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Correct spark plugs for a MGTD 1953

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Correct spark plugs for a MGTD 1953 #1
apillar Allen Pillar South Amboy, NJ, USA Sign in to contact	Topic Creator (OP) Apr 17, 2024 07:22 AM Joined 2 years ago 2 Posts

So sorry to re visit this again. I have a 1953 MGTD with engine stamp of 22952 What is the correct NGK plug for my car? I thought i understood this, but other sites come up with different specs.

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Re: Correct spark plugs for a MGTD 1953 #4
hueyhoolihan Huey Hoolihan Antioch, CA, USA Sign in to contact	Apr 17, 2024 01:22 PM Top Contributor Joined 2 years ago 1,177 Posts

i can't say for sure but the 22952 is a casting stamp on the head, which is a reference number for a mold. and as a casting, it can be machined into heads, and may have been, suitable for a variety of blocks used in any number of complete engines. at least that's my understanding, and sounds reasonable to me.

anyway, i know wouldn't feel confident after 70+ years that the sparkplug holes in a 22952 casting would be suitable for the block and pistons on which it sat.

if i were in a situation where i was unsure, i would feel it best to test first. and barring that, i would use plugs with the shortest threads and monitor for suitability.

the advice given previously should prove sufficient for that.

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Re: Correct spark plugs for a MGTD 1953 #5
AbingdonNerd Jeffrey Delk Hartwell, GA, USA Sign in to contact 1950 MG TD	Apr 17, 2024 04:04 PM Top Contributor Joined 1 year ago 1,201 Posts

I thought it would be just the opposite. Wouldn’t you want a colder plug for long continuous high speed use - in order for the plug to better shed off the heat?

In reply to # 4786177 by ML320X5 1/2" reach for 22952. B6HS, hotter for HWY. B7HS, colder for street.

Jeffrey W. Delk
Hartwell. Georgia USA
1950 MGTD #2301
1954 MGTF 1500 #7673
1957 MGA
1971 MGB Tourer

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Re: Correct spark plugs for a MGTD 1953 #6
GB3 George B Winter Haven, USA Sign in to contact	Apr 17, 2024 07:48 PM Top Contributor Joined 5 years ago 1,288 Posts

Have run B6HS for many years. Perfect for all conditions. George

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Re: Correct spark plugs for a MGTD 1953 #7
ML320X5 Stan Y Tulsa, OK, USA Sign in to contact 1952 MG TD 1973 MG MGB 2002 BMW X5 2005 Mercedes-Benz SL500	Apr 18, 2024 08:28 AM Joined 8 years ago 398 Posts

What I understand is NGK is totally opposite of other's brands . The higher the number, the colder the plug.
A colder plug will withstand more heat which is good for stop & go traffic.

Edited 2 time(s). Last edit at 2024-04-18 08:31 AM by ML320X5.

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Re: Correct spark plugs for a MGTD 1953 #8
GB3 George B Winter Haven, USA Sign in to contact	Apr 18, 2024 09:04 AM Top Contributor Joined 5 years ago 1,288 Posts

https://ngksparkplugs.com/en/resources/understanding-spark-plug-heat-range

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Re: Correct spark plugs for a MGTD 1953 #9
TD4834 Bill Chasser Sacramento, CA, USA Sign in to contact 1950 MG TD 1951 MG TD 1951 MG TD MkII 1952 MG TD MkII & more	Apr 18, 2024 11:13 AM Top Contributor Joined 9 years ago 6,625 Posts

Ultimately the correct plug will be determined by the heads casting number. After 70 years these cars have been mixed and matched.

Bill Chasser
TD-4834
TD-5779
TD/c-8151
TD/c-16920
TD-19408
TD-24060

TF-8200

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Re: Correct spark plugs for a MGTD 1953 #2
ML320X5 Stan Y Tulsa, OK, USA Sign in to contact 1952 MG TD 1973 MG MGB 2002 BMW X5 2005 Mercedes-Benz SL500	Apr 17, 2024 08:16 AM Joined 8 years ago 398 Posts

Re: Correct spark plugs for a MGTD 1953 #3
apillar Allen Pillar South Amboy, NJ, USA Sign in to contact	Topic Creator (OP) Apr 17, 2024 09:52 AM Joined 2 years ago 2 Posts

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Correct spark plugs for a MGTD 1953

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