Hi all. Wonder could any of you help with a braking problem. I have 2 door classic with a 2.8 Daihatsu diesel engine. I went to drive out of the yard today only to find that on applying the brakes I had a very hard pedal with no braking power. I could hear some vacuum when pressing the pedal but the feel was all wrong. On further investigation after removing the vacuum hose to the servo to check for vacuum, I found a flow of oil running out of the hose. The Daihatsu alternator has a unit on the rear that acts as the vacuum pump and the oil pump so guessing there must be a seal of some description between the two that has blown. Anyway, there was good vacuum when I ran the engine and put my glove to the end of the hose so the fact that there was oil there at all is baffling seeing as the vacuum is sucking back to the pump????? My question is does anyone know of anywhere to get a rebuild kit for a servo. Paddocks only have post 1985 model year listed and mine is 1978.....

Thanks all.

i had this problem, found three callipers had pistons seized.

YOREVOL said:

i had this problem, found three callipers had pistons seized.

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I have thought of that but I drove it on Saturdy and it was fine.....

mine was fine untill creeping out of junctions and a second application of the brake pedal resulted in no brakes, and being auto it kept moving forward no matter how hard i pressed the pedal.

YOREVOL said:

mine was fine untill creeping out of junctions and a second application of the brake pedal resulted in no brakes, and being auto it kept moving forward no matter how hard i pressed the pedal.

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Looks like you have a bit of investigating to do then. You should still have some brake even if the servo is down. You should be able to get a replacement diaphragm, that is most likely what has failed. Easy enough to change.

Its been a while but I put a 2.5 daihatsu in my 2 door classic and it had the same alternator set up, think there is an oil flow and return pipe to vac pump have you checked to see if return pipe is clear ?

if you av oil in vac line then it must be the alternator driven vac pump...

oil can not appear in servo from nowhere else.end of.

ASSUMING its oil...can only assume you are clued up enough to tell difference between oil and brake fluid....

so black engine oil (dirty diesel)= fecked vac pump

most old vac pumps bolted to alternators have oil feed via flexy/solid pipe from engine..seal in vac pump goes awol..common..

if you need servo..i may av one..i may not..but i may..cant remember..dont use them on my 2 doors, fit hydroboost..