Machining delivery valves - Competition Diesel.Com

iride813 · 08-01-2018, 08:33 AM

Sorry for all the post past few days, but anyways. I have a set of 191 delivery valves I’ve decided to go ahead and turn them into full cuts. That being said I was wondering what I should turn the diameter down to once shoulder is gone and how accurate they need to be within each other. Thanks!

CorneliusRox · 08-01-2018, 09:24 AM

Curious as well. I looked into this a long time ago and didn't find an answer.

iride813 · 08-06-2018, 10:24 AM

Anyone??

mfsuper90 · 08-06-2018, 12:48 PM

I tried machining a set once, they were too hard for the cutters i had. But we only have old school tools, so I’m sure a nice carbide insert would do the trick

Redrider2911 · 08-06-2018, 12:55 PM

I machined the shoulder thinner on a set once to more closely resemble am 024. I believe if you are going with full cuts, then im sure you just turn the shoulder all the way off to where the shank is smooth.... I would think within .001 would be even enough.

1320Cummins · 08-06-2018, 01:40 PM

Maybe this helps a bit...

iride813 · 08-08-2018, 07:18 AM

We have cutters. I’ve made them all into full cut. Was just wondering if they were supposed to be a certain diameter or if they just need to have the shoulder turned down flush.

08-01-2018, 08:33 AM	#1
iride813 Name: iride813 Title: Too Much Time Status: Not Here Join Date: Mar 2018 Location: Tennessee Member`s Gallery Posts: 392	Machining delivery valves Sorry for all the post past few days, but anyways. I have a set of 191 delivery valves I’ve decided to go ahead and turn them into full cuts. That being said I was wondering what I should turn the diameter down to once shoulder is gone and how accurate they need to be within each other. Thanks!

08-01-2018, 09:24 AM	#2
CorneliusRox Name: CorneliusRox Title: Seasoned Rookie Status: Not Here Join Date: Dec 2012 Location: Detroit, MI Member`s Gallery Posts: 4,154	Curious as well. I looked into this a long time ago and didn't find an answer. __________________ Corey - BSME '21 Tesla Model 3 Perf '22 DMax AT4 2500

08-06-2018, 12:48 PM	#4
mfsuper90 Name: mfsuper90 Title: 300ft is all I need Status: Not Here Join Date: Feb 2013 Location: Southeast ohio Member`s Gallery Posts: 769	I tried machining a set once, they were too hard for the cutters i had. But we only have old school tools, so I’m sure a nice carbide insert would do the trick __________________ ’82 300D benz Bosch MW turned up, HX30, W/A Intercooler MF Super 90 various odds and ends done. Farm stocker MF 98 3-71 screaming jimmy. Needs N90's. Another farm stock '14 Ram Anarchy EFI, G56

08-06-2018, 12:55 PM	#5
Redrider2911 Name: Redrider2911 Title: Too Much Time Status: Not Here Join Date: Nov 2015 Location: Yakima, WA Member`s Gallery Posts: 780	I machined the shoulder thinner on a set once to more closely resemble am 024. I believe if you are going with full cuts, then im sure you just turn the shoulder all the way off to where the shank is smooth.... I would think within .001 would be even enough. __________________ 49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread

08-06-2018, 10:24 AM	#3
iride813 Name: iride813 Title: Too Much Time Status: Not Here Join Date: Mar 2018 Location: Tennessee Member`s Gallery Posts: 392	Anyone??

08-08-2018, 07:18 AM	#7
iride813 Name: iride813 Title: Too Much Time Status: Not Here Join Date: Mar 2018 Location: Tennessee Member`s Gallery Posts: 392	We have cutters. I’ve made them all into full cut. Was just wondering if they were supposed to be a certain diameter or if they just need to have the shoulder turned down flush.