Club 80-90 Forums

I've not driven my van much , it's been a restoration project , carbs were running Rich and the engine was burning a lot of oil , so engine out , stripped down , valves worn , guides worn , heat exchangers melted inside , go to order new valves and guides , and the cylinder heads have a different ratio of size there 18.00 cc cylinder heads with a bigger intake valves and bigger exsaust valves but the ratio of differance between the two means the heads might tend to overheat , ? Has anyone had any experience of 1800 heads on a 2.0 engine ,recipe for disaster also the od of the guides are massive , heads not cracked tho thanks for any advice ,

Only the early AP 1.8 had larger valves 41mm in and 34mm ex against the later AP & CU 39.3 in 33mm ex.
The heat exchangers use different port mountings oval for 1.8 square for CU, round port heat exchangers don't fit CU engine fan housings.

Ok thanks ,I'm going to try and upload some pictures to try and explain , thank you