Honda-Tech - Honda Forum Discussion - Help identifying vtec head part

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Joey Mitchell

06-08-2019 04:58 PM

Help identifying vtec head part

Ive found that this part is only on vtec heads, and only effects the middle vtec rocker arm. What is it and what purpose does it serve?

https://cimg1.ibsrv.net/gimg/honda-t...24b370df41.jpg
https://cimg6.ibsrv.net/gimg/honda-t...13e5258e46.jpg

Ryanthegreat1

06-08-2019 06:14 PM

Re: Help identifying vtec head part

Lost motion assembly. Keeps the VTEC rocker in contact with the cam when not in VTEC.

Joey Mitchell

06-08-2019 11:10 PM

Re: Help identifying vtec head part

Quote:

Originally Posted by Ryanthegreat1 (Post 51947111)

Lost motion assembly. Keeps the VTEC rocker in contact with the cam when not in VTEC.

Ok makes perfect sense. Guess you wouldn't want it just flopping around in there, tapping and tearing stuff up. Thanks for the answer.

NVturbo

06-11-2019 08:02 AM

Re: Help identifying vtec head part

Make sure you're able to press down on it with your thumb/fingers. The center section spring back up after doing so. If not, it may need replacing.

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