3800 how hard to change valve springs

[smug]

I have the modded stock 1.9 rockers and i believe my car is getting valve float. At about 5,500 rpm the car studders, falls on its face, feels like it hit a rev limiter in every gear. I have two options, go back to stock rockers or change the springs. How hard it is to change the springs? My car is a 2001 with 80K miles on it. I would rather keep the 1.9's and change the springs if it is not that much of a pita.

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[Turbocharged400sbc]

I have the modded stock 1.9 rockers and i believe my car is getting valve float. At about 5,500 rpm the car studders, falls on its face, feels like it hit a rev limiter in every gear. I have two options, go back to stock rockers or change the springs. How hard it is to change the springs? My car is a 2001 with 80K miles on it. I would rather keep the 1.9's and change the springs if it is not that much of a pita.
[/b]

your looking to do on car or are you pulling the heads for some pocket porting and backcut valves?



on car it isnt bad at all...but off car i get to use my really nice compressor



if you put on your rockers you can do it



you might want to throw your stock rockers on temporarily and see whether that affects the valvefloat issue....you know verify that is your problem....

 

[smug]

I was wanting to do this with the heads on the car. I ordered the rocker install kit from zzp and it has a set of v/c gaskets and gm rocker bolts. I install the stock rockers for a very short amount of time to see if the issus goes away and i reuse anything, or am i out of v/c gaskets and bolts?

 

[BumpinGTP]

You can reuse the gaskets but not the bolts. Valvesprings are and easy job with the right tools. Do you have an air compressor and a valvespring compressor?

 

[smug]

I have a air compresser but no valve spring compresser. Where should I look for a valve spring compresser

 

[Sinister Drag Designs]

dont use the TTY bolts get some re-usable ones. less chance of breaking and you know you have to remove them at some point why pay for another set later.

 

[nitrous]

Get the prybar style compressor. Available at most auto parts store.

 

[imported_PaceCarBoozer]

get yourself a little powerful magnet, like the kind thats the size of a pen to retreive lost bolts and such. It makes getting the valve spring retainers out sooooooo much easier. There are two valve spring compressors, the prybar kind and one that screws in from the top (not sure how to describe it). I like the one that screws it down from the top cause it leaves both of your hands free, and is more controllable. They can both be found at an auto parts store for fairly cheap. You will also need the thing (don't know what to call it) that threads in to where your spark plug is and then connects to the air compressor so the valves don't fall in. It's an easy process.
CJ

 

[syP]

Get the prybar style compressor. Available at most auto parts store.
[/b]

x2


that thing makes things SO much easier..

 

[smug]

i will get the pry bar style compresser. I have a set of head off a 05 gt engine with 2K miles on it. I think I am going to use thoses springs. I should be able to run stock springs to 6K with out a problem. I called zzp and asked if they are intchangeable and they are. I must have a worn spring having 80K on them.

 

[sr71_rgl]

i will get the pry bar style compresser. I have a set of head off a 05 gt engine with 2K miles on it. I think I am going to use thoses springs. I should be able to run stock springs to 6K with out a problem. I called zzp and asked if they are intchangeable and they are. I must have a worn spring having 80K on them.
[/b]

I had the same exact symptoms when I owned my GS. Turned out to be plugs...

 

[smug]

i dunno if it would be the plugs because i am not getting any misfires when scanning with the PT. I will get a set of plugs though, there cheap.

 

[smug]

I just got done changing valve spring and went with stock springs off my 05 gp motor with 2K on it. I used them becaue they will be usless with my cam and all that stuff when i build it up. I also changed the plugs because i had to take them out anyways and there cheap. I just got back from takin it out for a short drive and couldnt really got on it hard being in town and with the slick streets, but i got past 6K rpm with no issues. Hopefully as i get to test it out tomorrow everything will be all good. That number 2 cylinder is a pita with all that crap in the way :lolsign: