[Bricklin] Oil Pressure Issue

Rick at High Tech Coatings rick at hightechcoatings.com
Sun Aug 30 03:15:11 MDT 2009


Greg the amc oil pumps suck!  a couple of thing s to check is for scores in
the housing and end play on the gears. I do not know off hand what the
clearances are but they are very important with the amc pump. If the housing
is scored you will need to replace the entire timing cover, AN OEM original
housing will be in the 400-500 range IF you can find one. You can get a crown
reproduction for less but the quality is sometimes spotty.
 also check the drive gear on the distributor since it drives the oil pump. if
the timing gear on the cam wasn't perfect and had the usual flash on it the
distributor drive gear will either not sit straight and wobble or not get the
right amount of oil on it and wear causing a loss of oil pressure. If you have
good oil pressure when cold, but low when warm it is usually a endplay or gear
clearance problem. if there are scores or wear on the end plate of the pump
(where the hoses attach) then it will need to resurfaced or a "wearplate"
installed. if you go to bulltear.com forums they have a pretty good amc forum
there and had a big section on oil pumps and cam gear issues.
http://bulltear.com/forums/viewforum.php?f=25&sid=3a4f9e2e8494268c5020b0f3994
cfc2d
Hopefully it is just a clearance issue you can cure with a new wearplate and
gasket,  If you cant do a quick fix for the pressure unfortunately you will
pulling the engine again to check your bearing clearance as the bearings may
have already been damaged. sorry to be the bearer of bad news.
 Rick
On 8/29/2009 7:36:07 PM, Greg Schroeder (gschroeder at comcast.net) wrote:
> I had an issue with the oil pressure gauge when I was getting ready to
> leave
> for a local car show or at least I thought that was the problem.  Since
> the
> oil pressure was fine when I had backed out of the garage earlier today
> I
> thought it may be the sensor.   Checked the oil and it was fine.  I had to
> go
> and get some gas before heading down the road.  The car drove fine with
> no
> apparent issues.  I stopped the engine to pump gas and it was very hard
> to
> start and the exhaust did not sound correct.  So instead of heading to
> the
> show I decided to head home.  After about a block the oil pressure gauge
> started working again and the engine sounded normal.  After getting back
> to
> the house I am hearing the valves click when the engine is running.
>
> Any idea of why the oil pump would quit working?
>
> If damaged was caused what should I look for?
>
> Greg 0036
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