You know how they have that plug on the top side that always leaks at the o-ring? Can't you be able to fashion a freeze plug in there and weld it flush and not worry about an oil leak? Seems kind dumb to put a plug with an o-ring that will deteriorate over time.
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The reason it's a removable plug with an o-ring is because it runs off your intermediate shaft (kind of like a cam, but it has no lobes) and it's used to turn your oil pump. I wouldn't recommend welding it shut unless you want to buy another engine if you ever want to do a rebuild.-60v6's 2nd Jon M.
91 Black Lumina Z34-5 speed
92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
94 Red Ford Ranger 2WD-5 speed
Originally posted by Jay LenoTires are cheap clutches...
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Originally posted by pocket-rocket View PostThe reason it's a removable plug with an o-ring is because it runs off your intermediate shaft (kind of like a cam, but it has no lobes) and it's used to turn your oil pump. I wouldn't recommend welding it shut unless you want to buy another engine if you ever want to do a rebuild.1991 Pontiac Grand Prix GTP / 3.4 DOHC
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Originally posted by Ghettoracer View PostYou know how they have that plug on the top side that always leaks at the o-ring? Can't you be able to fashion a freeze plug in there and weld it flush and not worry about an oil leak? Seems kind dumb to put a plug with an o-ring that will deteriorate over time.
Last edited by 60dgrzbelow0; 09-12-2009, 05:24 AM.
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And a brown one only runs $2-3 at the dealer.-60v6's 2nd Jon M.
91 Black Lumina Z34-5 speed
92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
94 Red Ford Ranger 2WD-5 speed
Originally posted by Jay LenoTires are cheap clutches...
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Well when I have a top end off I do it both ways... New brown o-ring and a gasket, but I use black silicone. I have yet to have one leak this way.-60v6's 2nd Jon M.
91 Black Lumina Z34-5 speed
92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
94 Red Ford Ranger 2WD-5 speed
Originally posted by Jay LenoTires are cheap clutches...
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Originally posted by pocket-rocket View PostWell when I have a top end off I do it both ways... New brown o-ring and a gasket, but I use black silicone. I have yet to have one leak this way.
The only problem I can see that might arise with using an additional sealing gasket under the lower lip surface area of the Oil pump Drive and the upper mating surface of the engine block is that if the gasket material is thick enough, it might change the relational depth of the mating areas between the helical drive gear on the OPD and the helical gear teeth on the camshaft moving them out of their optimum mating positions.
Also, this additional height of a raised OPD might allow the hex drive shaft mating inside the oil pump, which is ordinarily fairly snug once the OPD is pushed deep inside the block hole and the holding clamp is torqued down to specs, to have too much vertical play. Under the changing torque dynamics of increasing/decreasing RPM, this extra play can cause the mating gears to allow the OPD to walk up and down and perhaps cause the Hex Drive Shaft to chatter and vibrate up and down as well. Any additional mechanical vibrations in this 'stack' of components can only invite added wear and part failure of the gear teeth and invite damage to both the Oil Pump Drive and the Oil Pump as well.
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guess you better tighten that shit down real good.
the explanation does present a valid point... i guess we will have to see. the only noise my engine makes is when i first start it up i have some sticky lifters, but a minute later and the rattling goes away... oh and i can REALLY hear my injectors clicking too! lol if i have the cover off for them and start it it sounds pretty loud. but other than that, so far no noise or oil leaks.
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I will be sure to pull the one out of my 91 when I part it out to have a look since it's been that way for years (gasket sandwiched between silicone) and reved up to over 7k many many many times that way. I doubt anything came of it though since a gasket isn't very thick and silicone spreads even thinner in this case.-60v6's 2nd Jon M.
91 Black Lumina Z34-5 speed
92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
94 Red Ford Ranger 2WD-5 speed
Originally posted by Jay LenoTires are cheap clutches...
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