Replaced starter in the 80 300d sedan last night with a JY starter. Immediately noticed that it seemed to turn slower than the previous one. but the car started right up. Today, the more I drove and stopped and started the harder it was to start (longer cranking and having to give it fuel). Eventually I thought I was going to run the battery down. Took 15 seconds + of cranking + foot to the floor to get her going. Let it set for a couple hours and it started back up quickly.

Fuel filters are new. fuel lines up front are new. switched to b100 a tank ago.

old style primer pump.

im going to check fuel lines at the tank and replace primer pump with new. probably change the fuel filters again too. the opaque filter looks like it may be gunked up from the tank and lines getting a b100 cleansing.

I really dont want to replace the starter again.

Opinions ?

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1996 E300 110,000
1985 300TD 212,000
1980 300D 238,000