[Z06] Just lost a vlave in cylinder #1
08-31-2015, 01:12 PM
#161
The car is up and running. 
now I just have to bolt all the plastics back on.
we did the non scientific wiggle test and a couple of the exhaust valves had noticeable movement.
I wound up with a Freon leak at the plastic connector where the two metal lines come together. Anybody ever deal with one of these? any advice on replacing this?
As far as charging and clearing the system, I can handle all of that.
BTW, if anybody has their engine out, put in the ZR1 clutch. We did this on my car and the initial test drive felt awesome. I will do a full report after a few hundred miles.
now I just have to bolt all the plastics back on.we did the non scientific wiggle test and a couple of the exhaust valves had noticeable movement.
I wound up with a Freon leak at the plastic connector where the two metal lines come together. Anybody ever deal with one of these? any advice on replacing this?
As far as charging and clearing the system, I can handle all of that.
BTW, if anybody has their engine out, put in the ZR1 clutch. We did this on my car and the initial test drive felt awesome. I will do a full report after a few hundred miles.
08-31-2015, 01:21 PM
#162
Team Owner
What are the details on the replacement engine? Details on heads you decided to use on the new engine?
08-31-2015, 01:31 PM
#163
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St. Jude Donor '07
New block
New lifters
Used crank, rods and pistons – all of which had been measured and checked out by my local machine shop
New stock piston rings
New stock rod and main bolts
New stock rod and main bearings
New oil pump
Used oil pan and pickup tube
Used front and rear cover
Used valley cover
Two stock LS7 heads with stock titanium intake valves and aftermarket stainless steel exhaust valves, both of which have had a valve job as well as aftermarket bronze valve guides installed
New timing chain and cam gear
New head gaskets
08-31-2015, 01:33 PM
#164
Supporting Vendor
- Brand new block from GM
- New lifters
- Used crank, rods and pistons – all of which had been measured, cleans and inspected by a local machine shop
- New stock piston rings
- New stock rod and main bolts
- New stock rod and main bearings
- New oil pump
- Used oil pan and pickup tube
- Used front and rear cover
- Used valley cover
- Two stock LS7 heads with stock titanium intake valves and aftermarket stainless steel exhaust valves, both of which have had a valve job as well as aftermarket bronze valve guides installed by Rex Hutchison Racing Engines in Sacramento
- New timing chain and cam gear
- New oil pan gasket
- New head gaskets
- New rocker arms
- New valve springs, seals and locks
- New spark plugs
08-31-2015, 01:33 PM
#165
Supporting Vendor
Here is the info Chris sent me when he assembled it
New block
New lifters
Used crank, rods and pistons – all of which had been measured and checked out by my local machine shop
New stock piston rings
New stock rod and main bolts
New stock rod and main bearings
New oil pump
Used oil pan and pickup tube
Used front and rear cover
Used valley cover
Two stock LS7 heads with stock titanium intake valves and aftermarket stainless steel exhaust valves, both of which have had a valve job as well as aftermarket bronze valve guides installed
New timing chain and cam gear
New head gaskets
New block
New lifters
Used crank, rods and pistons – all of which had been measured and checked out by my local machine shop
New stock piston rings
New stock rod and main bolts
New stock rod and main bearings
New oil pump
Used oil pan and pickup tube
Used front and rear cover
Used valley cover
Two stock LS7 heads with stock titanium intake valves and aftermarket stainless steel exhaust valves, both of which have had a valve job as well as aftermarket bronze valve guides installed
New timing chain and cam gear
New head gaskets
Sorry, I posted this at the same time you did.
08-31-2015, 02:01 PM
#166
Le Mans Master
Great news OP..
I know it is asking a bit much, but if you could take a brief (< 10 second) cell phone video wiggling the tip of an exhaust valve with the spring off, that would be very helpful to the CF community.
I am glad you have her up and running - would you care to share the approximate costs?
Thanks again.
I know it is asking a bit much, but if you could take a brief (< 10 second) cell phone video wiggling the tip of an exhaust valve with the spring off, that would be very helpful to the CF community.
I am glad you have her up and running - would you care to share the approximate costs?
Thanks again.
08-31-2015, 02:13 PM
#167
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St. Jude Donor '07
Great news OP..
I know it is asking a bit much, but if you could take a brief (< 10 second) cell phone video wiggling the tip of an exhaust valve with the spring off, that would be very helpful to the CF community.
I am glad you have her up and running - would you care to share the approximate costs?
Thanks again.
I know it is asking a bit much, but if you could take a brief (< 10 second) cell phone video wiggling the tip of an exhaust valve with the spring off, that would be very helpful to the CF community.
I am glad you have her up and running - would you care to share the approximate costs?
Thanks again.
I don't care if people know what I spent on it, but I will leave that up to Christopher, just because I don't know if he has other negotiations or past jobs to think about when talking about what he charges.
All I will say is I am very happy with the quality and price.
08-31-2015, 03:01 PM
#168
Le Mans Master
At some point I will take the engine apart,(probably be a few weeks) I don't have a spring compression tool at home, but might be able to come up with one. It is bad enough that you can see it with the springs on.
I don't care if people know what I spent on it, but I will leave that up to Christopher, just because I don't know if he has other negotiations or past jobs to think about when talking about what he charges.
All I will say is I am very happy with the quality and price.
I don't care if people know what I spent on it, but I will leave that up to Christopher, just because I don't know if he has other negotiations or past jobs to think about when talking about what he charges.
All I will say is I am very happy with the quality and price.
..and the whole video of the valve tip moving is more for key vocal CF members' benefit than anything else - we are still looking for that "flying unicorn" head with a failed exhaust valve and in-spec guides. The search continues..
Last edited by Dan_the_C5_Man; 08-31-2015 at 03:08 PM.
