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Interference Engine?
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Author:  Rosebud [ Thu Aug 29, 2019 11:27 am ]
Post subject:  Interference Engine?

Q: Is the A+ motor an interference engine? In other words, is it possible for the valves to come into contact with the pistons? I have 10:1 compression, a fast road cam, 1.5 rockers, and a standard profile crank. If my timing chain breaks or I experience valve float, will my valves hit the pistons?

Author:  awdmoke [ Thu Aug 29, 2019 9:58 pm ]
Post subject:  Re: Interference Engine?

Most likely yes, not knowing your cam and pistons.
If you were to break a double row timing chain then you have bigger problems. Valve float isn't one of them.

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