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EFV-8 Club Forum / General Ford Discussion / Splat

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Discussion Topic: Splat -- page: 1 2

len47merc

09-23-2016 @ 8:51 AM

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Did not take it that way at all Tom and appreciate your coming back. I agreed with you as well and note I also stated in my write-up that he should ensure the car was not running rich first, so I'm glad he found his root cause. Just wanted to make sure the point was reinforced and not overlooked because the root cause was determined. Your points were on the mark.

Thanks -

Steve

TomO

09-23-2016 @ 7:01 AM

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Steve, I did not mean to suggest that driving the car for at least 30 minutes, each time you take it out, is not necessary, I just felt that the carbon splats are more related to a rich mixture. I agree that you should drive the car for at least 30 minutes each time, mainly to reduce the condensation in the engine that causes sludge.

Tom

ken ct.

09-21-2016 @ 1:38 PM

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Jay sending a parts sheet on carb breakdown w/ parts ID. snail mail. ken ct.

len47merc

09-21-2016 @ 5:27 AM

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Don't be discouraged if down the road on a cooler, more humid day, when you are more heavily condensing water and emitting vapor from the exhaust, that you see some additional 'marking' out of the pipe. Likely still have some deposits in there that may take a more than a few runs to completely clear out.

Glad to hear you've found your problem. Still stand, as a good general practice and good advice, on driving the car no less than 30 minutes each outing to completely dry-out your exhaust system. On those days when you are emitting heavier vapor out the pipe you may still have at minimum drips on the garage floor if you do not move the car out immediately ('sprays' if you rev the engine). TomO's suggestion of drilling an 1/8" hole at the bottom front center and bottom rear center of your muffler - if they are not already there - is very sound advice as well.

Steve

This message was edited by len47merc on 9-21-16 @ 6:02 AM

JayChicago

09-21-2016 @ 5:04 AM

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Follow-up:
Installed the new carburetor, engine is running great. No more blowing carbon out the tail pipe on startup. Drove to our regional group's meeting last night, ran great, no more missing. I'm happy. I really appreciate all the help I received here.

Ken: I removed the two jets visible in the barrels above the venturies. I assume those are the main jets. No number on them. I examined with a magnifying glass, no number. Previous owner had this carb rebuilt ten years ago, maybe using some cheap kit?

ken ct.

09-19-2016 @ 2:06 PM

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Let us know what # jets are in the old carb when you change them. I would install new plugs 1 step hotter and gap to .025. ken ct.

JayChicago

09-19-2016 @ 12:33 PM

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No, Ken, the splat-out-the-exhaust symptom is with the original carb still on the car, not with the rebuilt carb you sent me. I will post a follow-up when I get your carb installed.

Thanks for the info everyone. The plugs are black with short running time on them, so I guess its obvious the engine is running too rich. This could also explain why the miss I was experiencing was more prominent under steady cruise and not so obvious under acceleration....the engine might like a rich mixture under acceleration but can't handle it under light-load cruise.

ken ct.

09-19-2016 @ 9:45 AM

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His carb has .049 MJ in it so its not on the rich side !!! ken ct.

TomO

09-19-2016 @ 8:44 AM

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The muffler(s) need to have a 1/8" drain hole at the bottom front and back.

Your 40 is probably running rich or your power valve is leaking. You should not see a black "splotch" when you start your engine.

Oil Eater degreaser does s good job of removing the black carbon stain.

Tom

joe b

09-19-2016 @ 6:09 AM

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I think they all do that when they have been sitting for awhile. It is just a Flathead acting like a dog to mark it's spot. Len47 has a good explanation.

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