7.3 idi cavitation

79jasper · Nov 11, 2019

Imo, also less likely to see cavitation on a n/a engine.
I've personally seen it on a 93 with a banks turbo.
Cant remember if it was that block, or the replacement that appeared to have the cylinder walls checked. Had a plug in each wall under the valley pan. Pics are on the forum somewhere.

Sent from my SM-N960U using Tapatalk

yARIC008 · Nov 14, 2019

Have you guys not read my cavitation article? I’ve had two N/A engines cavitate through. If you don’t use the system cooling additive it will cavitate through, just a matter of time. Our cylinder walls are so thin and the compression ratio is so high, it’ll make it cavitate as the walls flex.

yARIC008 · Nov 14, 2019

Blackascoal said:
Is it safe to say if you make it to 150k without cavitation you’re probably not going to encounter it? I’m right about there with my 94.

Sent from my iPhone using Tapatalk

No sir, it is not safe to say you won’t encounter it. Add SCAs though to the proper level and then you should be fine though.

yARIC008 · Nov 14, 2019

Thewespaul said:
Well said. I also believe that most the cavitation incident blocks have shown up by now, you almost never see it happen any more.

They’re all susceptible. It’s a design flaw. Use SCAs and you should be fine though.

YJMike92 · Nov 15, 2019

My local machine shop said number 7 and 8 cylinders were the most prone to cavitation.

Jason1377 · Nov 16, 2019

Never knock on wood any coolaint issues and have never changed radiator fluid since I have owned my 1993 f250 n/a for past 5 yrs it currently has 171,580 original miles original motor everything but usual replacement brakes tires n minor matience. Have never had a heater no a/c issue since I owned it.

03wr250f · Nov 18, 2019

when you say our cylinder walls are thin, have you seen how thin 6.7 cummins walls are? our cylinder walls are more than 1/4'' thick
that being said 7&8 are most prone to cavitation, It is still a rare thing to happen, generally on higher milage motors. providing coolant additives were kept up on you will be just dandy.

79jasper · Nov 18, 2019

03wr250f said:
when you say our cylinder walls are thin, have you seen how thin 6.7 cummins walls are? our cylinder walls are more than 1/4'' thick
that being said 7&8 are most prone to cavitation, It is still a rare thing to happen, generally on higher milage motors. providing coolant additives were kept up on you will be just dandy.

They also run way lower compression ratio. Between 16.2:1-19:1 depending on output.
But, cummins does still call for sca.

Sent from my SM-N960U using Tapatalk

7.3 idi cavitation

79jasper

Chickenhawk

yARIC008

Drives really slow

yARIC008

Drives really slow

yARIC008

Drives really slow

YJMike92

Full Access Member

Jason1377

Supporting Member

03wr250f

Full Access Member

79jasper

Chickenhawk

Similar threads

Latest posts

Forum statistics

Members online

Share this page