rod knock ? help please

[Wicked_Sludge]

sounds good. maybe you should undercoat the frame while your at it, since it'll be clean...

 

[WNY964x4]

sounds good. maybe you should undercoat the frame while your at it, since it'll be clean...

if it hadn't been in new york for the past 4 years , it was in virginia before that , i would , but it is already starting to rust , and if i do not sand blast it first and i just undercoat it , it will rot out faster , f**kin new york and their go**amn road salt , once i get the time , i will sandblast and undercoat it

 

[Wicked_Sludge]

por15

 

[WNY964x4]

por15

forgive me for sounding like an idiot , but what does that mean , and what did IIRC in your previous post stand for ?

 

[Wicked_Sludge]

por15 is a chemical that converts rust to primer. you paint it on right over the rust...cuts down on surface prep tremendously.

IIRC - If I Recall Correctly

 

[WNY964x4]

por15 is a chemical that converts rust to primer. you paint it on right over the rust...cuts down on surface prep tremendously.

IIRC - If I Recall Correctly

ic , ic , i will have to check that out , all i know is that my new sploder only has one bad spot , and that is the cubbyhole where the rear washer bottle , otherwise , the whole truck was undercoated , so it is mainly clean , and that helped with my discovery today

 

[Wicked_Sludge]

what discovery?

 

[WNY964x4]

this little discovery , still there after 17 years of new york weather , thank god all the owners have been mechanics , the first one had it completly undercoated

idk what that second thing is

 

[Wicked_Sludge]

haha, ive never had a vehicle with the original sticker intact...cool deal

 

[WNY964x4]

haha, ive never had a vehicle with the original sticker intact...cool deal

yea , one of the requirements i had to do for class was remove seats and carpet , we were just pulling the carpet out and i noticed it right when my buddy was about to step on it , i was like back up and just hand me the carpet , it seriously took me like 5 to 10 minutes to carefull peel it off the floor pan without destroying it

 

[WNY964x4]

commencing the pics

my chainfall

our f-150 7700

our 1995 F-Super Duty bucket truck and the trailer

our 1939 Ferguson

my 82 Olds Cutlass Calais

me getting to the last trans bolt

back out of the barn

engine bay

 

[fixizin]

Before You rule the pump as the cause of the lack of pressure check the camshaft bearings. It is rare but I have seen in the past that you can lose oil pressure due to a lot of different things. But The bearings in the engine are the most common things. And if you are pulling the engine... Take Wicked's advise... Trust me... Trust him.

OK, help me learn here... cause and effect... are there 2 different scenarios that can/do happen? i.e.:

1) Oil pump goes bad, and inadequate oil flow to bearings causes bearing scorch/seizure/failure; and

2) Bearing(s) become worn/UNDERsized for some other reason, and the oil-feed holes to bearings become "wide open", and lack of back-pressure causes low oil pressure to the rest of the engine?

Thanks in advance, (gonna re-read those threads on how/where to mount REAL mechanical oil P gauge...)

 

[almostclueless]

OK, help me learn here... cause and effect... are there 2 different scenarios that can/do happen? i.e.:

1) Oil pump goes bad, and inadequate oil flow to bearings causes bearing scorch/seizure/failure; and

2) Bearing(s) become worn/UNDERsized for some other reason, and the oil-feed holes to bearings become "wide open", and lack of back-pressure causes low oil pressure to the rest of the engine?

Thanks in advance, (gonna re-read those threads on how/where to mount REAL mechanical oil P gauge...)

Basically yes. Bear in mind the oil pump is the first thing to get oil, so they rarely wear out IMO.....it's more likely their drive system fails (like a sheared pin on the dizzy).


IMO, 9 times out of ten, worn bearings in the engine are the cause of low oil pressure.

 

[WNY964x4]

OK, help me learn here... cause and effect... are there 2 different scenarios that can/do happen? i.e.:

1) Oil pump goes bad, and inadequate oil flow to bearings causes bearing scorch/seizure/failure; and

2) Bearing(s) become worn/UNDERsized for some other reason, and the oil-feed holes to bearings become "wide open", and lack of back-pressure causes low oil pressure to the rest of the engine?

Thanks in advance, (gonna re-read those threads on how/where to mount REAL mechanical oil P gauge...)

your first situation was hte most common one , when the pump goes bad it no long feeds enough oil to the bearing , which causes them to "spin" , basically they wind up seizing and one spins over onto the other

the second one is less common , it is common in extremely high mileage engines , that have had no work done to them.

my case was number 1 , my oil pump went for some reason and i no longer had adequate oil to the bearings

my engine had 156k on it when this happaned , situation 2 usually happens above 300k miles , the only other time the camshaft is involved is if the gear connecting the cam to the pump breaks , as the pump is mechanically driven , and i believe it is by the camshaft

 

[almostclueless]

your first situation was hte most common one ,

You must live in the bermuda triangle of engines. I've NEVER seen a bad pump....and only one or two jammed ones (crap gets into the pump and locks it up).