|
10-28-2022
|
#1 |
|
Join Date: Aug 2005
Location: Fishers, IN
Posts: 815
|
Crankshaft cup plugs
What are your preferred methods for removing the old crank plugs and pressing in new ones? Does anyone have a tool for that?
Todd Sent from my iPhone using ZR-1 Net Registry
__________________
Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
|
|
|
10-28-2022
|
#2 |
|
Join Date: Jun 2012
Location: fort worth
Posts: 183
|
Re: Crankshaft cup plugs
That's probably a good question for Graham.
When pulling seals in motorcycle engines, I drill a small hole in them, then screw in a sheet metal or wood screw. Then grab the screw with vice grips and pull it out. That might work with crank plugs. Last edited by CamP; 10-28-2022 at 05:53 PM. |
|
|
|
|
10-28-2022
|
#3 |
|
Join Date: Jun 2012
Location: fort worth
Posts: 183
|
Re: Crankshaft cup plugs
Something like this core plug remover.
https://i.stack.imgur.com/97OhC.jpg |
|
|
|
|
10-28-2022
|
#4 |
 
Join Date: Apr 2007
Location: Northern VA
Posts: 2,661
|
Re: Crankshaft cup plugs
For removing the plugs use a straight 1/2" rod approximately 20" +_ long with one end rounded off so it makes contact with approximately 10 mm of the cup center. Starting with the rear cup hammer the rod through until all cups are removed.
For installing use LT5 special tools J-37306, J-38837, Loctite 620 and follow FSM instructions. Sent from my iPhone using ZR-1 Net Registry
__________________
Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
|
|
|
|
10-29-2022
|
#5 |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
|
Re: Crankshaft cup plugs
If you are stroking the motor and you have done crank work I highly recommend welding the non threaded expansion ones. My first 380 dropped a expansion plug mins after the engine was installed using the right Kent Moore tools.
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
|
|
|
|
10-29-2022
|
#6 | |
|
Join Date: Jun 2012
Location: fort worth
Posts: 183
|
Re: Crankshaft cup plugs
Quote:
The other was a stock crank that threw out one of the npt plugs. That's really odd. The FSM mentions removing the plugs to clean the oil passages in the crank, but doesn't go into much detail at all. Seems like an important step that is usually overlooked. Last edited by CamP; 10-29-2022 at 01:19 AM. |
|
|
|
|
|
10-29-2022
|
#7 | |
 
Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,092
|
Re: Crankshaft cup plugs
Quote:
__________________
2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough" |
|
|
|
|
|
10-29-2022
|
#8 | |
|
Join Date: Jun 2012
Location: fort worth
Posts: 183
|
Re: Crankshaft cup plugs
Quote:
I think Phil has the answer here. He really helped me out recently with an unobtainable part. Great guy! Last edited by CamP; 10-29-2022 at 02:52 PM. |
|
|
|
|
|
10-29-2022
|
#9 |
|
Join Date: Feb 2013
Location: New Concord Kentucky
Posts: 181
|
Re: Crankshaft cup plugs
Phil has a correct answer. The only things i would add, when replacing stock plugs the kent moore tool is correct, when fitting aftermarket plugs it may not be depending on plug width. Also stock is 0.866 plug diameter, typical aftermarket cranks are .875 and plug widths differ.
Graham |
|
|
|
|
10-29-2022
|
#10 | |
|
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
|
Re: Crankshaft cup plugs
Quote:
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
|
|
|
|
 |
|
|
Linear Mode
