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Old 10-04-2020, 11:30 AM   #1
StianK
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Default Oil gallery plug to 8ba

Hi. Iím building a 8ba , and need new oil gallery plugs. I live in Norway and donít have many shops to by inch treads bolts and flathead parts at all. Any one knows where to by Iíll be glad.
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Old 10-04-2020, 11:45 AM   #2
George
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Default Re: Oil gallery plug to 8ba

Is this what you need?


https://thirdgenauto.com/product/193...ouldered-plug/
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Old 10-04-2020, 12:15 PM   #3
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Default Re: Oil gallery plug to 8ba

No, that is for the earlier engine, but 3rd Gen will have the right one.
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Old 10-04-2020, 02:52 PM   #4
51 MERC-CT
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Default Re: Oil gallery plug to 8ba

The stock plug has a screw driver slot but one can be made by using an allen pipe plug, making sure to remove material from it to prevent it from hitting the timing gear
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Old 10-04-2020, 06:15 PM   #5
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Default Re: Oil gallery plug to 8ba

Quote;



" I live in Norway and don’t have many shops to by inch treads bolts"


Availability in Norway is the problem. Our inch based hardware isn't so common there. Having said that, a 3/8-19 BSP tapered plug may fit if the threads in the block are chased with the proper tap. Yes, some thread damage will result, but I'll bet it would be fine.
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Old 10-04-2020, 07:20 PM   #6
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Default Re: Oil gallery plug to 8ba

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Quote:
Originally Posted by cadillac512 View Post
Quote;



" I live in Norway and don’t have many shops to by inch treads bolts"


Availability in Norway is the problem. Our inch based hardware isn't so common there. Having said that, a 3/8-19 BSP tapered plug may fit if the threads in the block are chased with the proper tap. Yes, some thread damage will result, but I'll bet it would be fine.
Norway does have access to EBAY as well as other suppliers.
Might not be available at the corner hardware store but a search online will yield results.
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Old 10-04-2020, 07:32 PM   #7
V8COOPMAN
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Default Re: Oil gallery plug to 8ba

Quote:
Originally Posted by cadillac512 View Post
Quote;
Having said that, a 3/8-19 BSP tapered plug may fit if the threads in the block are chased with the proper tap. Yes, some thread damage will result, but I'll bet it would be fine.
You sure you really want to risk deforming the original threads, IF it doesn't seal properly? Thread SHAPES and ANGLES are different, at the least. DD

NPT:




BSP:




DIFFERENCES Chart:

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Old 10-04-2020, 07:48 PM   #8
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Default Re: Oil gallery plug to 8ba

The amount of leakage from the different thread pitches will be insignificant.
It is standard practice to drill a .040 (1mm) hole in the plug on high performance engines.
(to oil the gear)
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Old 10-04-2020, 07:54 PM   #9
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Default Re: Oil gallery plug to 8ba

Quote:
Originally Posted by StianK View Post
Hi. I’m building a 8ba , and need new oil gallery plugs. I live in Norway and don’t have many shops to by inch treads bolts and flathead parts at all. Any one knows where to by I’ll be glad.
Regarding Stian
Try hardware and plumbing supply outlets as well as EBAY as stated.
By all means do NOT do any odd size re-tapping.
The plugs are available.
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Old 10-06-2020, 06:07 AM   #10
StianK
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Default Re: Oil gallery plug to 8ba

Thanks for answer . So treads are 3/8-19 thanks .
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Old 10-06-2020, 06:54 AM   #11
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Default Re: Oil gallery plug to 8ba

Quote:
Originally Posted by StianK View Post
Thanks for answer . So treads are 3/8-19 thanks .
WRONG--- The the threads are (NPT 3/8-18)
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