Tons of oil pressure=explosion

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Nov 14, 2023 | 12:21 AM

Slimjim8971

Thread Starter

Intermediate

Joined: Jan 2023

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From: Ryan oklahoma

Tons of oil pressure=explosion

I built me an oil filter housing and hardlined it on my 79 ironhead got it on hooked up and I start her up, 35- 45 seconds later the oil filter exploded so I'm thinking, defective oil filter. I thread in another oil filter and 15 seconds in the oil line explodes now, I'm pissed and a little concerned so I take the damn thing off and go back with just lines and it runs fine. WTH went wrong?

Nov 14, 2023 | 05:13 AM

jake24lt

Stellar HDF Member

Joined: Jan 2017

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From: Massachusetts

Quote:

Originally Posted by Slimjim8971

I would guess, the filter you chose has no bypass valve in it. Find one that does.

Nov 14, 2023 | 05:49 AM

Rogue1

Road Master

Joined: Aug 2018

Posts: 1,103

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From: Ramseur NC

Quote:

Originally Posted by Slimjim8971

My first suggestion would be check the lines going to the oil filter, you may have them reversed. I did that on a 75 Sportster I had and it blew the cap right off the oil tank.

Last edited by Rogue1; Nov 14, 2023 at 05:51 AM.

Nov 14, 2023 | 08:09 AM

Dan89FLSTC

Seasoned HDF Member

Joined: May 2008

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From: South Carolina

You plumbed it backwards, and used a filter with an anti drainback valve.

Nov 14, 2023 | 07:45 PM

TexasScooterTrash

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Joined: Feb 2013

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From: Dallas, Texas

Hardline, as in rigid copper tubing . . . on an Ironhead Sportster. Bad idea. I'm guessing yer 79 rejected your modification. NO rigid oil lines on my 77.