Skip to main content ↑ ↓
Topic: Adjusting Isuzu valves (Read 526 times) previous topic - next topic

Adjusting Isuzu valves

While I'm changing the glow plugs is a good time to adjust the valves. What is the
valve clearance. It's a mixed bag as to the clearances on google.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Adjusting Kubota valves

Reply #1 –
I would only go by the manual for yours OR contact manufacturer.

Said another way, I would not trust "if I read it on the internet it must be true" with my valve adjustment specs.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Adjusting Kubota valves

Reply #2 –
The only thing I could find in the manual is when to do valves clearance checks but no
valve clearances.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Adjusting Kubota valves

Reply #3 –
Look on the valve cover decal, if it's still there.
1994 U280
Build #4451
"If everyone is thinking alike, then somebody isn't thinking"

Re: Adjusting Kubota valves

Reply #4 –
Nothing on the valve cover and I have found a manual online and they are 0.20 mm
or 0078 thousand. I put an 8 thousand feeler gage in the first cylinder and they are
quite loose. I will adjust them tomorrow.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Adjusting Kubota valves

Reply #5 –
Peter, valves usually tighten up with age as the valves sink into the seats. Make sure the manual is for your engine.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Adjusting Kubota valves

Reply #6 –
I made a mistake it's a Isuzu engine not a Kubota and is there away to change the
heading.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Adjusting Kubota valves

Reply #7 –
I tried to post the manual but I don't know how. The manual has the right model
number.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Adjusting Isuzu valves

Reply #8 –
Quote from: oldguy –
I made a mistake it's a Isuzu engine not a Kubota and is there away to change the
heading.

DONE.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Adjusting Isuzu valves

Reply #9 –
Thanks Brett. The valves are adjusted and having the glow plugs out makes it a lot
easier to turn the engine over.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Adjusting Isuzu valves

Reply #10 –
Quote from: oldguy –
Thanks Brett. The valves are adjusted and having the glow plugs out makes it a lot
easier to turn the engine over.


Yup, no compression makes it a LOT easier to turn over.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020