Should have adjusted Valves a long time ago!
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From: Quinton, New Jersey (middle of nowhere)
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From: Ymir,BC
Its all true,for sure
but imho valve clearances are pretty much routine maintenace in everything I own almost, I'd say that I check my valves more than my oil sometimes...one of the best ways to stay on your top end!
also:
new car hauler = new water pump & rad
but imho valve clearances are pretty much routine maintenace in everything I own almost, I'd say that I check my valves more than my oil sometimes...one of the best ways to stay on your top end!also:
new car hauler = new water pump & rad
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From: McCook, Nebraska
I should check mine but it's pretty quiet and starts good. I know the dozer has a 4BT and it's pretty bad. When I get home this winter I think I am going to lash them for dad before I leave again. It ticks pretty bad.
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From: texas
I have a 93 dodge, I was planning to get my valves adjusted, but with all of the other modifications I am going to( turbo, pump turned up, timing bump) do, I was needing to know if it would just be a better choice to get stronger springs. some questions I have- WHAT IS THE SAFE LINE TO DRAW ON THE BOOST PRESSURES THE SPRINGS CAN TAKE?
I am pushing over 30 lbs
I am pushing over 30 lbs
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From: A 5th dimension, beyond that which is known to man.
i wouldnt worry about boost. unless youre running an exhaust break or plan on running over 3500 rpm a lot thats when you think about springs. i just got done changing my valve springs about an hour ago. it was quite easy. you do need a few tools like a 1/2" torque wrench and a valve spring compressor.
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From: Kelowna, BC
From what I understand heavier springs are only needed if you plan on using an exhaust brake or revving the engine to 4000+rpm. Though, if you have the money and time it wouldn't hurt to do, and you have confidence later on if you plan on really pushing .
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From: A 5th dimension, beyond that which is known to man.
Yeah my stock valve springs seemed to be ok, i run my truck up near 3600-3700 rpm. I dont know how long they would last up there though. Its pushing it.
Oh yeah- I did all 12 springs for about 200 bucks and thats with the Cummins brand springs, a spring compressor and a magnet!
Oh yeah- I did all 12 springs for about 200 bucks and thats with the Cummins brand springs, a spring compressor and a magnet!
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From: McCook, Nebraska
A quart of Lucas in the oil quiets it some. The machine has about 10,000 hours on it. We've changed injector o-rings, manifold gaskets, and motor mounts in the last 15 years. I can't remember when we got it but shortly after that the cam broke, so that's the last time it was really opened up.
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From: Brighton CO and Cheyenne WY
Valves float due to a combination of boost and rpm.
Mine started to float after repeated runs down the track running 38 psi and 3500-3700 rpm IIRC.
I changed all 12 to 60# and have run to 4100 rpm pushing 45 psi or so with no problems.
Mine started to float after repeated runs down the track running 38 psi and 3500-3700 rpm IIRC.
I changed all 12 to 60# and have run to 4100 rpm pushing 45 psi or so with no problems.