phillippe
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| posted on 2/4/06 at 03:42 PM |
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help mgbgt
OK men WATS the difference between a leaded head and UN leaded head on mgb gt ..and wot do i need to do to run on unleaded is it the timing etc.cheers
i now u can do it ,
 
Rescued attachment mg at rosys 017.jpg
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britishtrident
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| posted on 2/4/06 at 03:51 PM |
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(1) Hardened valve seats
(2) Just set the timing by the book road test and retard the ignition until any pinking stops. Pinking normally occurs in high gears at low RPM and
high throttle opennings -- test procedure is warm the car up and try going up a steep hill from low rpm in a high gear.
(3) You can run unleaded without conversion using lead replacement additives -- also the valve seats will have some protection from the lead memory
effect.
For more info try the MG usenet groups and the various MG and MG-Rover forums.
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Peteff
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| posted on 2/4/06 at 03:57 PM |
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Just put some lead substitute and octane booster in the petrol and don't bother doing anything to the engine.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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ch1ll1
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| posted on 2/4/06 at 07:09 PM |
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if your not going to doi many miles then i wouldnt bother doing any work!
if you plan to do lots then all exhaust seats need need sorting
but then that doesnt cost much
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britishtrident
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| posted on 3/4/06 at 07:53 AM |
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quote:
Originally posted by ch1ll1
if your not going to doi many miles then i wouldnt bother doing any work!
if you plan to do lots then all exhaust seats need need sorting
but then that doesnt cost much
Yes you can get away without doing the valve seats for a quite a while BUT the timing must be retarded from the WSM figures.
Octane boosters and also higher octane modern fuels often contain pretty aggressive solvents are a bit iffy with the materials used in older fuel
systems
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phillippe
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| posted on 3/4/06 at 07:57 AM |
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mgbgt
many thanks once again just as i thought
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Marcus
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| posted on 3/4/06 at 11:45 AM |
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The MG owners club reccommends Castrol Valvemaster plus. It's an octane booster and lead substitute in one. I've used this in my crossflow
for 10k miles, fine so far.
Marcus
Marcus
Because kits are for girls!!
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