Re: Hemi Spark plug tubes
[Re: TJP]
#3063132
07/27/22 09:39 PM
07/27/22 09:39 PM
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Joined: Jan 2004
Posts: 8,313 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,313
fredericksburg,va
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Just use the oil plug nylon washer, What's an oil plug nylon washer ? do you mean a drain plug washer? Will they take the heat without losing their rigidity? If not there are likely other plastics that probably would. HMM maybe a good idea Yes, what I meant. Not sure how much heat is right there but I would say no more the hot oil in the pan, 250 degrees?
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Re: Hemi Spark plug tubes
[Re: moparx]
#3064233
08/01/22 08:04 AM
08/01/22 08:04 AM
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Joined: Mar 2005
Posts: 2,060 Pendleton NY
terzmo
OP
top fuel
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OP
top fuel
Joined: Mar 2005
Posts: 2,060
Pendleton NY
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Just the one it came with.....someone mentioned to use loctite 518 on the back side of the washer.
Last edited by terzmo; 08/01/22 08:05 AM.
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Re: Hemi Spark plug tubes
[Re: ZIPPY]
#3064618
08/02/22 12:15 PM
08/02/22 12:15 PM
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Joined: Jan 2003
Posts: 15,459 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,459
Omaha Ne
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The dorman's doo look nice. I've been using these GASKET ASST. LINKY And have taken to wrapping the plug threads with teflon tape Shop on the suggested kits if you go that way as the price varies ![wink wink](/ubbthreads/images/graemlins/custom/wink.gif)
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Re: Hemi Spark plug tubes
[Re: TJP]
#3065082
08/04/22 08:47 AM
08/04/22 08:47 AM
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Joined: Jun 2014
Posts: 1,331 VA
dragon slayer
pro stock
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pro stock
Joined: Jun 2014
Posts: 1,331
VA
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The dorman's doo look nice. I've been using these GASKET ASST. LINKY And have taken to wrapping the plug threads with teflon tape Shop on the suggested kits if you go that way as the price varies Are we still talking spark plugs or have you shifted to oil plugs? Please tell me you don't teflon wrap spark plugs ![eek eek](/ubbthreads/images/graemlins/custom/eek.gif)
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Re: Hemi Spark plug tubes
[Re: dragon slayer]
#3065141
08/04/22 11:54 AM
08/04/22 11:54 AM
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Joined: Jan 2003
Posts: 15,459 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,459
Omaha Ne
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The dorman's doo look nice. I've been using these GASKET ASST. LINKY And have taken to wrapping the plug threads with teflon tape Shop on the suggested kits if you go that way as the price varies Are we still talking spark plugs or have you shifted to oil plugs? Please tell me you don't teflon wrap spark plugs Sure do, keeps them from making a good ground to the cylinder head and is great for comebacks, then i can upgrade the plug wires and other things back to the drain plug, any chance you have a 12mm x 1.75 bolt n a 1/2x20 opening? I ask as they are close diameter and pitch wise, may mate and tighten but with little thread engagement. In over 50 years I have never encountered a drain plug that kept loosening. ![shruggy shruggy](/ubbthreads/images/graemlins/custom/shruggy.gif)
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Re: Hemi Spark plug tubes
[Re: TJP]
#3065185
08/04/22 02:24 PM
08/04/22 02:24 PM
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Joined: Feb 2003
Posts: 16,156 Mesa, Arizona
dart4forte
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 16,156
Mesa, Arizona
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I use them on my early Hemi
“So if it’s on the internet it must be true”
Abe Lincoln
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Re: Hemi Spark plug tubes
[Re: dart4forte]
#3065200
08/04/22 02:48 PM
08/04/22 02:48 PM
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Joined: Aug 2003
Posts: 43,252 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,252
Bend,OR USA
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I use them on my early Hemi 426 hemi tubes in an early Chrysler Fire Power 331,354 392 C.I.? ![work work](/ubbthreads/images/graemlins/custom/work.gif) Please let us know, that could solve a problem in a different way than I would have thought of ![luck luck](/ubbthreads/images/graemlins/custom/luck.gif)
