Ducati Monster Forum

powered by:
December 21, 2024, 07:25:46 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: No Registration with MSN emails
 
   Home   Help Search Login Register  
* Discussion Boards
Introduce Yourself
FAQs and Policies

General Monster Forum
Remembering our friends...in Memorium
Riding Techniques
Tutorials
Tech
Accessories & Mods
Gear
Racing & Trackdays
Stolen Motorcycles

No Moto Content
Board Tech Issues

Local Club Boards
BOMb
RCP

* Sponsors
Valley Desmo Service
California Cycleworks
MotorcycleGear.Com
Monsterparts
Minor Sponsor Board
Sponsor Info

* Flea Market
Monsters for Sale
Monsters Wanted
Other Bikes
Parts for Sale
Parts Wanted
Gear for Sale
Misc for Sale/Wanted

Pages: [1]   Go Down
« previous next »
  Print  
Author Topic: Which compression tester should I get?  (Read 1811 times)
stopintime
Hero Member
*****
Offline Offline

Posts: 9043


S2R 800 '07
« on: September 24, 2023, 02:41:43 AM »
My engine guy asked me to do a compression test to help our diagnostic work.

Fuel prices makes it cheaper to buy a kit and do it myself, rather than travel two hours t/r to my dealer (after just one use).

The cheapest kit has 14 and 18 mm thread mounting pieces, but also a coned rubber thingy. https://www.biltema.no/en-no/car---mc/workshop-equipment/test-instruments/compression-testers/compression-tester-2000016979

The other has more stuff  https://www.biltema.no/en-no/car---mc/workshop-equipment/test-instruments/compression-testers/compression-tester-petrol-2000022140
Logged
252,000 km/seventeen years - loving it
ducpainter
The Often Hated
Flounder-Administrator
Post Whore
*****
Offline Offline

Posts: 78831


DILLIGAF
« Reply #1 on: September 24, 2023, 03:22:13 AM »
If the cheaper one has the threaded adapters, it will be fine. It doesn't show any in the photos.  Huh?

The rubber cones work, but can be a PITA.
Logged
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
stopintime
Hero Member
*****
Offline Offline

Posts: 9043


S2R 800 '07
« Reply #2 on: September 24, 2023, 03:39:42 AM »
Quote from: ducpainter on September 24, 2023, 03:22:13 AM
If the cheaper one has the threaded adapters, it will be fine. It doesn't show any in the photos.  Huh?

The rubber cones work, but can be a PITA.

The cheaper one has a 14mm adapter. Our plugs are 12, I believe. Rubber PITA because?
Logged
252,000 km/seventeen years - loving it
ducpainter
The Often Hated
Flounder-Administrator
Post Whore
*****
Offline Offline

Posts: 78831


DILLIGAF
« Reply #3 on: September 24, 2023, 03:45:01 AM »
Quote from: stopintime on September 24, 2023, 03:39:42 AM
The cheaper one has a 14mm adapter. Our plugs are 12, I believe. Rubber PITA because?
Sometimes it's a pain to hold it in place and operate the starter switch.
Logged
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
stopintime
Hero Member
*****
Offline Offline

Posts: 9043


S2R 800 '07
« Reply #4 on: September 24, 2023, 11:40:00 PM »
For a more specific piston to cylinder test, they recommend pouring a teaspoon of oil in the spark plug hole. That should spread out nicely in the vertical combustion chamber, but what about the horizontal? Spray another liquid in the hole? WD40? Silicone spray? Chain lube?
Logged
252,000 km/seventeen years - loving it
Howie
Post Whore
******
Offline Offline

Posts: 17273
« Reply #5 on: September 25, 2023, 04:17:44 AM »
Quote from: stopintime on September 24, 2023, 11:40:00 PM
For a more specific piston to cylinder test, they recommend pouring a teaspoon of oil in the spark plug hole. That should spread out nicely in the vertical combustion chamber, but what about the horizontal? Spray another liquid in the hole? WD40? Silicone spray? Chain lube?

Good question.  My best guess would be fogging oil.
https://www.bing.com/shop/productpage?q=engine+fogging+oil&filters=scenario%3a%2217%22+gType%3a%2212%22+gId%3a%22156673970157%22+gIdHash%3a%220%22+gGlobalOfferIds%3a%22156673970157%22+AucContextGuid%3a%220%22+GroupEntityId%3a%22156673970157%22+NonSponsoredOffer%3a%22True%22&productpage=true&FORM=SHPPDP&browse=true 

A more conclusive test would be a cylinder leak down test.



The tool is awfully expensive for a one time use, but any competent local shop should be able to perform this test.
Logged
stopintime
Hero Member
*****
Offline Offline

Posts: 9043


S2R 800 '07
« Reply #6 on: September 25, 2023, 12:33:30 PM »
Adapter is fitted finger tight?
Logged
252,000 km/seventeen years - loving it
ducpainter
The Often Hated
Flounder-Administrator
Post Whore
*****
Offline Offline

Posts: 78831


DILLIGAF
« Reply #7 on: September 25, 2023, 12:50:59 PM »
Quote from: stopintime on September 25, 2023, 12:33:30 PM
Adapter is fitted finger tight?
Yes. The o-ring should seal it.
Logged
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
Pages: [1]   Go Up
  Print  
« previous next »
 
Jump to:  


Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder 		Valid XHTML 1.0! Valid CSS!
SimplePortal 2.1.1