A place for general chat about the Jimny. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.
Suppliers/Dealers or anyone selling with a commercial view in mind CANNOT post here unless responding to a specific request of a member in a "wanted" post.
Suppliers include people "breaking for spares" on a regular basis, when purchasing spares members should ask a supplier what they contribute to the running of the forum particularly if contacted by a Private Message
Suppliers or Members who have contributed to the forum can be identifed by the logo.
Suppliers/Dealers or anyone selling with a commercial view in mind CANNOT post here unless responding to a specific request of a member in a "wanted" post.
Suppliers include people "breaking for spares" on a regular basis, when purchasing spares members should ask a supplier what they contribute to the running of the forum particularly if contacted by a Private Message
Suppliers or Members who have contributed to the forum can be identifed by the logo.
Cylinder block measures....
02 Sep 2026 18:23 #265183
by NelsonB
Cylinder block measures.... was created by NelsonB
Hi everyone!
I am strugling for months with an engine JB43 rebuild with +0,50 original pistons.
The manual service (this one piece was given to me by Suzuki repretsentative) only describes how the maximum amount of flatness to be corrected: 0,05mm! He said Suzuki recomends to not accept more than this because integration of sensor signals could not work properly.
However, it did not inform the original size.
As the engine condtioning company did not measure it pre and pos service, I am in the dark and the Jimny is with high consumption and low power. We changed almost every sensor, and I know many other pieces could be involved, I just want to rule out this one.
Best Regards!
I am strugling for months with an engine JB43 rebuild with +0,50 original pistons.
The manual service (this one piece was given to me by Suzuki repretsentative) only describes how the maximum amount of flatness to be corrected: 0,05mm! He said Suzuki recomends to not accept more than this because integration of sensor signals could not work properly.
However, it did not inform the original size.
As the engine condtioning company did not measure it pre and pos service, I am in the dark and the Jimny is with high consumption and low power. We changed almost every sensor, and I know many other pieces could be involved, I just want to rule out this one.
Best Regards!
Please Log in or Create an account to join the conversation.
02 Sep 2026 18:48 #265184
by fordem
Replied by fordem on topic Cylinder block measures....
Which "original" measurements are you looking for?
The original bore diameter (which you can find in the owner's manual) would have been 78.0mm, this, by the way, is not something the company that reconditioned the engine would have been able to measure - if the engine need to be bored oversize, the bores would have been worn long before the block ever got to them.
The original bore diameter (which you can find in the owner's manual) would have been 78.0mm, this, by the way, is not something the company that reconditioned the engine would have been able to measure - if the engine need to be bored oversize, the bores would have been worn long before the block ever got to them.
Please Log in or Create an account to join the conversation.
03 Sep 2026 07:23 #265186
by Busta
Replied by Busta on topic Cylinder block measures....
That measurement is the flatness of the surface of the block, to ensure it seals correctly with the gasket and holds compression. It won't affect any sensors. A compression test will give you an indication if the gasket is sealing correctly.
Please Log in or Create an account to join the conversation.
Less
More
- Posts: 9949
- Thank you received: 1988
03 Sep 2026 17:29 #265190
by Lambert
Temeraire (2018 quasar grey automatic)
R.E.D Retired Extremely Dangerous
Bellerophon (2024 grello van) daily dose of disappointment.
Replied by Lambert on topic Cylinder block measures....
I had the head skimmed on my last one and apparently they did 3 passes to get it flat, never did get a proper answer as to what the actual measurement of material removed was but whatever it was it never effected the running of the car.
Temeraire (2018 quasar grey automatic)
R.E.D Retired Extremely Dangerous
Bellerophon (2024 grello van) daily dose of disappointment.
Please Log in or Create an account to join the conversation.
Time to create page: 0.168 seconds
