Check your Banjo PCV bolt

[abscate]

It took me at least 60 seconds to pass the Rorsach test on that picture. For reference, the banjo bolt occupies about 2/3 of the frame at lower right

[FMradio]

I'm trying to think of creative ways to check the number on the bolt, apart from using small mirrors, a borescope, or taking off the alternator and power steering pump. So far I've thought about putting some Play-Doh on a popsicle stick and pressing it onto the bolt to make an impression of the number.

Inking a piece of thin plastic with a marker, using a popsicle stick to press the plastic against the banjo bolt to cause transfer of the marker onto the banjo bolt, and the remaining ink might make out the numbers. Can use a bingo dauber instead of a marker to ink the plastic.

Alternatively dab the banjo bolt with one popsicle stick covered with some kind of ink, or fresh paint. Then press another flat surface into the banjo bolt to transfer the paint and read the number from the paint that was transferred.

Maybe some dumb ideas here but I kinda want to try it and see if it works.

[jonesg]

i read the engine serial number off the backside of my block by reaching in with my smartphone and took some photos, set the timer to 5 or 10 seconds to allow positioning.

or get a $25- 30 endoscope.
https://www.amazon.com/dp/B0C9MBNYDT/re ... s9dHJ1ZQ==

[MoVolvos]

I'm trying to think of creative ways to check the number on the bolt, apart from using small mirrors, a borescope, or taking off the alternator and power steering pump. So far I've thought about putting some Play-Doh on a popsicle stick and pressing it onto the bolt to make an impression of the number.

Inking a piece of thin plastic with a marker, using a popsicle stick to press the plastic against the banjo bolt to cause transfer of the marker onto the banjo bolt, and the remaining ink might make out the numbers. Can use a bingo dauber instead of a marker to ink the plastic.

Alternatively dab the banjo bolt with one popsicle stick covered with some kind of ink, or fresh paint. Then press another flat surface into the banjo bolt to transfer the paint and read the number from the paint that was transferred.

Maybe some dumb ideas here but I kinda want to try it and see if it works.

.
Good thinking! Gave me the idea to use some melted hot glue on a mirror then gently pressed against the bolt surface and let cool.
.

[FMradio]

I'm trying to think of creative ways to check the number on the bolt, apart from using small mirrors, a borescope, or taking off the alternator and power steering pump. So far I've thought about putting some Play-Doh on a popsicle stick and pressing it onto the bolt to make an impression of the number.

Inking a piece of thin plastic with a marker, using a popsicle stick to press the plastic against the banjo bolt to cause transfer of the marker onto the banjo bolt, and the remaining ink might make out the numbers. Can use a bingo dauber instead of a marker to ink the plastic.

Alternatively dab the banjo bolt with one popsicle stick covered with some kind of ink, or fresh paint. Then press another flat surface into the banjo bolt to transfer the paint and read the number from the paint that was transferred.

Maybe some dumb ideas here but I kinda want to try it and see if it works.

.
Good thinking! Gave me the idea to use some melted hot glue on a mirror then gently pressed against the bolt surface and let cool.
.

Ah that sounds like a neat idea! I actually wasn't sure exactly who where to find the banjo bolts, that would be a nice video idea to make. I don't think it's possible to see the bolt with a small mirror due to its angle, if I was looking in the right spot. I had the bolt replaced recently as part of the PCV service. I thought it would have been really expensive since the PCV parts themselves are expensive online but my Volvo independent mechanic did it for a little over 200 bucks.

[abscate]

$200 for a pCV job is a great price !!

[cn90]

I have done a few of these PCV Banjo bolts.
The pic shown above by @DonnVa is interesting.
The factory banjo bolts from 2004 V70 and 2007 S60 looks exactly as bolt on the RIGHT side of that photo.

I tried to "gently" pry the pin out of the factory bolt but could not.
If you look carefully, it sits in a groove.
I simply don't know how it could get dislodged and destroys an engine?

PS: I wonder if ppl can tig weld the pin so it is welded?

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Banjo-bolt.jpg (31.97 KiB) Viewed 516 times

[jonesg]

I have done a few of these PCV Banjo bolts.
The pic shown above by @DonnVa is interesting.
The factory banjo bolts from 2004 V70 and 2007 S60 looks exactly as bolt on the RIGHT side of that photo.

I tried to "gently" pry the pin out of the factory bolt but could not.
If you look carefully, it sits in a groove.
I simply don't know how it could get dislodged and destroys an engine?

PS: I wonder if ppl can tig weld the pin so it is welded?

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Banjo-bolt.jpg

the ball hammers the bar out,

[cn90]

Wow, the little ball can hammer the pin out... interesting!

[BlackBart]

Yow, now you guys have me worried. I did a PCV replacement on my '04 XC70, and I assume (uh oh) I replaced that........

So the pin and the ball can be sucked into an intake valve and wreak havoc?
Is the ball acting as a check valve depending on vacuum or boost in the intake manifold?

I like the play doh reverse impression idea.