Daf 66 has.no power

[triumph66]

An update on my DAF 66. Dave, the mechanic, fitted the new plugs & set up the ignition timing today but still no power. He is not sure if the carb is ok. He also checked the brakes and the front need a n/s front calliper and rear brakes are good but one cylinder is leaking on driver's side. Also the vacuum solenoid valve under the bonnet has an outer rubber gaiter which collapses under load of engine. I will order the appropriate parts accordingly.

i bought a Solex rebuilt kit too a few weeks ago for the carb.

Any tips or views on the lack of power??! Your advice and thoughts would be much appreciated.

[andrewthe33]

Assuming your mechanic has done all the obvious things, such as checking the timing, valve clearances, condition of the plugs and points, cleanliness of the filters and the action of the capacitor (if there's a big spark when the points are forced apart, it's not working properly!) then I'd suggest doing a compression test on each cylinder; a big difference might suggest a head gasket failure, which will mean lack of power. Have you blanked off the vacuum pipe at the inlet manifold before doing any tests? If not, the loss of vacuum will cause the engine to lack power and to run badly, if at all.

Try Easystart down the carb & see if it runs better; this would suggest an incorrect mixture. If spraying WD40 around the carb makes it run better there's an air leak in the carb somewhere-often on the mounting to the top of the inlet manifold.

These are just off the top of my head. I'll try to come up with some other thoughts later.

[triumph66]

Thanks Andrew