50 chrysler Posted June 23, 2009 Report Posted June 23, 2009 new guy here. my 50 chrysler is blowing oil out the breather cap I drove it about 250 mile and lost 3 quarts what is going on ?any help would be appreciated thanks. Quote
RobertKB Posted June 23, 2009 Report Posted June 23, 2009 Welcome to the forum. This is a great place with lots of knowledgeable people. If you can't get an answer on this forum, there is no answer. There is a breather pipe on the other side of the engine. Could it be blocked? Sounds like you have a lot of blow by and this could cause a problem but you would have to have an awful lot. I am sure others will chime in with advice and help also. Quote
TodFitch Posted June 23, 2009 Report Posted June 23, 2009 I can't imagine 3 quarts in 250 miles out the filler/breather cap. As posted earlier, check your road draft tube for being clogged (back right side of engine behind/under exhaust manifold). As you drive that tube sticking down is supposed to develop a vacuum because of venturi effect. That draws out crankcase fumes and then fresh air is filtered in the filler cap wire gauze and comes into the engine. Anyway, at idle you might have some fumes come out the filler. But while you are driving it should actually be sucking air in there. I'd be looking around for other sources of oil leaking... Quote
50 chrysler Posted June 23, 2009 Author Report Posted June 23, 2009 I can't imagine 3 quarts in 250 miles out the filler/breather cap. As posted earlier, check your road draft tube for being clogged (back right side of engine behind/under exhaust manifold). As you drive that tube sticking down is supposed to develop a vacuum because of venturi effect. That draws out crankcase fumes and then fresh air is filtered in the filler cap wire gauze and comes into the engine.Anyway, at idle you might have some fumes come out the filler. But while you are driving it should actually be sucking air in there. I'd be looking around for other sources of oil leaking... I was under the impresion that the down draft tube or blowby tube created a vacume to draw air into the crank case and out the breather but I like the way you put it comeing in the breather and out the downdraft tube make more sence I guess I should have thought about it longer but I got concerned with all the oil loss this is the first time its happened Iv had the car for about 14 years and this has never hapened befor I did put a diffrent cap on when this happened and put the old one back on after I saw all the oil on the dist and starter and along the block I cleaned the block a couple years ago and was planning on painting ti but ran out of time we drive the car durring the summer and have a lot of fun with it and winter I am busy with other things but not this winter the motor is comming out and the head is getting shaved if the comp is good Ill leave the insides alone maybe give it a valve job and put hardend seats inI should have the block boiled to get the baked on crud out so I can run reg oil in it well Im rambling so Ill stop now thanks for the info I have some place to start Ben Quote
Don Coatney Posted June 23, 2009 Report Posted June 23, 2009 I did put a diffrent cap on when this happenedBen What kind of cap did you use when this happened? If you remove the cap with the engine running and place the palm of your hand over the top of the tube do you feel any pulsations? If you do you have bad rings or a broken piston. Quote
50 chrysler Posted June 23, 2009 Author Report Posted June 23, 2009 What kind of cap did you use when this happened?If you remove the cap with the engine running and place the palm of your hand over the top of the tube do you feel any pulsations? If you do you have bad rings or a broken piston. hey Don what kind of pulsation do you mean like a blowing and sucking kind of thing like a bellows Quote
wayfarerstranger Posted June 23, 2009 Report Posted June 23, 2009 with that much oil shooting out it sounds like your rubber oil line has sprung a LEAK !! it has happened to me ... check it out ... Quote
TodFitch Posted June 23, 2009 Report Posted June 23, 2009 ...snip... after I saw all the oil on the dist and starter and along the block I cleaned the block a couple years ago ...snip...Ben with that much oil shooting out it sounds like your rubber oil line has sprung a LEAK !! it has happened to me ... check it out ... Good call. I bet you are right that it is the flexible hose that goes to the oil gauge. It attaches to the block close to the base of the oil filler pipe and if it were leaking there could be plenty of oil along the block, distributor and starter. An easy fix if that is the problem. Quote
Don Coatney Posted June 23, 2009 Report Posted June 23, 2009 hey Don what kind of pulsation do you mean like a blowing and sucking kind of thing like a bellows In a healthy engine there will be no pulsations. You will feel nothing. Quote
dirty dan Posted June 23, 2009 Report Posted June 23, 2009 Speaking of rubber oil lines... What is suposed to be in the housing of the down draft tube to act as a filter? My housing is empty execpt for a screen (tacked in) that probably is too large to keep dirt-dawbers out of the engine. Quote
