Just fitted new plugs to the Disco (3.9i), alot smoother now!.
Quick question for the V8 gurus out there. What plug would you recommend??.
The old ones were NGK BPR6E's and i was given BPR5ES's. What does the 'S' mean?.
Dom J
Standard 2.5mm electrode.
Personally I'd be more concerned why they've given you a warmer plug.
The old plugs had a bit of a groove in the electrode as well. New ones don't.
Should i be worried coz of the warmer plug or not(engine done 100,00 ish miles)?. Off to North Wales in it towing a canoe trailer in a weeks time so need to know it aint gonna go bang. What plugs sholud be fitted?.
Dom J
Couldn't tell you the "correct" heat range you should be looking at but a quick search on google pulled a few different part numbers so they are not all the same. From the Rimmer Bros website :- Spark Plug; Rover P6 (12.7mm reach) - (8) - GSP4376 Rover SD1 (19mm reach) Carb Engines 1976 - 1982 - (8) - GSP4382 1982 Onwards - (8) - GSP4362 Efi Engines - (8) - GSP6462 Triumph TR8 - (8) - GSP4382 Range Rover
3.5 Litre 1970 - 1977 - (8) - GSP4376 1978 Onwards - (8) - GSP4362 3.9 Litre 9.35:1 cr Non Catalyst - (8) - GSP4362 8.13:1 cr Catalyst Engines - (8) - GSP4482 4.2 Litre - (8) - GSP6462
An old engine may be running hotter or cooler than intended. If the dealer saw the old plugs he may have been able to tell from their condition and may have supplied you correctly. If he didn't look though and just said " These'll do, they're only one grade off the originals" then he should be shot. I suppose you could run the new ones for a short time, say 200 miles, and then check them.
TonyB
On or around Tue, 11 Jul 2006 23:12:52 +0100, "TonyB" enlightened us thusly:
mostly though the plug grade is not that critical.
On or around Tue, 11 Jul 2006 21:44:56 +0100, "Fuzzy" enlightened us thusly:
although those numbers, as they stand, are meaningless to me... whose part numbers are they?
I reckon they are Unipart numbers IIRC
The clue is in the post. ;o)
-- Andy
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