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$200 K5 (454 K5 now) *too much junk in the trunk

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My go to additive would be MOA by BG. You have to find where it's sold. Around here a lot of times it's Napa.

I was doing some searching about oil weights and higher lift cams. 10w40 seemed to be a popular choice. I hate going to 15w around here because of the cold winters.

If you want to keep the oil in it now, I'd try adding a can of MOA. If I were changing the oil in that engine I'd switch to Amsoil Z-rod 10w40 or their premium protection 10w40: https://www.amsoil.com/p/amsoil-premium-protection-10w-40-100-synthetic-motor-oil-amo/
 
mrk5 said:
My go to additive would be MOA by BG. You have to find where it's sold. Around here a lot of times it's Napa.

I was doing some searching about oil weights and higher lift cams. 10w40 seemed to be a popular choice. I hate going to 15w around here because of the cold winters.

If you want to keep the oil in it now, I'd try adding a can of MOA. If I were changing the oil in that engine I'd switch to Amsoil Z-rod 10w40 or their premium protection 10w40: https://www.amsoil.com/p/amsoil-premium-protection-10w-40-100-synthetic-motor-oil-amo/
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I didn't like the hot oil dropping down to 18-20 psi hot idling with the 10w30. Guys were talking in another thread that 10psi per 1000 rpm was ok which made me feel slightly better.
Are you thinking the thicker oil is affecting the lifter?
I have seafoam in it right now and will change oil soon.
 
HankScorpio said:
I didn't like the hot oil dropping down to 18-20 psi hot idling with the 10w30. Guys were talking in another thread that 10psi per 1000 rpm was ok which made me feel slightly better.
Are you thinking the thicker oil is affecting the lifter?
I have seafoam in it right now and will change oil soon.
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Yes thicker oil affects the hydraulic lifters.
The thinner the better for those.
 
HankScorpio said:
I didn't like the hot oil dropping down to 18-20 psi hot idling with the 10w30. Guys were talking in another thread that 10psi per 1000 rpm was ok which made me feel slightly better.
Are you thinking the thicker oil is affecting the lifter?
I have seafoam in it right now and will change oil soon.
Click to expand...
Almost every gas powered engine I have carries about 30 psi idle

one exception being my LT 1 Z 28 carries about 15 to 20. It’s always been that way since new
It also ticks if you don’t put 1540 in it
 
I think its a bad lifter personally. Its got sea foam in it for almost 100 miles now. I will change it soon. Its a new motor, I don't think snake oil in a can will make any difference.

If the rockers get adjusted on a new motor with no pressure on the lifters, then are hydraulic lifters really just there to take up slack from wear?
 
No, they’re supposed to pump up and keep the push rod all the way out it’s not supposed to adjust.

You can, however, collapse a new lifter over tightening it. Typically, I set the non roll at 1/2 to 3/4 turn after contact. When in doubt, run the engine and set them using a vacuum gauge
 
Bent77 said:
No, they’re supposed to pump up and keep the push rod all the way out it’s not supposed to adjust.

You can, however, collapse a new lifter over tightening it. Typically, I set the non roll at 1/2 to 3/4 turn after contact. When in doubt, run the engine and set them using a vacuum gauge
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After an oil change, sticking with the 15w40 for now, whats my next move? Pull the valve covers and check the rockers? Swap lifters? Its strange to me that its not consistent, it points to the lifter in my mind.
 
I’d run the valve adjustment running.
Run the nut until it stops slapping. Add 1/4 turn at a time. Watch the vacuum gauge, usually end up around 3/4 turn
 
Bent77 said:
I’d run the valve adjustment running.
Run the nut until it stops slapping. Add 1/4 turn at a time. Watch the vacuum gauge, usually end up around 3/4 turn
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Tightening until the tick stops but not so much as to loose vacuum?
 
Per our conversation
Dont laugh, it was written on the firewall of this car when we bought it

Set it at TDC #1 cylinder and do the first set, then roll it over 360 for the #6 set

IMG_9692.jpeg
 
I was wondering about the tick being intermittent too. It was sort of acting like a guide, the pushrod was poked right through and the stamped ball socket part was sitting next to the nut.
 
HankScorpio said:
I was wondering about the tick being intermittent too. It was sort of acting like a guide, the pushrod was poked right through and the stamped ball socket part was sitting next to the nut.
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I still think it was too tight when assembled and relieved itself wholly
 
HankScorpio said:
I think it was too tight from the machine shop. I just put a rocker on from an '89 parts truck. Sure runs nice now.
It's Jubilee Days up here in Laramie. It's hot, my roofs down and my truck is running good. I'm going cruising at the carnival. :burnout:
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Yes I think so.

Have fun
 
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