I change the engine oil on a regular basis around 3k miles. After a month or so the oil smells like gas and is liquidie, it still feels like oil but why does it smell like gas? Any one has any idea why that is happening?

 

1. If you have a mechanical fuel pump attached to your block, that would mean that the pump diaphragm is torn or leaking or the seal is weak. Check out your fuel pump.
(Old history moment example: Volkswagon fuel pump leaking into oil sump, can cause fire)

2. Carburetor vacuum port a second possibility.

3. Last guess, if carburetor, Float level to high, leaking fuel when engine is at rest..

 

Could it be that its running rich and theres fuel getting past the piston rings and into the oil? My oil is the same way, smells like gas but still feels like oil

 

From his recent postings he has installed an electrical pump. Did you note its operating pressure range on the pump. Possibly the pressure is to high and like said leaking fuel into the motor.

 

The pump is oem. I don't think its the pressure. The carburetor was re-built a few years ago, it might be running rich. These carbs are hard to get them running right. I will look at the spark plugs and see what I get.

Thanks for the info this might be a good part to start looking. Are there diagrams on line about these carbs?

 

http://www.retrojdm.com/ScanViewPDF.asp?ScanID=104

http://www.retrojdm.com/Scans/Toyota/Misc/Service Manuals/20R Engine/PDF/04 - Fuel System.pdf


That is a part of this manual

 

Wow amazing thank you so much.