Low {er} oil pressure ?
 

One of my motors is running lower oil pressure...Still good..just
lower..60 vs 80.......Also it just sounds differant than it did..
hard to explain...looking for what to start checking.
Thanks

If you had a beak boat that oil pressure would be fine ,,na,,always check it with a mech. gauge ,,electrics aren't much more than and idiot light ,let me know!:D :D

Beak Boat !1 LOL !!!
I should have said...Gaffrig Mechanical guage.......
Thanks for any ideas..where to start looking...

Be sure the oil is the same you have used in the past and that the pan is full. Check temps. If all this is good, take the oil filter off and cut it open. Use a hammer and sharp chisel or a cutter, not a hack saw. Check for metal particles. If you find any, call bobby!! If clean, post what you found.

I put 20w50 in for the spring...Had straight 50 in both motors before...just the one is lower...I wish both where..I'd blame it on oil !! {LOL}
I have a cutter,I will try that first {fingers crossed}
Thanks to both of you guys ! You always step up to help !!!
I will post results........

OK.....How about this ! Filter looked Ok but oil looked Very thin &
smelled of gas...checked level & it was up !
I had problems fouling plugs 1rst time out this year. fiddled around with carbs & it is Ok now...I think a needle stuck or something over the winter..You think that could be it ? Drop pressure 20 lbs ?
I am of course going to change it & go back to straight weight oil.
If it would ever stop raining i could at least test it.

Gas+oil BAAAAAAAD!!!

Ok.....changed the oil......back to straight 40 Racing
Still lower....60lbs vs 80lbs
And I just can't put a finger on it but.......It sounds Diff ??
I am afraid to ask !!!

the multi is the way to go !!! have you cut the filter and checked with meck. gauge ???

I have Gaffrig MECH guages.....
I cut the filter........nothing...
Whatcha think Bobby ????? Thanks for replying !

its hard to tell you've done the easy test and have the best gauges try hooking a mech. gauge at front main on block and tell me what it is ,,,it sound like bear in motor hurt somewhere maybe due to gas thining ,the filter should show trash in it though ,,///was any metal in drained oil did you drain from pan or suck it out dip stick ????

I suck the oil out dipstick, can't get to the drain plug {Cig. Bullet}
Where do I tap in to get a reading from front main?
Will the presure keep getting worse if thats it,or will it come apart? Never lost a main before......

I had a 91 bullet and loved it you tap the front main on the top of pan rail its and allen head plug 1/8 roughly

I could drain mine from the plug in a bag

it gets worse to a point then it pops so get that plug out and
install that gauge :D :D :D

Thanks Bobby...I'm on it !
I'm thinking now....If I do need to pull it it may be time now for a new short block......I have Mark IV blocks...GM cranks already 60& 60 under. The blocks are 60 over....What can i run without changing exhaust {stainless marine} & Intakes { The Blower Shop}...Also keeping my Mech fuel pump...Merlin ?
Do you build Short blocks ? I think i would feel better with new bottom.

Yes, Merlins have bosses for mech. fuel pumps.
Got two of them puppies in mine:cool:

Hey bird dog I like merlin or Dart blocks and Build alot of short and long blocks for Boats / Mo-power is right they have the bosses for the pumps and are very very tough blocks ,,pm ,me if I can help I have both in stock