Jumped 3 links on timing chain!!
01-09-2013 | 11:22 AM
#76
Joined: 12-30-07
Posts: 14,331
Likes: 197
From: NEPA
I like what Mr. Powell had to say about replacing the springs with 75lbs. I have the supertech's 78lbs that I bought in Oct 2011. The day they were installed upon starting up the car, is when I had first EVER heard the cold start noise and eventually leading up to chain slapping noise. My Motor has been built and will all be done by the end of the month. I had my machine shop machine the head to match the springs. I also had to buy all new timing components. One of the bolts that is located on the head near the chain(Intake side) was sheared off by the chain and fell into the oil pan. When we found this I was super happy that it didn't go anywhere else like THE CRANK as that could have been bad news. '
Also, I read somewhere on the first page I think, someone mentioning Performance AutoWerks Beefier tensioner. Yes, I got it and its installed but haven't had the chance to test it since I'm currently soldering my 5th injector into the car and finishing up with a few other things. Once I break her in and all I'll let you know.
Mr. Powell, your comment on going with 75lbs intrigue me and got me thinking about possibly getting 75lbs. I mean, are 78's overkill? I can understand guys with larger Turbochargers getting stronger springs for a higher powerband but what about for a BNR where I would be reving at most 7400?( As of right now since I haven't dyno'd and haven't seen where the BNR dies off, ultimately that is where I'll set the redline).
I have so many pics to share of my experience with all you but I'm currently in the middle of the ocean and our internet is...well of gay decent so uploading them would be a nightmare, but the first chance I get to upload them when I get to J-pan, I will. Cubaniche, thanks bud for all your help man. You were nice enough to take my call and chat about it. Great guy!!!! I'll call you when I get to Hawaii.
You know, I've done everything to match things and have the head modified for the springs, replaced all Lash Adjusters and Rockers, replaced a Valve, New Timing components, Valve stems seals etc and just seeing more and more people having similar problems once you make twice the HP as stock or so really gets me nervous still. I've spent(and I'm sure all of you have) a pretty penny building my engine and what not. I'd had for something(one component) to go wrong again or something. I guess you pay to play.
Also, I read somewhere on the first page I think, someone mentioning Performance AutoWerks Beefier tensioner. Yes, I got it and its installed but haven't had the chance to test it since I'm currently soldering my 5th injector into the car and finishing up with a few other things. Once I break her in and all I'll let you know.
Mr. Powell, your comment on going with 75lbs intrigue me and got me thinking about possibly getting 75lbs. I mean, are 78's overkill? I can understand guys with larger Turbochargers getting stronger springs for a higher powerband but what about for a BNR where I would be reving at most 7400?( As of right now since I haven't dyno'd and haven't seen where the BNR dies off, ultimately that is where I'll set the redline).
I have so many pics to share of my experience with all you but I'm currently in the middle of the ocean and our internet is...well of gay decent so uploading them would be a nightmare, but the first chance I get to upload them when I get to J-pan, I will. Cubaniche, thanks bud for all your help man. You were nice enough to take my call and chat about it. Great guy!!!! I'll call you when I get to Hawaii.
You know, I've done everything to match things and have the head modified for the springs, replaced all Lash Adjusters and Rockers, replaced a Valve, New Timing components, Valve stems seals etc and just seeing more and more people having similar problems once you make twice the HP as stock or so really gets me nervous still. I've spent(and I'm sure all of you have) a pretty penny building my engine and what not. I'd had for something(one component) to go wrong again or something. I guess you pay to play.
I haven't taken the car for a test spin yet, but I can def say they are more than enough.
I'll have to dig up the photo I took comparing the stock springs to my supertechs.
01-09-2013 | 01:11 PM
#78
Ive only heard of two companies that make them for the 2.0 ecotec. Bates and Jesel. And they are like 100 bucks a pop LOL I dont know how necessary they are though as it seems to be a valvespring issue...and not even on all builds. Just a small percantage of the total amount of built LNFs out there.
I wanna say 40rty looked into this maybe? Or that AyertonSena guy, cant remember.
40rty:
Def hit me up when your back stateside bro!
I wanna say 40rty looked into this maybe? Or that AyertonSena guy, cant remember.
40rty:
Def hit me up when your back stateside bro!
01-09-2013 | 01:42 PM
#79
Senior Member
Joined: 01-26-10
Posts: 947
Likes: 0
From: Toronto
What would be cool is a pic of the upgraded werks tensioner vs stock. The first time my tensioner went I am prett sure part of it was broken off and rattling around in there lol.
I have also heard a rumour that the chain needs to be pre-greased during install for it to hold up. I'm not a mechanic though clearly! lol
I wonder what zzp has to say about this? You'd think they'd be the ones going through chains like no tomorrow.
I have also heard a rumour that the chain needs to be pre-greased during install for it to hold up. I'm not a mechanic though clearly! lol
I wonder what zzp has to say about this? You'd think they'd be the ones going through chains like no tomorrow.
