[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
On 7 Aug 98, at 9:43, Douglas_Brashear@mail.amsinc.com wrote: > - the old pump has larger holes then the new one The important thing is that the holes in your pump match, and line up with, the holes in your case. It is possible that you do not have the original case in your 69, so you may not want a "69" pump. > - the gears are the same size in both the old and new pumps So at least the pump in your car is not the original. This is no surprise, but you should not assume that it is correct. > - if you look at the pumps from the side, the round portion that sticks > into the case is not as long on the new pump > - because the new pump doesn't protrude into the case as much, the > engine-driven pump gear (with the slotted end) doesn't engage fully inside > the engine You need to make sure that the nose of the pump body will not rub or interfere with the face of the cam. If everything else about the pump is okay, then you can press the shaft out of the driven gear slightly so that it engages with the cam enough. It is only a press fit. You do NOT want TOO MUCH engagement, that could lead to excessive end force against the pump cover. Measure everything carefully. > - the old pump shows very little wear (the tops of the gears are on the > same plane as the top of the pump) > - the old cover plate also shows very little wear Sounds like that pump is pretty new. > - the only difference inside between the pumps is the new one seems to have > more room for oil on the open sides (to the sides of where the gears meet) > despite having smaller intake/exit holes than the old one. Again, IT IS VERY IMPORTANT that the pump match the case!!! > My biggest concern is that with the new pump in the engine the slotted end > of the engine-driven oil pump gear doesn't fit all the way into the > indentation (in the cam?) whereas the old one does. I was considering > using the old pump housing with the new gears (they're exactly the same > size as the old ones). Does that sound feasable? Since only the body ever really wears, there is really no reason to do this. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/