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The Pub For General Automotive Related Talk |
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#1 | ||
Starter Motor
Join Date: Jan 2016
Posts: 5
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High all, I have an old pal having problems with sump leaks on his old 21 stud flat head v8, any body got an easy fix? Thanx, road rat.
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#2 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: In my happy place
Posts: 5,432
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I think you'll find very few people here have even heard of a flat head much less have actually seen one.
Only suggestion is he hasn't replace the cap With a plug or something like that, I haven't climbed under mine in 12 months (doing it this Saturday actually) but I think the only vent is the oil Cap at the back
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Pariahs C.C. What could possibly go wrong I post images with postimg.cc (so I don’t forget) |
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#4 | ||
FF.Com.Au Hardcore
Join Date: Aug 2013
Location: Cairns FNQ
Posts: 602
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The days before the PCV valve.
Some of the older motors had a catch can type of affair that was full of steel gauze halfway along the breather tube. This would carbon up and cause some pressure in the sump. The breather caps also had steel gauze inside and had to be washed out at services. Some of those oil leaks on older engines were difficult to stop. Too much crankcase compression ?? |
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#5 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: In my happy place
Posts: 5,432
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your right Mechanic I had a brain fade moment on right hand side as you look at it at the rear towards the bell housing there is a breather tube.
check thats clear
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Pariahs C.C. What could possibly go wrong I post images with postimg.cc (so I don’t forget) |
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#6 | ||
Starter Motor
Join Date: Jan 2016
Posts: 5
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Thanx for your replies guys, my old mate has a 32 ford ute self imported with a very old 21 stud engine, pre oil pump, probably a T model. he rushed ahead and had the motor worked on by unknowing engineers, high lift street cam, more carbies blah blah, now, when motor runs(sweetly) it looses so much oil that he has to turn it off, oil comes out of the vent at front of sump. Everything has been cleaned for the rebuild so blockage is not a problem. This engine is designed to splash oil and were renowned for oil loss, it has low oil pressure, some people say just weld the vent up, but I think that this will cause engine problems if no P C V. The fix by ford for the next engine was to put a internal overflow line in to the top of the valve gear and close the vent. Any one got a simple answer to fix this.
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#7 | |||
FG XR6 Ute & Sedan
![]() Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 22,986
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This shed any light on it: http://www.fordbarn.com/forum/showthread.php?t=3135 and http://www.fordbarn.com/forum/showthread.php?t=97564 noting the comment:
Quote:
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regards Blue Last edited by aussiblue; 13-01-2016 at 11:19 AM. |
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#8 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: In my happy place
Posts: 5,432
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Sorry mate that ones beyond me even the 4 banger flattys I've played with are pump feed
What Aussie Blue has posted looks like a good place to start, Like wise as Xauterus has said Ozrodders is a good wealth of knowlege but it can take a little while for your membership to be activated to the forum worth the wait IMHO you DONT need to join OzErodders which is a hotrod club attached off the side
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Pariahs C.C. What could possibly go wrong I post images with postimg.cc (so I don’t forget) |
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#9 | ||
FG XR6 Ute & Sedan
![]() Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 22,986
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And note that unless significantly modified to specifically address oil leaks they will always be very generous in sharing their oil.
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regards Blue |
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#10 | ||
Starter Motor
Join Date: Jan 2016
Posts: 5
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Thanx Bluey, the 21 stud is not the same as 24 stud, 24 stud had a oil pump, 21 had no pump, with oil spillage being a common problem to 21 stud, I think because of the vent in sump at front of motor, they are known to leak a lot if you take a corner too fast. There must have been a common fix by the early rodders, like blocking up vent hole or whatever. We just don't know what that fix is. Hellllpp.
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#11 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: In my happy place
Posts: 5,432
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actually thats not true, latter 21 studs had oil pumps (I have one)
I wouldn't recommend blocking the breather but perhaps baffling it or fitting a catch can
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Pariahs C.C. What could possibly go wrong I post images with postimg.cc (so I don’t forget) |
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#12 | ||
Starter Motor
Join Date: Jan 2016
Posts: 5
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Thanx snowman, we will just have to assume that there has been something done wrong by the engineer, maybe a broken ring? Oil is pumping out. We will keep looking.
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#13 | |||
FG XR6 Ute & Sedan
![]() Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 22,986
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Quote:
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regards Blue Last edited by aussiblue; 13-01-2016 at 01:53 PM. |
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#14 | ||
FG XR6 Ute & Sedan
![]() Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 22,986
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This tacky pray booth arrestor pad material should be OK too http://www.bestbuyautoequipment.com/...trol-s/808.htm
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regards Blue |
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#15 | ||
FG XR6 Ute & Sedan
![]() Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 22,986
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This also http://www.ebay.com.au/itm/Fly-Racin...MAAOSwQItUIvSF or http://www.ebay.com.au/itm/FLY-RACIN...oAAOSwxYxU0mhi or http://www.ebay.com.au/itm/SMOWMOBIL...nocCrO6eM-lFVA etc Perhaps go talk to a Motorcycle parts place noting you need a fibrous fireproof material that will stop the oil but not the air. Ditto lawn mower / chainsaw parts places.
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regards Blue Last edited by aussiblue; 13-01-2016 at 02:22 PM. |
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#16 | ||
FG XR6 Ute & Sedan
![]() Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 22,986
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Some ideas here too: http://www.fordbarn.com/forum/showth...4276&showall=1
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regards Blue |
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#17 | ||
Starter Motor
Join Date: Jan 2016
Posts: 5
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Thanx to all that replied with info, xauterus, yeti, mechanic, and Aussiblue. Great forum, big help, Aussiblue you are a bewdy mate. Thanx for all that work you did. Digest it all and let you know what's up. Ricco.
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#18 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: In my happy place
Posts: 5,432
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I'd actually like to retract my comment that no one here would have even heard of a flaty
Its been a good discussion
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Pariahs C.C. What could possibly go wrong I post images with postimg.cc (so I don’t forget) |
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#19 | ||
FF.Com.Au Hardcore
Join Date: May 2006
Location: In my happy place
Posts: 5,432
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Some other places (On top of the ford barn) Ive found good advice
https://www.facebook.com/groups/284972548325168/ https://www.facebook.com/groups/FlatheadFord/
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Pariahs C.C. What could possibly go wrong I post images with postimg.cc (so I don’t forget) |
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