75 TS sparkplugs

[AikenDrum105]

Hi folks,

I've been having a little difficulty tracking down plugs for my 75 TS engine  - mainly because I need the older style where you can unscrew the cap on the top and use the threaded rod connection instead.   I wondered if anyone else has run into this and found a plug manufacturer that hasn't done away with the removable caps ?  All the NGK units now have solid caps it seems. 

While the engine did come with leads to suit the threaded rod plugs - I realise new leads could normally be sourced to suit the later caps - however the TS is in my Super - and the plugs need to be the threaded rod type to suit the Coil-On-Plug units I'm using. 

Yes - I may be needlessly complicating things for myself.  It would not be the first time

Just thought I'd throw it out there in case all the same... 

The COP units are Denso (from a GSXR)  - who do list a plug to suit the 75 TS in their catalogue  - so I might start there.  Or  I might just turn the caps on a set of BP6E's down on the lathe...   

Cheers,

[Darryl]

I think (hope - its been a year or so since I bought some, can't remember if it was from Burson's or Repco) you can still get NGKs with the removable terminal nut *but* you won't find them in the bubble pack retail displays... On the boxes of 10 they come in when bought over the counter there is a pic that shows which type of terminal it has but I don't think it is part of the part number? Worth checking at your local parts place and/or a call to NGK.

[Joe Falcone]

hi
ive still got original leads and am encountering the same limited choices,
currently using the bosches which have the caps that unscrew
joe

[pep105]

Hey Scott,

The Denso bloke (bloke who deals with Denso) sits next to me at work, Ill see if what info we can find. He also has the Denso catalogue which I remember did have a listing for the 75 TS as I used to refer to it for mine. It also has a cross reference from memory as well.

Ironically the Bosch bloke (bloke who deals with Bosch) sits behind me  I'll enquire there as well.

Stay tuned

Cheers

Pep 

[shiny_car]

The Denso bloke (bloke who deals with Denso) sits next to me at work

Ironically the Bosch bloke (bloke who deals with Bosch) sits behind me 

Bahaaha! That is gold!

Pep, what are you? The NGK bloke?! 

[pep105]

Ha Ha

I wish Shiny !   Cheap spark plugs for the fetta and the 105  

I used to be those blokes now I just sit between them !

[AikenDrum105]

Very useful info folks - I really appreciate it !    I'll let you know what I find !

Cheers,

[MD]

Hey Pep. Now I get it why you're so sharp. You're full time bright spark sandwich...hehee

Aiken-Bosch sell 'em. I use this type in my race car. Bosch heat range range goes in the oppsite direction to NGK.

[festy]

The NGK B7ES and B8ES I bought from supercheap a couple of months ago all have removable caps.
They were individually boxed, not the multi-packs.

[MD]

festy,

Are these heat range plugs in the smaller version required for the TS engine or just the regular plugs?

[AikenDrum105]

Thanks Festy - the BP (smaller hex size) 6E, BPR6E and similar I tried at Autobarn and Repco were the individually boxed ones.  Lad at autobarn reckoned they still had removable caps in the older stock they were clearing out - just not the size I wanted.   Wingnut at Repco started waxing lyrical about how only lawnmower plugs had threaded tops on them...   and same result with the boxed NGKs...

be interesting to see what Pep's NGK mate has to say - might clear it up.    Definitely no distinguishing part number in NGK to say which it has..   

Might give Super Cheap a go and see if they have any of the rod style.

A few people have mentioned that the Bosch 4 post plugs are still all the rod style... 

Curioser and Curioser !

[MD]

Bosch plugs suitable for the TS engine requiring a 16mm socket are:-

FR5DC -Standard
FR5DP-Premium

These might be little too cold for a street engine and you could try the next warmer type which is one number higher, ie.

FR6DC

[pep105]

Thanks MD I've been called worse more like couple of sandwiches short of......

Here is what I have so far, bit of a disclaimer is that our Denso catalogue is old(ish) however
plugs are still listed, also need to confirm if they have  threaded rod caps which pretty sure they do.

Just to clarify heat range, below is a list of heat ranges for major brands of standard plugs

MD is full of good info as usual - Bosch and NGK heat range numbers are arse about


Denso       NGK          Champion     Bosch
    9            2                18              10
   14          4              16, 14            9
   16          5              12, 11            8
   20          6              10, 9            7,6
   22          7               8, 7               5
   24          8               6, 63, 61        4
   27          9                4, 59            3
   29        9.5               57
   31        10                55                2
   32       10.5              53
   34         11
   35        11.5


OK for 75 TS (Plug Gap 0.8mm)

Standard Plug            Iridium Power
 
K20PBR                           IK20                 where K = 16mm Hex size and 14mm thread diameter.

Iridium power has a smaller electrode (0.4mm) compared to the standard plug (approx 0.7mm)

Claim is the finer the electrode the stronger the spark.

Now Toyota dealers are the distributors for Denso spark plugs as listed on the Denso website.

What this means is if you require Denso () spark plugs for your 1974 Lamborghini Jarama 400GT 2+2
and hustle into a Toyota dealer and request it, they should be able to source it for you, even if that plug type isn't used on a
Toyota.

Eg IK20 should be in stock as it's used on Toyota's whereas K20PBR is not a stock item. AFAIK.

Also I don't know how good Denso plugs are, typically had experience with NGK and Bosch to a lesser extent, although haven't heard bad things about Denso.

Will have some more info on Bosch from the other dude later

Hope this helps

Cheers

Pep  

[AikenDrum105]

Thanks again for the info Pep !

Well - the Toyota dealers want $18 each for the Denso IK20 - but I've found some on fleabay for about 12 - so might give those a try - the seller confirmed they have the removable tops.   

[pep105]

Hey mate sent you a PM

Cheers  Pep