oil filter bypass spring

[flintdawg]

where is the oil filter bypass spring located on our trucks....is it in the block inside of the remote filter adapter?

or is it on the firewall in the filter holder itself.....

i just ask b/c i was told that it was in the filter part....but i had a spring removed from the block when i had the machine work done....any help is appreciated...thanks in advance

 

[4C FED]

There's one in the block & one in the remote filter mount.

 

[Lynn D. Brown]

OF Bypass

OF Bypass

Rick,

I saw some discussion about plugging off this bypass in other posts. Do U know why we would do that and what it accomplishes ?

 

[4C FED]

Welp for me, it's all about clean oil.
When the oil is cold, that pesky bypass opens up and can let whatever circulate through the motor or the turbo.
I want oil going through the filter first.

The drawback of no bypass is that you may turn your oil filter into a jiffypop looking thing if you get on it before the oil warms up. It's probably a good thing to have if you live in a really cold climate and use your truck as a daily driver.
Or you could buy one the the filters out there that have high burst pressures and do away with the bypass. Moroso, K&N, FRAM are some that make such filters.

Lastly, I don't know about the stocker (PF52?) 'cause I've never cut one open, but some filters come equipped with a built-in bypass.

 

[Lynn D. Brown]

OF Bypasses

OF Bypasses

Rick,

Thanx - some good info. R those special models that have high burst pressure ? I guess if U use real light oil, something like 5/30, then maybe U won't ever bypass, but I've always been afraid of that light an oil w Turbo cars.

I'm installing my engine now so I can consider plugging the bypass. Would we have to plug both bypasses ? Or maybe I can put in heavier springs ?

The only thing special I know about the PF-52's, which R good 4 the GN's also, is that they have an anti-drainback valve. I guess this is for filters that sit horizontal or face upwards, so that the oil can't drain out of the filter when the car is off. Altho' that shouldn't be a problem w the SyTy's, which face downwards.

 

[4C FED]

Myclone has a way to bump up the bypass pressure for the valve in the block. I bought one of those plugs from Perma-cool that just snaps in to plug that bypass.

I don't know how you would remove/modify the one in the remote filter mount. I installed a std. spin on adapter so I could run the -AN lines and fittings, so it doesn't have a bypass.

I ran 5W20 when I first fired my motor up. After the first 15-20 min. I dumped it and then ran the regular 10W30.
I don't know if running 5W30 all of the time would cause any problems in the long run.

 

[Lynn D. Brown]

Rick,

Wow, I'd like to meet her !

The only reason I have reservations about light oil is that when I 1st owned my GN back in the 80's I worked for Unocal - the one that made the Racing Gasoline.

I was using Mobil 1 15-50 synthetic, and I had the oil analyzed from an oil change after about 3-5 K. The 50 wt, even w this synthetic oil, had sheared down to 30 weight !