well here;s a good one for you; all of a sudden, out of the blue my heritage started having oil pressure issues. it was running fine, just like always the last 76k miles then one day last week i stopped for gas and when i started back up again the oil pressure was only 10 psi. i drove it about five miles and still no improvement. i stopped and checked to see if oil was returning to the tank and it was but it was also foamy. i let it cool down about 50 degrees and when i started it up it went to 40 psi and stayed there for the next 150 miles. yesterday it did the same thing.
today i drained and cycled out the hd 20/50 dino oil and changed filter. this time i put in redline syn 20/50. took for a test run on fwy. started out at 20 psi then moved up to 40 and stayed there. no foaming either.
has anyone had a similar case?
email me at harleysrule69@yahoo.com
thanks

 

What year is your bike? Any mods?

Drew

 

possible sticking oil pressure relief valve? hard to say now that its working

 

from my experience with any fluid that is foaming means that is low and causing what is known as areation of the fluid..

did you check the level ? if it was ok, theres probably a seal leaking on the suction side of the pump.

 

+1..............

 

dr v-twin;

it's an 05 heritage; original motor was an 88b; rebuilt under extended warrantee 2k ago by independant shop; harley sent wrong parts so now it's a 96b.
think i'll pull the cam cover and check for foriegn objects; if i don't find any then i'll just run it until it dies then buy a goldwing.

 

We'll pretend that you didn't say that or even think it. . .

 

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I didn't know an Indy could do warranty covered work on a Harley..

What parts did they install to make an 88 in'er into a 96'er?