Hydraulic and mechanical cam interchangability - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Hydraulic and mechanical cam interchangability by Dakotakid on 10 May, 2008 10:19
• I read an earlier post which discussed this topic, but there did not seem to be a definitive answer.
  Can I run a solid lifter camshaft in a hydro head? Are there any negative consequences?
• #1 by Fisher on 10 May, 2008 16:23
• There is lots of banter about this and everyone says something different.  I put an 82 Mechanical Cam in an 86 Hydraulic Head engine that I completely rebuilt and it worked and ran fine.  If fact after I started it up I completely forgot about it.
• #2 by RabbitJockey on 10 May, 2008 17:07
• i always heard you couldn't do it but i never knew why
• #3 by burn_your_money on 10 May, 2008 17:39
• I *thought* I read that someone posted the innerbase circle was larger on the mechanical cam and caused the valves to hang open... but I guess not if you`ve done it.