fuel pump pushrod wont engage cam - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer fuel pump pushrod wont engage cam

Print Thread

fuel pump pushrod wont engage cam #1245229 06/04/12 12:29 PM 06/04/12 12:29 PM
Joined: Feb 2003 Posts: 2,138 tucson az F frank OP top fuel
frank OP top fuel F Joined: Feb 2003 Posts: 2,138 tucson az	Anyone ever run into this? The fuel pump pushrod, a new comp cams rod, will not engage the cam. Seems to be blocked. I'll push up as far as it will go and rotate the engine there is no movement. Engine is a 440

Re: fuel pump pushrod wont engage cam [Re: frank] #1245230 06/04/12 02:30 PM 06/04/12 02:30 PM
Joined: Aug 2003 Posts: 43,163 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,163 Bend,OR USA	Time to pull the timing cover and camshaft to see if it(camshaft) has a ecentric on it for the mechanical fuel pump rod Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: fuel pump pushrod wont engage cam [Re: frank] #1245231 06/04/12 03:46 PM 06/04/12 03:46 PM
Joined: Feb 2003 Posts: 1,228 Maple Valley, WA 70mopes pro stock
70mopes pro stock Joined: Feb 2003 Posts: 1,228 Maple Valley, WA	Do you have an old OEM piece you can compare with? At the very least put something in there and bottom it to get a feeling for how far it is going in before contacting cam and compare to the max depth your CC piece is going in to find out if the CC rod is bottoming against cam or in fact getting blocked/stuck.

Re: fuel pump pushrod wont engage cam [Re: Cab_Burge] #1245232 06/04/12 05:19 PM 06/04/12 05:19 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Quote: Time to pull the timing cover and camshaft to see if it(camshaft) has a ecentric on it for the mechanical fuel pump rod Big Block fuel pumps run off a cam lobe.. I am truckless..

Re: fuel pump pushrod wont engage cam [Re: 340SHORTY] #1245233 06/04/12 05:24 PM 06/04/12 05:24 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	How about using a long dowel the right diameter and seeing if it moves when you turn the engine? I had a friend with a 383 station wagon that stranded his family on a vacation when the push rod wore just enough to not pump gas any more. So if the dowel shows there is a lobe in the engine, then it's just a matter of getting a long enough pushrod. On the other hand how certain are you that the camshaft is turning? OKAY, time for a Carter P4070 Street Pump. Mechanical pumps are for the birds. R.

Re: fuel pump pushrod wont engage cam [Re: dogdays] #1245234 06/04/12 05:37 PM 06/04/12 05:37 PM
Joined: Jan 2003 Posts: 1,606 westerly, ri. usa 4 440lebaron top fuel
440lebaron top fuel 4 Joined: Jan 2003 Posts: 1,606 westerly, ri. usa	ya need to turn engine over 2 revalutions for cam lobe to move pushrod all parts are sold as is, all parts are considered used no warranties or returns paypal/check/money order, shipping is from zip 02891, buyer pays paypal fees 24% IRS 1099A plus 3% of part price, check/money order preferred site is not monitored 24/7 there might be a delay in response

Re: fuel pump pushrod wont engage cam [Re: frank] #1245235 06/04/12 09:23 PM 06/04/12 09:23 PM
Joined: Feb 2003 Posts: 2,138 tucson az F frank OP top fuel
frank OP top fuel F Joined: Feb 2003 Posts: 2,138 tucson az	I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies.

Re: fuel pump pushrod wont engage cam [Re: frank] #1245236 06/05/12 12:48 PM 06/05/12 12:48 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	That's gotta be a first. OKAY, for sure it's time for a Carter P4070 Street Pump. Mechanical pumps are for the birds. I've been running a Carter electric pump since 1984. Mount the pump near the fuel pump and use the rubber insulators to dampen vibration. One wire from an ignition-controller source will run it. R.

Re: fuel pump pushrod wont engage cam [Re: frank] #1245237 06/05/12 01:04 PM 06/05/12 01:04 PM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	Quote: I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies. Is this a new cam?

Re: fuel pump pushrod wont engage cam [Re: 64Post] #1245238 06/05/12 03:10 PM 06/05/12 03:10 PM
Joined: Feb 2003 Posts: 2,138 tucson az F frank OP top fuel
frank OP top fuel F Joined: Feb 2003 Posts: 2,138 tucson az	Quote: Quote: I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies. Is this a new cam? yes

Re: fuel pump pushrod wont engage cam [Re: frank] #1245239 06/05/12 08:02 PM 06/05/12 08:02 PM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	Quote: Quote: Quote: I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies. Is this a new cam? yes Roller cam?

Re: fuel pump pushrod wont engage cam [Re: 64Post] #1245240 06/05/12 08:57 PM 06/05/12 08:57 PM
Joined: Feb 2003 Posts: 2,138 tucson az F frank OP top fuel
frank OP top fuel F Joined: Feb 2003 Posts: 2,138 tucson az	Quote: Quote: Quote: Quote: I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies. Is this a new cam? yes Roller cam? Yes it's a roller

Re: fuel pump pushrod wont engage cam [Re: frank] #1245241 06/05/12 09:52 PM 06/05/12 09:52 PM
Joined: Aug 2003 Posts: 8,716 Baltimore/Denver 64Post master
64Post master Joined: Aug 2003 Posts: 8,716 Baltimore/Denver	Quote: Quote: Quote: Quote: Quote: I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies. Is this a new cam? yes Roller cam? Yes it's a roller Thanks. I was just curious about something. The lack of an eccentric sorta gave away it was a roller but I had to ask anyway.

Re: fuel pump pushrod wont engage cam [Re: 64Post] #1245242 06/05/12 11:58 PM 06/05/12 11:58 PM
Joined: Jan 2003 Posts: 75,005 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,005 U.S.S.A.	Quote: Quote: Quote: Quote: Quote: Quote: I found out what is wrong. At first I hought the rod was not comming in contact with the cam because I could not feel any movement or resistance in the rod when the engine was turned over by hand. Using a borescope I discovered the rod is contacting the cam. The cam does not have a fuel pump lobe. Thanks all for your replies. Is this a new cam? yes Roller cam? Yes it's a roller Thanks. I was just curious about something. The lack of an eccentric sorta gave away it was a roller but I had to ask anyway. My comp solid roller has a fuel pump lobe on it .

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1