replacing […] for Read More?

What is your theme and URL to your site?

here is my exerpt

<?php echo limit_words(get_the_excerpt(),30); ?>

here is my function which I have now managed to not show the […] but It is still now showing a link to Read More?!

function limit_words($string, $word_limit) {

	// creates an array of words from $string (this will be our excerpt)
	// explode divides the excerpt up by using a space character

	$words = explode(' ', $string);

	// this next bit chops the $words array and sticks it back together
	// starting at the first word '0' and ending at the $word_limit
	// the $word_limit which is passed in the function will be the number
	// of words we want to use
	// implode glues the chopped up array back together using a space character

	return implode(' ', array_slice($words, 0, $word_limit));

}

I would suggest you read this the_exerpt() Codex

I have now sorted this by adding a new function to a link to the post at the end of my exerpt