08-31-2015, 03:24 PM
#169
Team Owner
Here is the info Chris sent me when he assembled it
New block
New lifters
Used crank, rods and pistons – all of which had been measured and checked out by my local machine shop
New stock piston rings
New stock rod and main bolts
New stock rod and main bearings
New oil pump
Used oil pan and pickup tube
Used front and rear cover
Used valley cover
Two stock LS7 heads with stock titanium intake valves and aftermarket stainless steel exhaust valves, both of which have had a valve job as well as aftermarket bronze valve guides installed
New timing chain and cam gear
New head gaskets
New block
New lifters
Used crank, rods and pistons – all of which had been measured and checked out by my local machine shop
New stock piston rings
New stock rod and main bolts
New stock rod and main bearings
New oil pump
Used oil pan and pickup tube
Used front and rear cover
Used valley cover
Two stock LS7 heads with stock titanium intake valves and aftermarket stainless steel exhaust valves, both of which have had a valve job as well as aftermarket bronze valve guides installed
New timing chain and cam gear
New head gaskets
Looks as if you are staying with a stock engine(cam, pistons, heads, rocker arms, etc) other than the solid stem exhaust valves and the bronze guides.
Sure hope that the replacement engine stays together for you with no more problems with the valves destroying it.
Do you pan to keep the car, or dump it? If you are keeping it, what are your plans for further inspections of the heads after you start getting a few thousand miles on them?
08-31-2015, 04:23 PM
#170
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St. Jude Donor '07
Thanks!!!!
Looks as if you are staying with a stock engine(cam, pistons, heads, rocker arms, etc) other than the solid stem exhaust valves and the bronze guides.
Sure hope that the replacement engine stays together for you with no more problems with the valves destroying it.
Do you pan to keep the car, or dump it? If you are keeping it, what are your plans for further inspections of the heads after you start getting a few thousand miles on them?
Looks as if you are staying with a stock engine(cam, pistons, heads, rocker arms, etc) other than the solid stem exhaust valves and the bronze guides.
Sure hope that the replacement engine stays together for you with no more problems with the valves destroying it.
Do you pan to keep the car, or dump it? If you are keeping it, what are your plans for further inspections of the heads after you start getting a few thousand miles on them?
I figure I will have the heads checked at about 10-15K and see how things look, but that will probably take 2-3 years for me. For now I am just going to drive it and enjoy it.
08-31-2015, 07:04 PM
#171
Instructor
I plan on keeping it for at least a few years, if I get to where I can afford a C7 Z, I might change.
I figure I will have the heads checked at about 10-15K and see how things look, but that will probably take 2-3 years for me. For now I am just going to drive it and enjoy it.
I figure I will have the heads checked at about 10-15K and see how things look, but that will probably take 2-3 years for me. For now I am just going to drive it and enjoy it.
08-31-2015, 08:36 PM
#172
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09-01-2015, 02:40 AM
#173
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St. Jude Donor '07
Pulled my car out in the driveway this afternoon and a few minutes later I got my OnStar report. It says I am just over due for my 25K service LOL. I think a new engine about covers the service requirements.
I also kicked on the AC to see if I had lost all my freon from the oil I seen around the line. I must have lucked out, because its working great.
I also kicked on the AC to see if I had lost all my freon from the oil I seen around the line. I must have lucked out, because its working great.
09-01-2015, 02:54 PM
#175
Supporting Vendor
Pulled my car out in the driveway this afternoon and a few minutes later I got my OnStar report. It says I am just over due for my 25K service LOL. I think a new engine about covers the service requirements.
I also kicked on the AC to see if I had lost all my freon from the oil I seen around the line. I must have lucked out, because its working great.
I also kicked on the AC to see if I had lost all my freon from the oil I seen around the line. I must have lucked out, because its working great.
09-02-2015, 01:51 PM
#176
Team Owner
09-12-2015, 04:01 PM
#177
Instructor
Glad to hear you are up and running again. Christopher did my LS2 to LS7 conversion in 2010 and my car is still running strong, 46k miles later. The used heads already had valve work done. 
09-14-2015, 02:58 PM
#178
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St. Jude Donor '07
I pulled the heads off this weekend. looks like it was the exhaust valve that broke first, then it took out the intake valve and the piston, now the piston is wedged between the crank counter weight and the block. The block is also broke right next to the sleeve.
On the bright side, I have 200miles on the new engine, and it feels great. the only hick up I have had, was a spark plug wire coming off the other day. The battery problem I had has gone away for now, so I think I have a few months before I need to replace it. That will give me time to figure out if I want to go stock or put in an optima.
On the bright side, I have 200miles on the new engine, and it feels great. the only hick up I have had, was a spark plug wire coming off the other day. The battery problem I had has gone away for now, so I think I have a few months before I need to replace it. That will give me time to figure out if I want to go stock or put in an optima.
09-14-2015, 03:58 PM
#179
Le Mans Master
I pulled the heads off this weekend. looks like it was the exhaust valve that broke first, then it took out the intake valve and the piston, now the piston is wedged between the crank counter weight and the block. The block is also broke right next to the sleeve.
On the bright side, I have 200miles on the new engine, and it feels great. the only hick up I have had, was a spark plug wire coming off the other day. The battery problem I had has gone away for now, so I think I have a few months before I need to replace it. That will give me time to figure out if I want to go stock or put in an optima.
On the bright side, I have 200miles on the new engine, and it feels great. the only hick up I have had, was a spark plug wire coming off the other day. The battery problem I had has gone away for now, so I think I have a few months before I need to replace it. That will give me time to figure out if I want to go stock or put in an optima.
You mind shooting and posting a quick video of one of the other exhaust valves / movement please? Thanks!
