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I just had my motor rebuilt and we fired it up for the first time and it sounded good... at idle. However once we revved it up a bit it started to make a really fast nasty ticking noise at only 2500 rpms... its sounds kinda like a woodpecker on crack going nuts inside the head. one thing i noticed since then is that the ticking will start to happen at a lower rpm when cold like between 2k and 2.5k rpms, but when i got the engine warm it wouldnt happen til about 3k-3.3k rpms. I also noticed while driving it under load when it starts to tick it sputters as if it were misfiring or something. I tried revving it past that to about 5-6k a couple times and i couldnt really hear the ticking once it got past that range although im not positive on that since my goddamn exhaust is too damn loud, and i dont want to keep testing it and risking jacking something up.
I pulled codes and the only one that came up was p1259... vtec malfunction code.
This really has me stumped as to why it only seems to tick at a certain range... i took it to a shop for a quick inspection and they said the valve clearances were off a bit so im gonna go ahead and do a valve adjustment tomarrow, but they also said it could be rocker arms. I noticed on my way to the shop my tach was bouncing up and down from 3k to 5k when my motor began to sputter but i felt no change in rpms. I think that may just be a new problem but it seemed to be linked to the ticking... btw where are the rpms for the tach measured... distributor i think??? Anyway the shop wanted to charge me $150 just to inspect the rocker arms, so i want to do the valve adjustments first before i start spending more cash...
Anyway this is really pissing me off cuz i havent even drove my teg in 2 months and when i finally did get to drive it i cant really rev past 3.2k rpms. I have a feeling though that the problem is bigger than the valve clearances and i was hoping maybe somebody has heard of this type of situation before and maybe can give me some advice... any would be appreciated, thanks.
I just had my motor rebuilt and we fired it up for the first time and it sounded good... at idle. However once we revved it up a bit it started to make a really fast nasty ticking noise at only 2500 rpms... its sounds kinda like a woodpecker on crack going nuts inside the head. one thing i noticed since then is that the ticking will start to happen at a lower rpm when cold like between 2k and 2.5k rpms, but when i got the engine warm it wouldnt happen til about 3k-3.3k rpms. I also noticed while driving it under load when it starts to tick it sputters as if it were misfiring or something. I tried revving it past that to about 5-6k a couple times and i couldnt really hear the ticking once it got past that range although im not positive on that since my goddamn exhaust is too damn loud, and i dont want to keep testing it and risking jacking something up.
I pulled codes and the only one that came up was p1259... vtec malfunction code.
This really has me stumped as to why it only seems to tick at a certain range... i took it to a shop for a quick inspection and they said the valve clearances were off a bit so im gonna go ahead and do a valve adjustment tomarrow, but they also said it could be rocker arms. I noticed on my way to the shop my tach was bouncing up and down from 3k to 5k when my motor began to sputter but i felt no change in rpms. I think that may just be a new problem but it seemed to be linked to the ticking... btw where are the rpms for the tach measured... distributor i think??? Anyway the shop wanted to charge me $150 just to inspect the rocker arms, so i want to do the valve adjustments first before i start spending more cash...
Anyway this is really pissing me off cuz i havent even drove my teg in 2 months and when i finally did get to drive it i cant really rev past 3.2k rpms. I have a feeling though that the problem is bigger than the valve clearances and i was hoping maybe somebody has heard of this type of situation before and maybe can give me some advice... any would be appreciated, thanks.