DIY: Berk Technology HFC Install

NISMO IX · 01-18-2018, 10:27 PM

Couple Questions:

1) Which one is actually dubbed the "Demon Bolt"?

2) Besides the penetrating oil and maybe a bit of heat, is it better to use sheer force, or "shocking" the bolt by striking the end of extensions and breaker bar with a dead blow hammer?

Jimbo370 · 01-19-2018, 04:41 PM

I finally paid a shop to heat them loose ($400) 3 hrs. improved sound on the stillen hfc . In my opinion this was a not worth the money MOD. I have the extenders on the O2 sensors and still get the PO300 code every month. The demon comes back.

Jayhovah · 01-19-2018, 07:40 PM

Quote:

Originally Posted by NISMO IX

Couple Questions:

1) Which one is actually dubbed the "Demon Bolt"?

2) Besides the penetrating oil and maybe a bit of heat, is it better to use sheer force, or "shocking" the bolt by striking the end of extensions and breaker bar with a dead blow hammer?

1) the top one on each side

2) Whatever works. I ended up using a gigantic breaker bar when our impact wrench failed to do the job.

Couple of notes: Take off your intakes so you can get to it without using swivels. Have bolt extractors on hand if you start rounding it off. The pass side came off relatively easy for us. The drivers side - took two of us hanging on the breaker bar before it finally just broke the stud off (which I consider a success).

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01-19-2018, 04:41 PM	#2 (permalink)
Jimbo370 Enthusiast Member Join Date: Jan 2014 Location: Florida Posts: 466 Drives: 09 black 370z MT Rep Power: 12	I finally paid a shop to heat them loose ($400) 3 hrs. improved sound on the stillen hfc . In my opinion this was a not worth the money MOD. I have the extenders on the O2 sensors and still get the PO300 code every month. The demon comes back.