Problem: loss of power when heating up - clues for the cause?

[Lynn Eades]

Yes, I would check Chris's suggestion.

[Yeo.NT]

It could be with more ethanol in today's fuels it's boiling off causing the dreaded vapour lock

[cliff]

Hanno change the coil and fuel filter first then go for a drive.

[Mike K]

Hanno

If you remove the engine cover , then run the engine until it gets hot and the problem happens again. Then, remove a spark plug lead and get somebody to hold the lead near an earth approx. 5-6mm away , turn the engine over and look for a spark from the lead to earth . At least you can work out if its a weak spark problem . Mike

[cletrac (RIP)]

I'd bet on the coil. They did that quite regularly. Most people carried a spare coil.

[Richard Farrant]

No one has mentioned the condenser, they can give similar symptoms when they break down.

[Hanno Spoelstra]

Originally Posted by Richard Farrant

No one has mentioned the condenser, they can give similar symptoms when they break down.

Thanks Richard - I was just reading up on faulty condensers while I wrote my reply above.

Hanno

[Hanno Spoelstra]

Thanks all for the tips!

• Coil was new Bosch 6V approx. five years ago, so unlikely to go but will check (will not be before the end of this week).
• In-line disposable fuel filter is changed regularly, but will check again.

Other options:

• What about a bad condenser?
• Distributor cap: arcing inside the bakelite parts?

Methinks the distributor has to come off for an inspection.

Hanno

[Tony Wheeler]

Originally Posted by Hanno Spoelstra

Methinks the distributor has to come off for an inspection.

Perfect opportunity to fit one of these Hanno, and forget about points and condensors forever!

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