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02-26-2016, 07:26 PM
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#1
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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Disassembly for rebuild has started.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
Last edited by jimbo486; 02-26-2016 at 07:33 PM.
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03-10-2016, 12:01 AM
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#2
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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Disassembly continued today. For having clocked somewhere around 500k miles, I was amazed to find that the internals look great. With the exception of a few cam lobes having some imperfections. If it weren't for those and if I didn't know otherwise, I'd say the cam and tappets were new.
Injection pump removed.
Cam and oil pump out.
Tappets knocked out.
I noticed some scarring on a couple of cam lobes. Not sure if this happened while pulling it out or what exactly. I wasn't forceful with anything at all. Later on, I noticed similar imperfections on a couple other lobes.
Rockers disassembled for machining required for ARP studs.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-13-2016, 03:06 PM
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#3
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Name: SmokeSmacked02
Title: Green Behind the Ears
Status: Not Here
Join Date: Sep 2011
Location: Franklin Tn
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Posts: 79
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Cool post, looks like it's coming along good. I have yet to see a seal break away like that but the inner part of the seal is what holds your oil in is why you didn't have a substantial amount of oil loss.
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03-15-2016, 06:16 PM
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#4
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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The cylinders are getting bored .020" over. Crank and rods checked out good and will get standard bearings.
Strange thing about the oil pump I bought. The body of it doesn't match the old pump or the receiver bore in the block. The machine shop came up with 3.31" as an OD on the new pump. The old pump, I measured and came up with 3.43". Nearly an 1/8" difference.
I bought the higher flowing (and pressure?) Cummins pump that is said to work for any '89-'02 engine. Is this acceptable or what? I'm inclined to exchange it for the exact replacement of the old one.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-15-2016, 06:35 PM
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#5
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Name: 97rada
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
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Posts: 5,410
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You did blow the gasket btw. That's why it looks like if blew towards the cylinder. Comment when they blow
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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03-15-2016, 06:41 PM
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#6
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Name: BC847
Title: Too Much Time
Status: Not Here
Join Date: May 2006
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Posts: 851
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Quote:
Originally Posted by jimbo486
I bought the higher flowing (and pressure?) Cummins pump that is said to work for any '89-'02 engine. Is this acceptable or what? I'm inclined to exchange it for the exact replacement of the old one.
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Run the later, higher volume pump. Your existing pressure regulator will maintain the pressure you're use to seeing.
I run it in mine with no issues.
__________________
Original owner of a VE fueled 1993 W250 ClubCab.
Silencer ring MIA, str8 pipe with 10" exhaust tip, 250psi boost gauge, ghost-lights 'n truck-nutz. K&N air filter next (if my grades are good enoufh).
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03-15-2016, 07:38 PM
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#7
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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Quote:
Originally Posted by 97rada
You did blow the gasket btw. That's why it looks like if blew towards the cylinder. Comment when they blow
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Thanks, Austin. So then 2, 3 and 4 were close to it by the looks of the top side of the gasket. Those pieces of the seal weren't stuck to the head when I looked. I'll have to look at the block side of the gasket on those ones.
Quote:
Originally Posted by BC847
Run the later, higher volume pump. Your existing pressure regulator will maintain the pressure you're use to seeing.
I run it in mine with no issues.
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I used the part number that Cummins Performance Parts provided on their website. Supposedly, some guys were getting bad pumps from CPP some time ago? Therefore, Cummins must have had a bad batch at one time. Or the pump number is incorrect altogether? Cummins P/N for reference is 4939587. Didn't supersede at Cummins when I ordered it.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
Last edited by jimbo486; 03-15-2016 at 07:40 PM.
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03-16-2016, 09:27 PM
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#8
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Name: cummins724
Title: BREAKING $HIT
Status: Not Here
Join Date: Apr 2007
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Posts: 8,568
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We had a small batch that failed and no problems since we sent them back and got a new batch of pumps. No more issues that we have seen.
