Fixing your timing cover

jeepsr4ever

Here are the oil filter adaptors, this is right before tri-cloro cleaning, We use a sonic tri-cloromethane cleaning that also incorporates heat, This gets the oil out of the porous casting and is the key to good cohesion of the nickle, some of those are newer crown automotive adaptors and some are stock

jeepsr4ever

here is the tank that cleans them, tricloromethane and sonic wavelengths scour the porous casting and removes emmbedded grease! The tri-cloro boils and rises and then hits the super cooled water which condensates th tri-cloro and settles it, you cant even smell it from where the pic was taken!! Very cool

jeepsr4ever

Here are some covers which have been cleaned and bead blasted to give the nickle the best possible surface condition, notice the one in the middle, it still has the harmonic balance seal, that is my personal one, i got big plans for it so i left the seal in, normally i dont

Here are the adaptors, notice the different casting #'s!!! this is after cleaning and blasting

jeepsr4ever

here they are back from plating, it took several hours and is not a cheap process, this is a build up of .002 Ni. Next they will be fitted with custom fit oil gears, like the ones we sell with the hand lapping and broken edges. This is one of the final stages of building the Ultimate oiling system for your AMC V8

jeepsr4ever

here i am with an end fit into the pump cavity, The gears had to be taken down .003 and the fit is less than .001 which is far greater than stock and the great thing is that it will hold that tight dimension for years, if the proper and clean oil is used

jeepsr4ever

I also suggest using a .0085" thick gasket for the end, these can be bought with a kit from me or federal mogul under the name sealed power. Why use this gasket? When you increase the distance between the end of the gears and the oil filter adaptor pressure loss will occur, these set-ups leave the shop in better than factory specs and hold spec longer than just a new or rebuilt oil pump, anyeays here is a pic of the gasket, about gears
http://www.bulltear.com/forum/viewtopic.php?t=472

jeepsr4ever

here i am checking the bore to gear clearance,when doing a mod like this the bore must be checked and measured 3 times, here you will see teh numbers........these came in around .001 to .002 (exellent!)

jeepsr4ever

Here is the gear end clearance, the proper way to measure this is to take a feeler guage and strait egde. Depending on the gasket between .004-.006

Holeshot

Hello So, are you selling a select-fit, hand fitted oil pump/timing cover/oil filter housing set yet? Thanks PS: Where is your shop at?

jeepsr4ever

Yes we do we sell a nickle coated cover with the lapped gears high and low pressure spring and .0085 gasket and new plunger for $320. We also will blueprint the oil pump for $20

Holeshot

Here's a thought: Wet pressure testing of each set?? A dynoed oil pump, as it were...Dave

jeepsr4ever

Man Dave you would be suprised how much volume is lost per .001 oversize of the cavity walls. We used to build gear pumps that held a .0002" all day long at 350 degrees :!:

JMSII

MC, What do you charge to "rebuild" a customer's used timing cover/adaptor? Clean, nickle plate, hand fit gears, stainless plate, etc? Thanks!

jeepsr4ever

I used to do it for $320 but I dont make any dough on it and its eats up my time. I can offer a New nickel coated cover with gears for $345 (used to be $320 before the price of materials went up)

JMSII

Does that include the adaptor as well?

jeepsr4ever

Sadly it doesnt

Honcho

jeepsr4ever wrote
Here are some covers which have been cleaned and bead blasted to give the nickle the best possible surface condition, notice the one in the middle, it still has the harmonic balance seal, that is my personal one, i got big plans for it so i left the seal in, normally i dont

I finally got the oil pump primer tool, thanx, yep thats who I am.
When glass bead blasting the covers, are you lightly hitting the mateing
surface where the oil pump adaptor and the timing cover touch?
Is there anyplace on the covers or the oil pump adaptors that should not be glass bead blasted?

jeepsr4ever

Avoid the mating surface there...that can be cleaned with scotchbrite

shawn

MC, those tolerances you have shown on this pump, is that applicable to a stock setup? I may end up getting a new pump from you, I am currently taking my pump appart to find out why I only have 30psi a 2500 rpm. But I don't know what tolerances are good and what tolerances are bad. I see you also have plated adapter plates. You recomend a midplate with those adapter plates? Does a mid plate keep me from buying a whole new adapter if mine is wore? Are those gears aluminum?

Mudrat

Bump Shawn, MC was at the FSJ Invasion when you wrote this so he may not have seen it - so I'm bumping your question for ya. :wink: I have the whole setup (nickle cover, pump, gears) but haven't seen it since I left it at the machine shop (AMC 360, 30 over, cross drilled crank, oil modded, balanced, etc...) but the gears are steel (and my motor is due back this week :lo1l: ). Aluminium changes dimentions too much under heat load and I have a feeling they would eat themseves in no time. :idea: Pat