Fuel Pump
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48271
Printed Date: November-27-2024 at 7:32am
Topic: Fuel Pump
Posted By: Fiberglassic
Subject: Fuel Pump
Date Posted: December-13-2019 at 11:15am
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Hey you experts out there! Could someone help me locate a new fuel pump like mine attached? Its out of a 1980's?? LM318 engine, CC is a 1965 Cuda. Pump shows Carter as mfg., maybe M6866, but cant find one with the vent pipe above diaphragm. Thanks...Scott   
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Replies:
Posted By: 8122pbrainard
Date Posted: December-13-2019 at 11:29am
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Scott, http://www.then-now-auto.com/" rel="nofollow - Have you tried Then and Now? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 67 ski nat
Date Posted: December-13-2019 at 11:39am
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Hi. I have a 67 Chrysler LM318. I’m using a Sierra 18-7264 (2279913). Try ‘marine parts express’ there is a schematic with parts number. Check your year and verify. Always use marine grade. I’m not sure the vent is marine. There is a CARTER rebiuldable that looks correct too (M2504) I will check year for you too, be right back |
Posted By: 67 ski nat
Date Posted: December-13-2019 at 11:44am
| For up to 85. I see 3745414 (Sierra 18-7254) part number for your 318. Appearantly minor differences |
Posted By: 67 ski nat
Date Posted: December-13-2019 at 11:47am
| Yes I see a vent on 3745414 (18-7254). |
Posted By: 67 ski nat
Date Posted: December-13-2019 at 12:00pm
| Of course you can but it wherever is easy and best price as Pete’s then and now. I just bought mine so trying to steer you to schematic and part number Check then and now too |
Posted By: Mille1sj
Date Posted: December-13-2019 at 2:08pm
| Then and Now is a great option. They recently rebuilt a pump for me. They make a lot of the internal parts in-house. |
Posted By: KENO
Date Posted: December-13-2019 at 2:11pm
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Since you're looking for a new pump, I think 67 ski nat has given you a good number with the 18-7254 pump that has the leak off line to the carburetor flame arrestor in case of a ruptured diaphragm. His 18-7264 works with his 67 model year engine because the leak off line hadn't come into existence yet Since you have the fitting, you must have the clear tubing line going up to the flame arrestor I'd imagine. Your old one may be rather hard to get apart,and back together but you could talk to Then and Now 
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Posted By: Fiberglassic
Date Posted: December-13-2019 at 5:04pm
| Yes, clear tube connects to a barb off the carburetor riser. Can I block that off and not worry about the leak off port on the fuel pump? Or is that a safe to have marine thing? The engine is not original to the boat. Previous owner had the engine professionally swapped out after his daughter somehow blew it up in the 80's. I have a pic of it in diaries, 1965 Barracuda in Raleigh, NC. |
Posted By: KENO
Date Posted: December-13-2019 at 6:25pm
Call it a marine safety feature And keep it
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Fiberglassic wrote:Posted By: 67 ski nat
Date Posted: December-13-2019 at 8:05pm
| Thanks keno. I was even confused why he has tube and I do not. I feel better now |
Posted By: Fiberglassic
Date Posted: January-06-2020 at 5:49pm
Found a pump on eBay that'll work. The in fitting is a 3/8 barb instead of threaded which is better because I converted to marine 3/8 hose last year. The out side is the very same except positioned just a little differently. This is the only one I could find, and let me tell you, I worked hard to find it. There are lots out there but only a few with the fuel bleed line I needed, all but the one I got had a 5/16 hose barb which was to small for my setup. It seems Chrysler used this in a few of their V8 motor cars in 1976 - 1978 only. This is why finding NOS is next to impossible.   ------------- Scott |
Posted By: 67 ski nat
Date Posted: January-06-2020 at 6:11pm
| Good job The search is half the fun. |
Posted By: KENO
Date Posted: January-06-2020 at 9:56pm
May be kinda silly of me to ask. but where's the tube for sending fuel from a ruptured diaphragm back to the carburetor? I don't see one in your pictures. Or is this gonna become a do it yourself marine fuel pump? 67 SkiNat gave you a part number (18-7254) for a Sierra with the appropriate line that's pretty easy to find for sale. Here's one in the link below https://www.summitracing.com/parts/rra-18-7254/overview/" rel="nofollow - link |
Posted By: Fiberglassic
Date Posted: January-07-2020 at 10:51am
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The tube had to be removed from the old pump which is done, and will be inserted into the hole of the new pump which I haven't done yet. The hole of the new pump functions the same way as the original pump causing a suction when the actuating lever is pushed. I didn't go for the Sierra 18-7254 because the actuating lever was not the same shape, the tube and the upper part of the pump was totally different from the original, and no one could tell me for sure that this pump would work on my engine. Thanks for all the inputs from everyone...Scott |
Posted By: KENO
Date Posted: January-07-2020 at 5:29pm
So' I guess it is the homegrown do it yourself marine pump. Now if you'd asked in this thread if the Sierra 18-7254 would fit and work right, you would have got an answer For the next guy with the same question the answer is Yes.
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Posted By: fanofccfan
Date Posted: January-08-2020 at 10:49am
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I had to make a home grown do it myself marine pump as well. I ordered what I thought was going to have to vent tube but no such luck as it arrived with one in the box but not attached to said pump. Next time i will get the one referenced above! ------------- 2004 196 LE Ski 1969 Marauder 19 1978 Ski |
Posted By: Fiberglassic
Date Posted: January-13-2020 at 5:01pm
Painted, installed, and ran my new home grown fuel pump for 5 minutes, all went excellent, and the engine immediately fired right up. I would go this NOS route again if possible for originality reasons and the cost was 2/3 less than the Sierra pump.  ------------- Scott |
Posted By: 8122pbrainard
Date Posted: January-13-2020 at 5:16pm
Scott, Glad it worked out for you. BTW, I wouldn't worry about originality on your new engine. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: KENO
Date Posted: January-13-2020 at 6:39pm
I agree with Pete Do you have a manual for that later (1980's) LM series engine with a good section on that Quadrajet carburetor? If the answer to the above is No, do you want one (electronically) ? |
Posted By: Fiberglassic
Date Posted: January-14-2020 at 9:44pm
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Keno - Wow, what a nice offer!! Yes please on sending me a electronic manual of the Quadrajet! I do have a very vague Manual of the entire engine, but nothing in detail. Let me know if you need anything further in email address that I'll PM you if needed. Thanks...Scott |
Posted By: KENO
Date Posted: January-15-2020 at 10:05am
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Scott The link below has the manual. 123 pages of info on the later 318/360. You'll notice some things missing such as fuel pump info, but good stuff on the carburetor and Chrysler electronic ignition and most everything else There's a wiring diagram on page 82 https://www.manualslib.com/manual/1007590/Chrysler-Lm-318.html?page=123#manual" rel="nofollow - link |
Posted By: 67 ski nat
Date Posted: January-16-2020 at 10:31am
| Hey your motor looks very nice. Have you been working on it |
Posted By: Fiberglassic
Date Posted: January-16-2020 at 5:52pm
| Yes, cosmetically only. Took the exhaust manifolds off last winter to inspect and repaint. When they were off, I paint touched up the engine wherever I could. |