Sludge in coolant

[JohnnyP]

Hi. Have owned my fc for a few weeks now. Starts first time hot or cold, no excessive smoke or steam, rebuilt less than 2000 miles ago. I\'m doing a track day on monday at Bedford and thought I would check my fluids. Pulled the coolant filler cap off and there was a big clump of brown sludge on the cap:eek:  The coolant feels oily but hard to tell what it is. Any ideas?

[m4drx]

if its a film of sludge i would say just dirt etc nothing to worry about.

flush it before track day then check it after and you have your answer.

hth

[JohnnyP]

Thanks for that. Is it ok to flush with tap water then fill with distilled water/antifreeze?

[m4drx]

Thanks for that. Is it ok to flush with tap water then fill with distilled water/antifreeze?

yes fine, alternatively you can use radiator flush from a motor factors but plain water is fine.


:Thumbs-up