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Old 04-18-2018, 08:53 PM   #1
Tony R
 
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Issueís with 4K governor springs

I got a call from buddy the other night who attempted to put some 4K springs in his sons truck. He said he was having issues with the truck not wanting to idle and if you put it in gear, even holding the rpms up to 1500 it would stall. I told him a couple things to try like adding a couple clicks and adjusting the idle screw, but none of it helped. So I run over to look at it and realized that he took the large idle spring out. I said thereís your problem. So I put the idle springs back in and tightened them one soft click and three hard clicks and left. He had to go to work so I left he said he would put it the rest of the way back together. He calls me the next day and says the problem is still there. I go run over and I tried adjusting them every way I could think of. Nothing made a difference. I came home and researched for the problem and found a lot of people were having the same trouble with the pac brake spring kit. I told him to pull them out and put the stock ones back in. He calls me today and he says itís still doing the same thing even with the stock springs. Iím at a lose here. I have installed about ten sets of these spring kits and never had a ounce of trouble. Nothing looks bent. He said there wasnít no shims in it. I noticed there was shims under the large idle spring, is all I found. I doubt think he actually took the measurement like the directions said, so I canít go back on that. I hate working on stuff after somebody has messed with it. Iím just trying to help a ok pulling buddy out. Sorry so long maybe somebody has seen this before.
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Old 04-18-2018, 08:56 PM   #2
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Quote:
Originally Posted by Tony R View Post
I got a call from buddy the other night who attempted to put some 4K springs in his sons truck. He said he was having issues with the truck not wanting to idle and if you put it in gear, even holding the rpms up to 1500 it would stall. I told him a couple things to try like adding a couple clicks and adjusting the idle screw, but none of it helped. So I run over to look at it and realized that he took the large idle spring out. I said thereís your problem. So I put the idle springs back in and tightened them one soft click and three hard clicks and left. He had to go to work so I left he said he would put it the rest of the way back together. He calls me the next day and says the problem is still there. I go run over and I tried adjusting them every way I could think of. Nothing made a difference. I came home and researched for the problem and found a lot of people were having the same trouble with the pac brake spring kit. I told him to pull them out and put the stock ones back in. He calls me today and he says itís still doing the same thing even with the stock springs. Iím at a lose here. I have installed about ten sets of these spring kits and never had a ounce of trouble. Nothing looks bent. He said there wasnít no shims in it. I noticed there was shims under the large idle spring, is all I found. I doubt think he actually took the measurement like the directions said, so I canít go back on that. I hate working on stuff after somebody has messed with it. Iím just trying to help a ok pulling buddy out. Sorry so long maybe somebody has seen this before.
Possibly lost the large shim, its probably flying around in the governor housing right now. If that's the case pull it out before it hangs good
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Old 04-18-2018, 09:02 PM   #3
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The large shim around .030 is on the idle spring and is in there.
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Old 04-18-2018, 09:19 PM   #4
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The large shim around .030 is on the idle spring and is in there.
Good deal. I've had good luck with the bosch 4ks from pdd.
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Old 04-18-2018, 09:38 PM   #5
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What I can’t figure out, is why it’s not running right with the stock springs back in. They put a fass system on it and did the springs. I’m seriously scratching my head here. I always had good luck with the ones from piers diesel years ago. I think they was Bosch springs. I hear there pac brake brand now. I could get my piers 4K springs to turn more then cds 5ks back in the day.
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Old 04-18-2018, 09:41 PM   #6
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What I canít figure out, is why itís not running right with the stock springs back in. They put a fass system on it and did the springs. Iím seriously scratching my head here. I always had good luck with the ones from piers diesel years ago. I think they was Bosch springs. I hear there pac brake brand now. I could get my piers 4K springs to turn more then cds 5ks back in the day.
You measure protrusions on the studs?
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Old 04-18-2018, 09:51 PM   #7
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I didn’t, but i wasn’t the guy who took it apart. When I was trying to get the 4ks to work I tried them anywhere from .040 -.060 with no change.
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Old 04-19-2018, 07:38 AM   #8
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PAC brake springs suck .. peak diesel uses the old pdr design I have installed over 200 sets not one issue .. PAC brakes aren't the same
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Old 04-19-2018, 07:43 AM   #9
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Don't take this as an insult, but you know there's two sets of gov springs right? 180deg apart.
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Old 04-19-2018, 04:32 PM   #10
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peak, pdr, pacbrake, all the same now. pdr sold their design to pacbrake. been on the phone with them a few times trying to get it all ironed out, thats what he told me.
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Old 04-19-2018, 06:14 PM   #11
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Originally Posted by CorneliusRox View Post
Don't take this as an insult, but you know there's two sets of gov springs right? 180deg apart.
No offense taken but yes I do realize there is two sets of springs. As I mentioned earlier I have done several sets of these before. I didn't start the process of installing these. Just got called in after it was screwed up.
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Old 04-20-2018, 12:14 PM   #12
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peak, pdr, pacbrake, all the same now. pdr sold their design to pacbrake. been on the phone with them a few times trying to get it all ironed out, thats what he told me.
Not true. You got some bad info there.
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Old 04-20-2018, 01:58 PM   #13
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I've used a lot of Pac spring kits and they worked fine. I'm sure there's some bad ones out there, I've removed hundreds of kits over the years from cores and some are certainly better than others. It sounds to me like something is hanging up in the governor. Possibly from dropped shim or otherwise. If it's not that, possibly a sticky plunger. Is the engine running smooth otherwise? The governor is functioning normally on a free rev?
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Old 04-20-2018, 08:24 PM   #14
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Not true. You got some bad info there.
I've ordered from peak and pdr, both sent me pacbrake springs, so I called, and thats what I was told straight from the owners mouth.
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Old 04-21-2018, 10:42 AM   #15
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I've ordered from peak and pdr, both sent me pacbrake springs, so I called, and thats what I was told straight from the owners mouth.
I was referring to you saying PDR sold their design to Pacbrake. Not true. I used to run PDR at the time Pacbrake came out with their own GSK. Sure they copied the design, but no $ was paid to PDR & Pacbrake didnít ever use Bosch springs. Same deal with Peak Diesel....ĒHarry" & I used to work together for years at PDR. Peak knows the Bosch spring #ís too & bought machined bases the same way we at PDR did. What Harry is putting together now, I canít tell you. What PDR is doing I can but wonít.
So, not everyone is just a keyboard expert & spread bad info.
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Old 04-21-2018, 09:01 PM   #16
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the **** I got was straight from pdr, and it was pacbrake. its all still in the package and a I can show you the invoice. I called and was told they have pacbrake making their spring kits now, and that they had sold them their design. I also have a bosch set from power driven diesel, and they are definitely two different setups, springs, bases, everything.
Maybe they fed me a story on the design stuff, but they are for sure selling pacbrake **** now.
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