Don Coatney Posted June 23, 2009 Report Posted June 23, 2009 Speaking of rubber oil lines...What is suposed to be in the housing of the down draft tube to act as a filter? My housing is empty execpt for a screen (tacked in) that probably is too large to keep dirt-dawbers out of the engine. Correct air flow in the draft tube is out of the engine not into it. A screen will work well as it has done so for 70 or more years. Quote
TodFitch Posted June 23, 2009 Report Posted June 23, 2009 Speaking of rubber oil lines...What is suposed to be in the housing of the down draft tube to act as a filter? My housing is empty execpt for a screen (tacked in) that probably is too large to keep dirt-dawbers out of the engine. To the best of my knowledge the road draft tube in my 1933 never had a screen or filter of any kind. It certainly does not have one now and there is no evidence it ever had one. I guess the problem of "dirt-dawbers" getting in the engine was only on later cars. Quote
dirty dan Posted June 24, 2009 Report Posted June 24, 2009 To the best of my knowledge the road draft tube in my 1933 never had a screen or filter of any kind. It certainly does not have one now and there is no evidence it ever had one. I guess the problem of "dirt-dawbers" getting in the engine was only on later cars. I've already cleared one "nest" out of the tube. I guess I better hurry up and get this thing on the road so that the tube will get enough oil in it to the point it's no longer appealing. Quote
Plymouthy Adams Posted June 24, 2009 Report Posted June 24, 2009 as animals and insects have evolved over the years and have taken up the automobile as way to go from place to place in their migration then yes the screen had to be put in place... Quote
BobT-47P15 Posted June 24, 2009 Report Posted June 24, 2009 On my '47 P15, that little oil joiner hose is seen just to the right of the oil filter. My old one began leaking due to old age. As a temp measure, I wrapped it with several rounds of black electrical tape. That wasn't a cure, but slowed things down. Took my hose to some local shops, and none could find the correct style fittings that go on the ends of the hose. So, I bought one from the Dodge place in Canada for about $15 plus shipping. These hoses appear right along on ebay. If you can find a local hydraulic shop where you live that has the old style ends available, they can probably build you a new hose. Some guys have used other items as replacements.....let them now chime in. Quote
TodFitch Posted June 24, 2009 Report Posted June 24, 2009 ...snip.. Took my hose to somelocal shops, and none could find the correct style fittings that go on the ends of the hose. So, I bought one from the Dodge place in Canada for about $15 plus shipping. ...snip... I don't recall any particular issue finding a local source for that hose when I did it. Quote
BobT-47P15 Posted June 24, 2009 Report Posted June 24, 2009 That hose end, at least on a P15, has a "reverse flare" or some such thing....and the local folks said that's an old style item they no longer use. I may not be using the right term as it was a while back when I went looking. Went to every hose place in this town. Some have said it wasn't a big problem in their case..... Like everything about these old cars -- all sorts of stories. Quote
martybose Posted June 24, 2009 Report Posted June 24, 2009 You can buy inverted flare to AN adapters, then just use AN fittings in the engine and an AN hose. That's what I did for my 47. Marty Quote
greg g Posted June 24, 2009 Report Posted June 24, 2009 I had one made at a local hydraulic hose place. They do all kinds of hoses and lines for construction equip. etc. took the old one in 10 minutes and 10 dollars later I had a new one. Quote
Jerry Roberts Posted June 25, 2009 Report Posted June 25, 2009 Here are the part numbers for a modern brake hose to replace that oil hose . Parts Master F98915 , ETS5722 , Bendix 77230 . Credit goes to Norms coupe for his posting a couple of years ago . Quote
dirty dan Posted June 25, 2009 Report Posted June 25, 2009 That hose end, at least on a P15, has a "reverse flare" or some such thing....andthe local folks said that's an old style item they no longer use. I may not be using the right term as it was a while back when I went looking. Went to every hose place in this town. Some have said it wasn't a big problem in their case..... Like everything about these old cars -- all sorts of stories. Andy Bernbaum sells those hoses for around $12.00. Quote
Jims50chrysler Posted June 25, 2009 Report Posted June 25, 2009 Welcome to the forum...looking forward to seeing pics of your 50. Jim Quote
n1gzd_plymouth Posted July 7, 2009 Report Posted July 7, 2009 I had that same problem once (oil out dipstick hole) with a 1970 Saab. Took 13 hours at 40 mph (fastest that we could go without loosing oil even faster) to drive home from vacation used about 8 quarts. We had to stuff a rag down the dipstick hole to help keep the oil in. The problem was a broken ring (blowby forcing oil out the wrong places). Rebecca Quote
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