|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
12-23-2020, 11:49 PM | #21 |
Senior Member
Join Date: Jan 2016
Posts: 2,097
|
Re: Topics one should cover in a "new head" walkthrough video
Jack brings up an interesting question. How many are using a 6.1 or higher head feel you have to go with a mechanical advance?
Alex is using NU-Rex. Any others, feel you have to go mechanical? With my 6.1 Snyder, just once and a while do I have a knock. If I do, I adjust it. I kinda look at the Nu-rex as just one more failure point. |
12-24-2020, 05:49 AM | #22 |
Senior Member
Join Date: May 2010
Location: VA
Posts: 1,410
|
Re: Topics one should cover in a "new head" walkthrough video
I'm using the stock manual advance with my 6:1, but it does require attention in hilly country. It becomes habitual with driving it several times a week and hour or more long trips.
|
Sponsored Links (Register now to hide all advertisements) |
|
12-24-2020, 07:52 AM | #23 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,353
|
Re: Topics one should cover in a "new head" walkthrough video
I got the Nu-Rex a couple of years ago (when I still had the stock head) because my wife drives the car occasionally and I wanted to reduce the number of things she has to keep track of.
|
12-24-2020, 09:54 AM | #24 |
Member
Join Date: Aug 2010
Posts: 72
|
Re: Topics one should cover in a "new head" walkthrough video
I had a blown head gasket soon after my motor was rebuilt. I replaced it, and soon had a scored piston. When we took the engine back apart, I noted the water hole passages were not drilled all the way through the casting on the new high compression head. I am not sure if this was a contributing factor to the problems or not, but I asked the vendor to send me a different head. It was better, but still did not have the water holes drilled out properly. although it was different water holes than the first head. I then had 3 heads on my bench, and the only one with the water holes drilled out properly was the original stock head. I drilled/ chased out the holes myself on one of the high compression heads, which is not hard to do and have not had any additional problems.
__________________
Mike |
12-24-2020, 09:59 AM | #25 | |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,353
|
Re: Topics one should cover in a "new head" walkthrough video
Quote:
|
|
12-26-2020, 06:54 AM | #26 |
Senior Member
Join Date: Jan 2016
Posts: 2,097
|
Re: Topics one should cover in a "new head" walkthrough video
Sponsored Links (Register now to hide all advertisements)
|
12-26-2020, 07:58 AM | #27 |
Senior Member
Join Date: Feb 2011
Location: Lincoln, Nebraska
Posts: 1,908
|
Re: Topics one should cover in a "new head" walkthrough video
Something that I do to protect the paint on a newly painted head while going through the torque in process is to put an o-ring around each head nut to keep the socket from marring the paint.
__________________
Dave / Lincoln Nebraska |
12-26-2020, 09:24 AM | #28 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,353
|
Re: Topics one should cover in a "new head" walkthrough video
He wouldn't say, but he sent me a picture of the face of the defective head and it looked like a 5.5 head. Can't be sure who made it. I think we should exercise this kind of diligence no matter who the source is.
|
12-26-2020, 11:53 AM | #29 | |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: Topics one should cover in a "new head" walkthrough video
Quote:
|
|
12-26-2020, 11:30 PM | #30 |
Member
Join Date: Aug 2010
Posts: 72
|
Re: Topics one should cover in a "new head" walkthrough video
It was the 1/4 hole between pistons 3 and 4 that was not drilled out fully into the water jacket. On my second HC head, a different 1/4 hole was not drilled out.
Back 2 pistons (3 and 4) were scored. The scored areas face each other and both face the divider between cylinders 3 and 4 where the water hole is located. The scored pistons were just the start of a long, very expensive, and frustrating problem. I don't know for sure what all caused the problem, but I recommend checking the water holes the head to be sure they are open before installation.
__________________
Mike |
12-27-2020, 12:13 PM | #31 |
BANNED
Join Date: Dec 2019
Posts: 1,196
|
Re: Topics one should cover in a "new head" walkthrough video
Piston to bore clearance is critical,too tight and the piston will score.Tough break Mike..
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|