Just had an issue where my 1997 2.8 daihatsu fourtrak which has been fab for four months. Blew crankshaft seal We replaced and decided to replace cam shaft seal, cam belt kit too. Now runs fine for about twenty mins then blows oil out seals again. Even forced dipstick out. Help. Pulling hair out. Is it pcv valves or what. Please help its my daily drive and I'm stuffed without thanks