01-09-2013 | 01:49 PM
#80
Ive only heard of two companies that make them for the 2.0 ecotec. Bates and Jesel. And they are like 100 bucks a pop LOL I dont know how necessary they are though as it seems to be a valvespring issue...and not even on all builds. Just a small percantage of the total amount of built LNFs out there.
I wanna say 40rty looked into this maybe? Or that AyertonSena guy, cant remember.
40rty:
Def hit me up when your back stateside bro!
I wanna say 40rty looked into this maybe? Or that AyertonSena guy, cant remember.
40rty:
Def hit me up when your back stateside bro!
What would be cool is a pic of the upgraded werks tensioner vs stock. The first time my tensioner went I am prett sure part of it was broken off and rattling around in there lol.
I have also heard a rumour that the chain needs to be pre-greased during install for it to hold up. I'm not a mechanic though clearly! lol
I wonder what zzp has to say about this? You'd think they'd be the ones going through chains like no tomorrow.
I have also heard a rumour that the chain needs to be pre-greased during install for it to hold up. I'm not a mechanic though clearly! lol
I wonder what zzp has to say about this? You'd think they'd be the ones going through chains like no tomorrow.
Last edited by mrbelvedere; 01-09-2013 at 01:49 PM. Reason: Automerged Doublepost
01-09-2013 | 02:00 PM
#81
chains last forever.
there are pictures just search on here. I can show you
What would be cool is a pic of the upgraded werks tensioner vs stock. The first time my tensioner went I am prett sure part of it was broken off and rattling around in there lol.
I have also heard a rumour that the chain needs to be pre-greased during install for it to hold up. I'm not a mechanic though clearly! lol
I wonder what zzp has to say about this? You'd think they'd be the ones going through chains like no tomorrow.
I have also heard a rumour that the chain needs to be pre-greased during install for it to hold up. I'm not a mechanic though clearly! lol
I wonder what zzp has to say about this? You'd think they'd be the ones going through chains like no tomorrow.
Last edited by Powell Race Parts; 01-09-2013 at 02:00 PM. Reason: Automerged Doublepost
01-09-2013 | 02:16 PM
#82
Cmiller:
Yeah I didnt clear the head like you did for the supertechs. It was close but they didnt touch at all from what I could tell when spinning the CAMs.
Ford:
Sorry to hear it sounded worse man. When you go to do the work tonight pull the CAMs off and see what the lash adjusters look like. That should tell you wheter or not you have to pull the head. Looking forward to finding out what your issue is.
And BLRT:
Like Ford said, considering the crazy amount of ppl out there with these mods and the relatively low amount of reported issues like this, I would say you most probably dont have anything to worry about. I think it comes down to the particular engine itself and how it was cast or any other variable you want to stick in there as causing these failures.
Yeah I didnt clear the head like you did for the supertechs. It was close but they didnt touch at all from what I could tell when spinning the CAMs.
Ford:
Sorry to hear it sounded worse man. When you go to do the work tonight pull the CAMs off and see what the lash adjusters look like. That should tell you wheter or not you have to pull the head. Looking forward to finding out what your issue is.
And BLRT:
Like Ford said, considering the crazy amount of ppl out there with these mods and the relatively low amount of reported issues like this, I would say you most probably dont have anything to worry about. I think it comes down to the particular engine itself and how it was cast or any other variable you want to stick in there as causing these failures.
01-09-2013 | 02:20 PM
#83
01-09-2013 | 03:13 PM
#85
I dont need to anymore LOL The damage was done and I ripped the head off back in August and replaced with a new one all stock. To the naked eye they looked fine, were they close? YUP LOL Who knows, maybe with the engine on and the CAMs spinning and me revving the **** out of them to 7k caused all my issues....
01-09-2013 | 03:23 PM
#87
01-09-2013 | 03:29 PM
#88
I wonder if the base circle of the lnf cams has anything to do with the lash adj failures
01-09-2013 | 03:36 PM
#89
ive got 2 sets of bates solid lash adjusters the only reason im contemplating using them is ive had a couple of lash adj failures on my lsj and the new springs are 98lbs on seat and 280lbs @ .550
I wonder if the base circle of the lnf cams has anything to do with the lash adj failures
I wonder if the base circle of the lnf cams has anything to do with the lash adj failures
01-09-2013 | 04:43 PM
#91
Thread Starter
Senior Member
Joined: 05-19-09
Posts: 2,633
Likes: 0
From: Austin, Texas
01-09-2013 | 07:02 PM
#92
01-09-2013 | 08:24 PM
#93
01-09-2013 | 09:22 PM
#98
01-09-2013 | 09:41 PM
#100
Senior Member
Joined: 05-15-10
Posts: 3,997
Likes: 2
From: South Charleston, WV
^^Have to agree there. Now I do think we're pushing the envelope a bit on stock lash adjusters many times. The multiple times I have checked my head I have noticed collapsed lifters and have replaced the lifters about 3 times in my head. If your lifters have no spring at all to them they are junk. Jesel wouldn't be a bad upgrade if they weren't so expensive. Now you would have a noisy valvetrain...