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Location:
Brisbane
Registered:
December 2002
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wat caused the condition of these spark plugs?
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Sat, 15 March 2003 03:40
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I pulled out and changed the plugs in my 5me today, i noticed the old ones were still ok...plenty of life left in them, but the heads around them were like a rusty organge/ brown colour...could that be the nasty lrp petrol its using? Should i run some upper cylinder in it? Or could it be running lean?
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Banned member
Location:
Brisbane
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 03:43
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that is normal colour
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 03:46
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nah this was not normal...ok theyre orange, ill try and get a pic of them. I pulled the ones out of the jag today and they were fine (its unleaded) and they look nothing like these ones...i dont know if its whether theyre running hot, or being run on shit petrol...but its not normal trust me!
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Location:
Sydney
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 03:55
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why not run unleaded in the 5m?
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 04:04
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lol ur kidding right? Do it for long enough and youll burn out the valve seals and things will get very hot and damaged...the lrp has an ingredient which helps substitute for the bit of lubrication of the engine when it ran on leaded. Running unleaded will not lubricate anything and can burn out things in your head like i said valve seals etc...to run it on unleaded youd have to put in an additive to substitute for the lead...even on lrp you should run some additive.
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Location:
Sydney
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 04:07
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cant the 5m be run on unleaded.. I know my 18r-c from 1977 could be run on unleaded.
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Banned member
Location:
Brisbane
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 04:08
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i seem to recall all toyota motors built after 1971 were made for unleaded but at the time leaded fuel here was the only fuel which had a high enough octane so they were built with hardened valve seats
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 04:09
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of course it can but it wont do the engine any favours trust me. There was a 5me unleaded version, but mine was born on superjuice. Anyway, can someone answer my question.
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Banned member
Location:
Brisbane
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 04:12
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thought i already did
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 04:37
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lol it may seem like ususal to you...but it is not normal to look like this...was causin the engine to miss sometimes too...is fine now tho.
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Location:
MACKAY
Registered:
May 2002
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Location:
Sydney
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 05:54
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Yeah i switched over to PULP
i noticed it started a little easier....that was it
but the thing is i dont have a CAT so i didnt wanna pollute so i stuck with LRP
i suggest u guys do the same unless u fit a CAT
cause unleaded releases nasty crap
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Location:
Sydney
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 05:54
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ohwell... dont stand behind your car.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 05:58
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Shit dude, there is a shitload of nasty stuff in that LRP fuel! As someone said before, all Toyota engines built from the mid-70's (including your 5ME) were designed to run on ULP as that was what Japan had, only problem is in here they had to run on Super as nothing else had the required octane.
I now run my RA60 on a sole diet of BP Ultimate 98, with about double the factory timing in it (achievable with reserve thanks to octane). I don't think Toyota got as good fuel economy and smoothness out of the 21R-C lump when it was new!
Make the change dude, PULP all the way!
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 07:00
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whats pulp? Premium unleaded? u guys think i should change over?
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 07:15
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thanks guys yeah ill change it over on tuesday...tanks about 1/2 full now so a few days more and it will be clean again  Mines a bastard to start when cold too....stalls unless u keep your foot on throttle.. Will that orange shit dissapear from the valves/ pistons if i start to use and keep using from now on pulp? Also will i now have to change my oil etc?
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Location:
Canberra
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 09:05
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Theres actually some towns down on the south coast that wont even sell leaded (lead replacement) fuel as they have had to much trouble with it stuffing engines.
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 09:20
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shit...a good enough indicator to stop using it...
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Location:
Canberra
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sat, 15 March 2003 09:24
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I dont know if anybody is aware or remembers the avgas crisis that happened in the aviation industry a couple of years but all that fuel actually got converted into unleaded.
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Location:
Hornsby, Sydney
Registered:
October 2002
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 07:57
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If your really fussed i think you can put about half a cup of 2 stroke oil in your tank every time you fill up. I'd check with someone who is more in the know though. Ive heard of people using this on early holden motors and did them alright and your motor would handle pulp alot better than those old donks. I'm olny speaking from what i have been told and have never run a car like this but i think it would work.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 08:01
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Use castor oil. Does a great job and smells real nice 
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 08:02
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well after running it today it didnt make a "ping" noise so all is good. runs smoother also.
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Location:
Lost in the K hole
Registered:
May 2002
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Location:
Brisbane
Registered:
December 2002
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Location:
Lost in the K hole
Registered:
May 2002
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 09:39
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this thread and wat i said to begin with was correct as i didnt know the alloy head toyota motors post 71 were designed to be able to run on ulp. i simply asked a question and made a statement which was correct to what i was thinking about at the time.
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Location:
Lost in the K hole
Registered:
May 2002
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Location:
Montrose, VIC
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 10:39
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I love the little tantrums that always seem to erupt whenever Robbo says something 
Couple of points:
1. LRP is only 95 octane premium unleaded with a so called additive anyway - although is does seem to do some nasty stuff to some engines! If your engines fine with unleaded, then use unleaded.
2. Valve seat recession was generally only relevant with non inserted cast iron heads (Let's all pick on cast iron V8s and start another tantrum fest ey? Although one of the worst offenders for VSR was old school landcruisers ) Anything with an aluminium head needs inserts anyway, as does anything with an iron head that runs on either LPG or ULP.
3. Castor oil smells fantastic - almost as good as vegie oil in a diesel
4. Someone tell me why with imported cars we have to change the filler for the skinny neck one that'll only fit unleaded nozzles - you can't buy leaded petrol in australia any more - maybe its to stop idiots putting diesel in there instead 
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Location:
Montrose, VIC
Registered:
May 2002
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 10:45
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Also Ed, before you get TOO excited, remember Robbo is obviously from a more 'traditional' background so far as car knowledge goes - that's not always a bad thing. The thing is, to learn one needs to ask questions, and sometimes the answers are a smack in the face to what one might have been told earlier. Yes lead was used as an upper cylinder lube, and many years ago many engines WOULD suffer without it (usually when running on gas).
And Robbo, the best way to make a whinger look like an idiot is to ignore them
Now I've had my whinge for the night, I can sleep well!
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: wat caused the condition of these spark plugs?
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Sun, 16 March 2003 11:09
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| mrshin wrote on Sun, 16 March 2003 18:45 |
And Robbo, the best way to make a whinger look like an idiot is to ignore them
Now I've had my whinge for the night, I can sleep well!
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mrshin as of now i'm ignoring you 
*wonders why mrshin doesnt look anymore like an idiot than he did 5 minutes ago*
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Location:
Brisbane
Registered:
December 2002
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Re: wat caused the condition of these spark plugs?
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Mon, 17 March 2003 11:35
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lol thanks for that
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