Re: Low Oil Pressure After Oil Filter Change
[Re: NITROUSN]
#2952197
08/09/21 08:51 PM
08/09/21 08:51 PM
|
Joined: Aug 2019
Posts: 9,572 Super Spudsville
Mr PotatoHead
Half Baked
|
Half Baked
Joined: Aug 2019
Posts: 9,572
Super Spudsville
|
If this is your current setup...
340 (234/238@.050, .590"/.603") Solid FT, Yella Terra 1.65 rockers, 9.7:1, 63cc Sidewinders (Bowl Ported),RPM intake, QF SS-750 Annular DP, MSD Street Fire Ign., & TTI's. 727/Dynamic 9.5" 3800, TF-2, & 3:91's
I wonder if it was on the tight side of life?
STOP POTATO HATE!
|
|
|
Re: Low Oil Pressure After Oil Filter Change
[Re: Mr PotatoHead]
#2952219
08/09/21 09:20 PM
08/09/21 09:20 PM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
Mr P may be right. I rebuilt the top end a few times and now it appears that it is time to get the bottom end straighten out.
The crank has some scratches by sight but the fingers did not feel much. It is time to rethink the numbers matching stock stroke thing.
Thank you all for your help! I learned a few things and that is what it is all about for me.
D
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
|
|
|
Re: Low Oil Pressure After Oil Filter Change
[Re: NITROUSN]
#2952255
08/09/21 10:08 PM
08/09/21 10:08 PM
|
Joined: Aug 2019
Posts: 9,572 Super Spudsville
Mr PotatoHead
Half Baked
|
Half Baked
Joined: Aug 2019
Posts: 9,572
Super Spudsville
|
Parts a XXXX to get these days, just a thought but you could always get your crank cut with a bit more clearance and save finding the extra .001 bearings and if your skirts are still ok send them out to get coated or re coated hone and go.
Not impossible but its a chore currently to get from A to Z without a parts issue.
On the other side of the coin if your wanting to stroke its not going to get cheaper as parts prices and machine shop prices continue on the rise.
A lot of good folks on here helping others with parts if you put a want ad up.... got me out of a pinch a few times.
I hope you post pics of your tear down, interesting combo and as well with the rockers you use.
STOP POTATO HATE!
|
|
|
Re: Low Oil Pressure After Oil Filter Change
[Re: Mr PotatoHead]
#2952371
08/10/21 10:25 AM
08/10/21 10:25 AM
|
Joined: Jan 2003
Posts: 15,526 Omaha Ne
TJP
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 15,526
Omaha Ne
|
While thinking this through and you approach to resolving it, Do not forget about the cam bearings, valve guides, Piston skirts, cylinder walls, rockers and shafts etc. I'm thinking this motor had something floating around inside likely before you bought it. What it was is anyone's guess. A cam lobe would be high on my list of suspicions. I can't remember when the ZDDP thing surfaced but alot of people were eating camshafts about that time, 1999-2000 ? I would pull the motor and do a complete teardown/inspection/rebuild. Or buy a crate from a reputable source, and sell what you have to recoup some $$
|
|
|
Re: Low Oil Pressure After Oil Filter Change
[Re: YO7_A66]
#2968059
09/28/21 07:28 AM
09/28/21 07:28 AM
|
Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
OP
master
|
OP
master
Joined: Jan 2003
Posts: 5,444
Indiana
|
I took these pictures late last night but as I was looking at them this morning, I found a shiny lobe in this picture. I will check that out closer tonight.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
|
|
|
Re: Low Oil Pressure After Oil Filter Change
[Re: lewtot184]
#2968113
09/28/21 11:09 AM
09/28/21 11:09 AM
|
Joined: Jan 2003
Posts: 10,759 North Dakota
6PakBee
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 10,759
North Dakota
|
i would still yank the intake and make sure that plug at the back of the drivers side lifter galley isn't missing. never the less the bottom end is bad. looks like trash ran thru the engine or it was put together dirty. too much rpm with half groove mains and low oil pressure/supply ain't good. if the cylinder bores aren't wrecked i'd just clean the bottom end good, ring and bearing, and drive it some more. I forgot that plug once on a 360. During the cam break in, the lifters were rattling and the oil pressure dropped from about 50# to about 10# IIRC. Pulled the distributor and oil pump gear to get the pre-lube shaft in and when I started, there was no mistaking the flood of oil coming out the rear of the left side galley! Haven't forgotten one of those since (have found new mistakes to make).
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
|
|
|
|
|