Unprofessional head job consequences?
Thread Starter
Intermediate
Joined: Sep 2013
Posts: 45
Likes: 1
Unprofessional head job consequences?
So timing chain went kaboom and therefore valves went kaboom
and I stuck some new valves in there and new springs with old retainers and old valve guides and never touched the seats (except quick cleaning) nor did I machine anything.
Is something gonna go kaputt again or will there be premature wear, etc? Please elaborate..
and I stuck some new valves in there and new springs with old retainers and old valve guides and never touched the seats (except quick cleaning) nor did I machine anything.
Is something gonna go kaputt again or will there be premature wear, etc? Please elaborate..
Thread Starter
Intermediate
Joined: Sep 2013
Posts: 45
Likes: 1
Also am wondering, I took off the cover plate on the center of the block between the heads, yeah the one for which you should have absolutely no reason to take off ahem.
Can anyone check the torque specs on that for my dumbass, very much appreciated, and can I reuse the gasket?
Can anyone check the torque specs on that for my dumbass, very much appreciated, and can I reuse the gasket?
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
Did you lap the new valves to the seats using a lapping compound? If you did, I'd say you are good to go. Sounds like you've worked on heads before. If not, just make sure the valve retainers are seated good.
However, the thing I'd worry about is why did the timing chain go? Did you have an underdrive harmonic balancer? Also, be sure to take a close look of where the valves touched the pistons to make sure there are no cracks. Good luck.
However, the thing I'd worry about is why did the timing chain go? Did you have an underdrive harmonic balancer? Also, be sure to take a close look of where the valves touched the pistons to make sure there are no cracks. Good luck.
Thread Starter
Intermediate
Joined: Sep 2013
Posts: 45
Likes: 1
Did you lap the new valves to the seats using a lapping compound? If you did, I'd say you are good to go. Sounds like you've worked on heads before. If not, just make sure the valve retainers are seated good.
However, the thing I'd worry about is why did the timing chain go? Did you have an underdrive harmonic balancer? Also, be sure to take a close look of where the valves touched the pistons to make sure there are no cracks. Good luck.
However, the thing I'd worry about is why did the timing chain go? Did you have an underdrive harmonic balancer? Also, be sure to take a close look of where the valves touched the pistons to make sure there are no cracks. Good luck.
The chain, I have a manual and love to double clutch it a gear down, makes me feel like a racing driver but apparently that flexes the chain and snaps it quickly according to other forumposts.
I think I actually did feel the chain flex, as soon as I downshifted (very smoothly btw) and got on the throttle, the power didn't get straight to the ground, it took a split second. I thought it was the traction control at the time, new car you know.
Anyway the pistons are nicked albeit not cracked. Looking at similar posts of other peeps in this situation and their pics I've decided to leave the pistons in.
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
Also am wondering, I took off the cover plate on the center of the block between the heads, yeah the one for which you should have absolutely no reason to take off ahem.
Can anyone check the torque specs on that for my dumbass, very much appreciated, and can I reuse the gasket?
Can anyone check the torque specs on that for my dumbass, very much appreciated, and can I reuse the gasket?
Thread Starter
Intermediate
Joined: Sep 2013
Posts: 45
Likes: 1
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