My '74 240d has always, always run perfectly. Never spit, stuttered, smoked, bogged down; cold didn't bother it. A year or so ago I replaced the hand fuel pump with the new Bosch model. Also replaced the glow plugs. Since that time the car has been hard to start, or it would start, run for 10 minutes til slightly warm, then choke out. Then I would have to bleed it and that would seem to help, but it would still be hard to start.

I've noticed there is air in the line from the hand pump to the large filter. Bleeding doesn't remove it.

Could it be the new hand pump that's causing this? Any other ideas would be appreciated.

Thanks,
Brian

Did you put a new copper washer in? It might not seated all the way, or I suppose the the primer could possibly be bad.

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'85 300D ~ 381k, HD Bilstien shocks, 27.50x8.50x14R General Grabber AT2 tires, 4 E-Code headlight upgrade with 90/130w bulbs, boost turned up, new timing chain, and injectors. SOLD

'85 CJ7 ~ OM617 swap, Tarus electric fan, T5 trans, Dana 300, 4.88 R&P, Mile Marker locking hubs, ALDA removed, AMC 20 rear disk brake conversion, Aussie locked with 33's and 5" Rough Country lift.

Hi,

Yes, I did put a washer in. You're right, maybe it's not seated correctly. I'll start with that.

Thanks.