Club 80-90 Forums

I have found that it is worth inspecting the area around the plug holes carefully for build up of dirt, before removal is commenced. This is especially important on imports from dusty countries like Finland and Sweden, and syncros, as the fine dust and crud accumulates around the plug. This dirt needs to be removed before taking the plug out to prevent any from entering the cylinder bores. With my syncro, I wash the area with a degreasant, like Jizzer, by working it around with a stiff small brush, and then hose off with a good deal of pressure. Then start the engine to dry out a bit, then remove plug. In my experience if the plug does not come out by hand, after initial spannering, then I will work it in and out a few times with a bit of penetrating oil, to clean the threads, before putting the new plug in. This allows the new plug to be fitted with a smear of copper slip first time, by hand, eliminating the possibility of cross threading. Once done this way, future plug removal is very much easier.

All good advice Simon, thanks. Goodness knows how lomg some have been in there
If only peeps weren't in such a hurry to wind those plugs out sometimes
The expression I usually listen for is...

'it's only a 5 minute job'

and then quietly walk away.

Does such a thing exist, taking into account the aftermath (often for the next owner!)

Have often found plugs other then Bosch won't come out easily, but Bosch will go in easily without doing any extra cleaning of plug hole.
I have a thread chasing tool for cleaning threads before putting in new plugs if needed. Works a treat and doesn't enlarge or cross-thread.

ngk listings as per cat for t25
1.6 eng ct065010 79-82 12.7mm reach ngk b6hs
1.6eng ct065011 79-82 19mm reach ngk b6es
1.9 eng dg df gw sp 87-92 ngk bp6et
2.0 eng cu cv 79-82 b6es
2.1 eng mv sr ss 83-86 ngk b6es
2.1 eng dj 86-92 ngk bp6et
might be usefull to cross ref for whatever plugs u want to use
gally

Mmm
I have only used Bosch W7DTC (triple electrode)
Many many miles on LPG and never a problem, many many more miles on liquid gold... never a problem... never seen any that I would not refit in that time either.. some have been in for 30k+ miles as they looked so good..

IIRC Bosch have dropped the triples in anycase.. you get a single type now thats supposed to do the same mileage... I havent run any yet as I managed to score several sets of Bosch W7DTC's from the local supermarket when they had a major revamp and clearout.. 10 cents per pack IIRC........ thats my good luck used up for the next 5 years....

Thanks, all Wiki'd

Spark Plugs