ive just bene tryin to sort a leak, i fitted a new thermo housing etc on my mk1 focus RS, and not wanting to tighten the screws too much i didnt, but now its leaking i have tweaked them abit more, but may have just gone a tad too much,

what am i in for? another new thermo or just a bigger screw?

i think its the output or input pipe on the front of it with the star screws going into it