I have rebuilt my 1981 22r, It started right up, but once it builds oil pressure, I can here a popping noise. The oil filter seal pops out. It does not matter how tight i wrench on the filter. there is only one seal. I have tried different brand of filters, napa and wixs. I removed the filter and used compressed air to see if any passage might be plugged up. I dont want to tear it down, but somethiong must be plug up somewhere any ideas ?

 

oil pump pressure valve ...



did you replace your oil pump when you rebuilt it ?


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