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914World.com _ 914World Garage _ Heat Exchangers

Posted by: Jaymann Jun 15 2010, 04:55 PM

Can anyone answer a question on heat exchangers?I am trying to replace some old ones.The car is a 1975 1.8L 914,I bought some nice used ones.But they are different.They are smaller in lenth,and have 2 tubes, going to the muffler.The orgianals, are longer ,and only have 1 tube per exchanger, going to the muffler.The muffler is a burst 1.8L and has only 2 ports to connect the heat exchangers.Whats the deal???Thanks for the help Jason

Posted by: poorsche914 Jun 15 2010, 05:05 PM

The '75-'76 heat exchangers were different from the earlier years. The SS exhchangers are available for either 2.0 muffler or 1.7/1.8 muffler. The difference being the 2.0 pipes are straight at the end and the 1.7/1.8 have a bend up. Plus, the distance between mounting points, once installed, is different.

Look at your SS exchangers to see what kind they are - straight = 2.0 and bend = 1.7/1.8. You will then have to get the appropriate muffler to match.

Posted by: Cap'n Krusty Jun 15 2010, 05:06 PM

The pipes you bought are for a '74. Your car came with a different type. Many folks choose to replace the late type with early units, but that requires a nimber of other parts to be changed, including the muffler and the muffler hanger, as well as misc. heater tin. I have some pretty nice late type HEs for sale.

The Cap'n