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Hemi Spark plug tubes
[Re: TJP]
#3065232
08/04/22 03:53 PM
08/04/22 03:53 PM
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Joined: Mar 2005
Posts: 2,060 Pendleton NY
terzmo
OP
top fuel
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OP
top fuel
Joined: Mar 2005
Posts: 2,060
Pendleton NY
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The dorman's doo look nice. I've been using these GASKET ASST. LINKY And have taken to wrapping the plug threads with teflon tape Shop on the suggested kits if you go that way as the price varies Are we still talking spark plugs or have you shifted to oil plugs? Please tell me you don't teflon wrap spark plugs Sure do, keeps them from making a good ground to the cylinder head and is great for comebacks, then i can upgrade the plug wires and other things back to the drain plug, any chance you have a 12mm x 1.75 bolt n a 1/2x20 opening? I ask as they are close diameter and pitch wise, may mate and tighten but with little thread engagement. In over 50 years I have never encountered a drain plug that kept loosening. Using the plug that came with the pan
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Re: Hemi Spark plug tubes
[Re: terzmo]
#3065316
08/04/22 09:02 PM
08/04/22 09:02 PM
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Joined: Jan 2003
Posts: 15,459 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,459
Omaha Ne
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Using the plug that came with the pan Depending on a number of variables like where the pan and its parts originated from you may have a tolerance stack up issue or poor QC. I would suggest trying a longer GOOD QUALITY 1/2-20 bolt to see how snug or loose it is in the pan threads. If it's too loose you could go to an oversize plug to resolve the issue. I don't like suggesting that but something is not right and it needs to be identified and remedied.
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Re: Hemi Spark plug tubes
[Re: TJP]
#3065426
08/05/22 10:07 AM
08/05/22 10:07 AM
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Joined: Jan 2004
Posts: 8,313 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,313
fredericksburg,va
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Using the plug that came with the pan Depending on a number of variables like where the pan and its parts originated from you may have a tolerance stack up issue or poor QC. I would suggest trying a longer GOOD QUALITY 1/2-20 bolt to see how snug or loose it is in the pan threads. If it's too loose you could go to an oversize plug to resolve the issue. I don't like suggesting that but something is not right and it needs to be identified and remedied. Could be metric threads in the pan or plug, sometimes the two sizes are real close. Just had that problem replacing blade bolts on my finish mower. Thought they were 5/8 “ course but they were 16 mm. If it wasn’t for the nut and bolt guides on top of the bolt cabinet I wouldn’t have noticed the difference.
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Re: Hemi Spark plug tubes
[Re: cudaman1969]
#3065446
08/05/22 11:17 AM
08/05/22 11:17 AM
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Joined: Jan 2003
Posts: 15,459 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,459
Omaha Ne
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Using the plug that came with the pan Depending on a number of variables like where the pan and its parts originated from you may have a tolerance stack up issue or poor QC. I would suggest trying a longer GOOD QUALITY 1/2-20 bolt to see how snug or loose it is in the pan threads. If it's too loose you could go to an oversize plug to resolve the issue. I don't like suggesting that but something is not right and it needs to be identified and remedied. Could be metric threads in the pan or plug, sometimes the two sizes are real close. Just had that problem replacing blade bolts on my finish mower. Thought they were 5/8 “ course but they were 16 mm. If it wasn’t for the nut and bolt guides on top of the bolt cabinet I wouldn’t have noticed the difference. ![iagree iagree](/ubbthreads/images/graemlins/custom/iagree.gif) it could be either the plug itself or the threads in the pan or possibly both I have run into this a few times as well along with other QC issues. TO the OP: FYI 20 TPI is real close to 1.25mm TPI which is 20.32 TPI. A 12mm bolt is about .472 and a 12.5mm is .492. the 12.5 is a bit uncommon but available in a bolt. Not sure on the drain plug though.
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