Skymaster Forum  

Go Back   Skymaster Forum > Messages
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old 09-06-20, 12:17 PM
mshac's Avatar
mshac mshac is offline
Registered User
 
Join Date: Aug 2020
Location: North Texas
Posts: 156
mshac is on a distinguished road
Strange engine oil level readings

Drained all the oil out of the rear engine and changed the filter. Before draining, rear oil level read near 8 qts. Let oil drain overnight, so hopefully got every drop out I could.

I added 6.5 qts based on advice I've seen here, and experienced with other motors. Started the engine, got good oil pressure readings, it ran smooth, so I shut it down.

I checked the dipstick, and the oil was showing near 4 qts. I thought it would come up in few moments so I checked it again later, but still barely over 4 qts!

No oil has leaked out. In fact I cleaned the engine after the oil change. Its spotless. Why do I read 4 qts when I put in 6.5 qts???

Logic would say its the wrong dipstick, with incorrect markings. If that's true, then the 8 qt marking would be more like 10.5 qts - no wonder it was blowing out oil!

I caught all the old oil in a jerry can, so I could measure it if needed.

My next step is to verify the PN on the dipstick, but have any of you ever experienced anything similar?
Reply With Quote
  #2  
Old 09-06-20, 12:52 PM
Jhogan0101's Avatar
Jhogan0101 Jhogan0101 is offline
Registered User
 
Join Date: Mar 2019
Location: Philadelphia
Posts: 75
Jhogan0101 is on a distinguished road
I think the reason is because the original engines didnt have oil filters they had screens.
The oil filter is taking up the difference.
__________________
337B
Philadelphia PA
N337WT
Reply With Quote
  #3  
Old 09-06-20, 12:53 PM
mshac's Avatar
mshac mshac is offline
Registered User
 
Join Date: Aug 2020
Location: North Texas
Posts: 156
mshac is on a distinguished road
Quote:
Originally Posted by Jhogan0101 View Post
I think the reason is because the original engines didnt have oil filters they had screens.
The oil filter is taking up the difference.
That occurred to me. but I don't think the filter can hold 2.5 qts of oil, can it? Also, I checked the TSIO360 engine manual, and it shows the oil filter adapter and oil filter as original design equipment. By 1978, I believe Continental was putting oil filters on most engines from the factory.
Attached Images
File Type: jpg tsio-360 oil filter.JPG (61.5 KB, 43 views)

Last edited by mshac : 09-06-20 at 01:00 PM.
Reply With Quote
  #4  
Old 09-06-20, 09:39 PM
Jhogan0101's Avatar
Jhogan0101 Jhogan0101 is offline
Registered User
 
Join Date: Mar 2019
Location: Philadelphia
Posts: 75
Jhogan0101 is on a distinguished road
Maybe check and see if both dipsticks are the same. Cant imagine you have 2 that are incorrect.
I would go with whats on the dipstick.
I now keep my naturally aspirated engines at 6 qrts instead of 8.
Much happier w 6 now.
__________________
337B
Philadelphia PA
N337WT
Reply With Quote
  #5  
Old 09-06-20, 10:32 PM
mshac's Avatar
mshac mshac is offline
Registered User
 
Join Date: Aug 2020
Location: North Texas
Posts: 156
mshac is on a distinguished road
Quote:
Originally Posted by Jhogan0101 View Post
Maybe check and see if both dipsticks are the same. Cant imagine you have 2 that are incorrect.
I would go with whats on the dipstick.
I now keep my naturally aspirated engines at 6 qrts instead of 8.
Much happier w 6 now.
Thanks for the tip Philly - I agree no need to always run full of oil. Maybe on a long cross-country, but that's about the only time I can think of I'd want full oil.
Reply With Quote
  #6  
Old 09-07-20, 03:33 PM
fsnewton's Avatar
fsnewton fsnewton is offline
Registered User
 
Join Date: Jun 2016
Location: S43
Posts: 33
fsnewton is on a distinguished road
Oil Level

Same here. I realized after the first two oil changes (and after removing lots of oil from the AC belly) that the dipsticks weren’t calibrated. We put in 8 quarts and it reads 6 quarts. Before that I thought my engines were “burning” oil but it seems it’s just been blown out the breather tube. I use the 6 quart mark now (knowing that I filled it with 8) until I can get the dipstick calibrated.
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 04:01 PM.


Powered by vBulletin® Version 3.6.9
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.