__________________
CPP DIESEL
Edge-PPE-EFI LIVE-H&S-II-Airdog-Fass-Smarty-ARP-AFE-Autometer-Isspro-MBRP-DDP-South Bend Clutch-Valair-CUSTOM INJECTORS-DIY BUMPERS
www.CPPDIESEL.com
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03-16-2016, 10:10 PM
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#9
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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Quote:
Originally Posted by cummins724
We had a small batch that failed and no problems since we sent them back and got a new batch of pumps. No more issues that we have seen.
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Thanks. I PM'd you yesterday regarding the general fitment.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-18-2016, 06:31 PM
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#10
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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I was wondering about having an aluminum or stainless steel sleeve made to make up the differences. Is it even worth the hassle? Why would the body be a smaller diameter than the receiving bore in the block? Surely that can't be how higher flow was accomplished. Seems like the flutes in the stator would be opened up to create more flow. Maybe I'm wrong in my thinking.
Anyhow, the head is done and was shipped out today. Hamilton 165lbs. springs, 3-angle valve job and o-rings using .062" stainless steel wire. The machine shop is just waiting on parts. The block should be done before the end of next week.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
Last edited by jimbo486; 03-18-2016 at 06:36 PM.
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03-18-2016, 06:45 PM
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#11
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
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Posts: 4,715
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How much ring protrusion will you end up with?
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03-18-2016, 07:54 PM
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#12
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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I'm told .012".
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-19-2016, 12:13 AM
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#13
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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South Bend flywheel surfaced.
New pilot bearing.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-21-2016, 03:34 PM
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#14
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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I forgot to mention, the head also got a mild port and polish.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-23-2016, 07:12 PM
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#15
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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As for the head studs, is bottom tapping necessary for clearing the valve covers only or both that and more thread engagement and clamping force? The instructions say it's necessary, for the rocker arm head bolts anyway, if "the location of the rocker arm pedestal head studs are above the specified installed height of 6.615-6.665 in."
There's no other mention of bottom tapping the rest of the holes but I see the recommendation of doing so here all the time. I assume for even clamping across the entire surface? I was going to have the machine shop bottom tap the holes for me but held off until I could measure the installed height since it sounds like not all engines will need bottom tapping. Just looking for confirmation but I think the recommendation is bottom tapping ALL of the holes.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-24-2016, 07:26 PM
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#16
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Name: Zeppelin654
Title: Too Much Time
Status: Not Here
Join Date: Nov 2011
Location: Clearfield
Member`s Gallery
Posts: 843
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I would bottom tap and also machine the rocker pedestals
__________________
12 crew cab G56
96 12V 2.6 "Grim Reaper" SOLD
95 12V "Steamrola" SOLD
92 One Gen SOLD
Quote:
Originally Posted by BRE
Hoodstacks solve everything. They solve all the worlds problems.
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03-24-2016, 07:45 PM
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#17
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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The pedestals have been machined. Is the recommendation to bottom tap ALL holes or just the ones for the pedestals as ARP says? I think I'd prefer to do all of them to keep it uniform.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-24-2016, 08:07 PM
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#18
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Name: SmokeSmacked02
Title: Green Behind the Ears
Status: Not Here
Join Date: Sep 2011
Location: Franklin Tn
Member`s Gallery
Posts: 79
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I'm not 100% sure but I don't believe you need any clearance for the studs if they require the rockers to be machined??? And from what I have always been told for each size bolt there is a certain amount of threads that are needed for maximum holding strength of the bolt so any more threads doesn't really help you any but I guess it doesn't really hurt at the same time.
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03-24-2016, 09:58 PM
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#19
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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The instructions say bottom tapping is necessary for the rocker arm head bolt bores if "the location of the rocker arm pedestal head studs are above the specified installed height of 6.615-6.665 in." That dimension is from the deck of the block to the top of the stud.
I'll call ARP tomorrow.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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03-24-2016, 10:05 PM
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#20
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,715
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If you don't bottom tap the studs will all be protruding at different heights. A different amount of threads will show on each stud with the nuts tight. It's easy and takes 20 minutes. Fastenal got me a tap, just get the longer one.
Call me ocd or whatever but I couldn't stand to look at them expensive studs if they weren't all equal with the nuts tight lol
Last edited by 95cummins5.9; 03-24-2016 at 10:08 PM.
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