I want to have a go at valve gaps.

Do I need to remove the exhaust, heat exchangers to be able to get enough access to do the job? Looks real tight otherwise.

Apologies for such a dumb question.

No. Yes, it is tight, but it's doable. Especially the second time . If you have other engine stuff to do, dropping the engine takes less than two hours. Especially the second time . Links to engine drop video in my signature. Enjoy...