GazB Posted April 1, 2011 Share Posted April 1, 2011 I may have boiuled my clutch fluid last year and want to change my clutch fluid just in case and need a bit of advise. What ever i put in needs to be able to stand heat soak from exhaust, manifold and turbo. What to use? DOT4, 5 or other? They can't be mixed? How can i tell whats in there already? Quote Link to comment Share on other sites More sharing options...
Homer Posted April 1, 2011 Share Posted April 1, 2011 *proper* DOT4 race fluid would be the best choice as a replacement, plus lag the lines and clutch master if not already done. It shouldn't be mixed so best to do a full drain and bleed, I'm sure you know how Quote Link to comment Share on other sites More sharing options...
GazB Posted April 2, 2011 Author Share Posted April 2, 2011 *proper* DOT4 race fluid would be the best choice as a replacement, plus lag the lines and clutch master if not already done. It shouldn't be mixed so best to do a full drain and bleed, I'm sure you know how Thats this weeks jobs sorted then, i thought a full drain would be needed I've just been looking at Opie web site at different grades, didn't realise there was so many choices. Better heat wrap and on my down pipe may help along with doing the lines, a little job has just grown Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 2, 2011 Share Posted April 2, 2011 DOT3, 4 or 5.1 ****NOT**** DOT5 which is a silicone fluid for special applications. Unless the clutch line is almost touching the manifold or turbo none of the fluids will boil Quote Link to comment Share on other sites More sharing options...
GazB Posted April 2, 2011 Author Share Posted April 2, 2011 DOT3, 4 or 5.1 ****NOT**** DOT5 which is a silicone fluid for special applications. Unless the clutch line is almost touching the manifold or turbo none of the fluids will boil I did a couple of runs then had to queue for an hour'ish just creeping forward until i got to the start box, i was by myself so couldn't push car all the way. Would it get that hot gear selection (reverse) would be hard/unable? I let the car cool and all was ok again, been out in car since and alls ok! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 2, 2011 Share Posted April 2, 2011 If the fluid boiled the clutch pedal would either be very soft and spongey, or go right to the floor with no real resistance. You probably got the clutch itself hot. You mention one of the reasons I dislike drag racing and sprinting / hillclimbs. Too much bloody pushing and not enough pedalling Quote Link to comment Share on other sites More sharing options...
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