,and a stock rocker arm. Im not trying to bad mouth you just stating the truth because i would finally like to be able to enjoy this motor for the first time since it was bought and thats it!!! trying to get help wherever i can!!!
the head has already been removed and was sent back to builder he installed a new valve a new keeper and decide to reuse the same lock you see in the picture. i new i had a dead lifter by sound first and then after disassembly. there was no drop in oil pressure cyclinder walls and pistons and pushrods looked fine. weird thing when i pulled the spark plugs every one of the tips were gone. motor has just over 1200 miles