Getting ready to remove the head
02-22-2016, 07:58 PM
#1
Getting ready to remove the head
There are a couple of things in the build book I wanted to ask about.
The build book suggest reusing the old piston rings. Is it better instead to lightly hone and use new rings?
Is there a good way to clean the valve train/timing chain before reassembly?
The build book also suggest using the old rod bearings.
Anything special to consider when installing valve springs?
Thanks.
02-23-2016, 01:07 AM
#7
Parts replacement is contingent on what you are doing... why is the head coming off?
I'd suggest leaving the rings unless you are gonna have the block properly honed. The factory finish is very good, and unless there's scoring or damage, you probably won't improve the seal with new rings and a handheld refinishing.
I'd suggest leaving the rings unless you are gonna have the block properly honed. The factory finish is very good, and unless there's scoring or damage, you probably won't improve the seal with new rings and a handheld refinishing.
02-23-2016, 08:02 AM
#8
Parts replacement is contingent on what you are doing... why is the head coming off?
I'd suggest leaving the rings unless you are gonna have the block properly honed. The factory finish is very good, and unless there's scoring or damage, you probably won't improve the seal with new rings and a handheld refinishing.
I'd suggest leaving the rings unless you are gonna have the block properly honed. The factory finish is very good, and unless there's scoring or damage, you probably won't improve the seal with new rings and a handheld refinishing.
What's your opinion on the rod to crank bushings?
02-23-2016, 10:00 AM
#9
Anyone know what type of rings that come with the Wiseco pistons from TTR? I am trying to select the appropriate grit to deglaze the cylinder walls with. I plan on using a flex hone brush and right now I am thinking 240 or 320 grit. Anyone with experience know what grit to use for sure? The abrasive type is silicone carbide.
Edit: I might just reuse the old rings. Is there really anything wrong with that? What about the old rod to crank bearings?
Edit: I might just reuse the old rings. Is there really anything wrong with that? What about the old rod to crank bearings?
Last edited by jdbaugh1; 02-23-2016 at 10:17 AM.
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02-23-2016, 08:10 PM
#16
Because it reduces the distance between the combustion chamber/valve seats and the piston. I've had a couple people offer but it's usually too much trouble for them since it requires reinstalling everything with clay and then turning the engine by hand. I'm sure I'll find out eventually.
02-23-2016, 08:53 PM
#17
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Because it reduces the distance between the combustion chamber/valve seats and the piston. I've had a couple people offer but it's usually too much trouble for them since it requires reinstalling everything with clay and then turning the engine by hand. I'm sure I'll find out eventually.
02-23-2016, 09:29 PM
#19
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Only problem is I was in a bit of a rush to tear it down and inspect the block before I had to go to work, chain was old and worn out anyways and everything is getting replaced so I just cut it with bolt cutters...
Got everything off and completely stripped down to nothing in under a half hour though haha
Got everything off and completely stripped down to nothing in under a half hour though haha
02-24-2016, 10:31 PM
#24
Haven't done an ecotec head myself yet, but I bought the kent moore tool designed for them, it's pretty nice.
I bought a cheap motorcycle valve compressor kit to use on my toyota head, as most normal ones i had were too large. The kit was about $40 on ebay and had a bunch of small size ends that would be perfect for small automotive valve applications.
I bought a cheap motorcycle valve compressor kit to use on my toyota head, as most normal ones i had were too large. The kit was about $40 on ebay and had a bunch of small size ends that would be perfect for small automotive valve applications.
02-25-2016, 09:53 AM
#25
Found this one and in the comments section at least 2 people have used these with 2.2L ecotecs so if should work pretty nicely. Not cheap, but cheaper than the Kent-moore specialty tool. Just an FYI in case any other dummies want to try this at home.