The type 4 engien came out in 1973 and was installed in the Type 2 Volkswagen Bus. This early engine had solid lifters, mechanical fuel pump, carbs, and was 1700 cc. In 1975 it was upgraded to electic fuel pump, fuel injection, 1800cc - still solid lifters. In 1976-1977 it bacame a 2.0 liter with solid lifters, fuel injection and internally was very different than the 1700 or 1800. Different heads, cam, crank, rods, pistons...etc. The case is still virtually the same and still a type 4. In 1978 - 1982 the 2.0 was upgraded to hydraulic lifters. The case is still the same as a 1977 case but the cam and pushrods are different. You can install hydraulic lifters and cam into a 1977 motor.
The reason some call this a Porsche motor is that in 1973 this engine was introduced in the Porsche 914 (mid engine) The main differences between the Bus engine and Porsche engine was the design of the heads and dipstick location. Everything else is virtually the same. If I were to build a type 4 engine for an airplane it would probably be the later 1978 engine with hydraulic lifters. Some drawbacks to these engines were the fact that sometimes the lifters do bleed down, but the arent that hard to change out if worn bad. Also the heads had a tendance to drop valves but there are a couple companies that sell "100,00 mile heads" that arent supposed to drop seats. Bang for the buck though - I still would stick with my Corvair even though Ive built many a type 4 and drive one on a daily basis (1980 Vanagon). If you have any more questions - Just holler... Bill Clapp Marty Martin <martygmar...@gmail.com> wrote: Hey engine Guru's Has or does anyone make Hydrolic lifters for the type IV engines. Or, is it just the solid lifters for this engine? Marty Martin _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
