Joined: Nov 05, 2009 Posts: 174 Location: Florianopolis, Brazil
Posted: Wed Sep 22, 2010 8:32 pm Post subject: M170 fuel system questions
Hi, I recently bought a fuel pump on Ebay for my M170.
Diaphragms replaced, all moving parts checked, seems to be everything OK. Now I am struggling to install it, since it is missing the spacer and also the long bolts, as foreseen for this installation. So questions:
(1) - Do you guys have the correct dimensions of these bolts and the lenght of the threaded end?
(2) - I also need a picture / dimensions of the fuel pump spacer ?
(3) - another fuel system question: my fuel tank had its fuel filter removed, so do you have any picture of it to help me finding a similar around in the market?
Thanks, best!
Claudio
Florianopolis, Brazil
You won't have much luck locating a filter that will fit in place of the original in tank filter. They are all a little different from each other due to different shape fuel tanks. Midwest has them in stock:
The long tube is M38A1 and the short tube is M38.
Joined: Nov 02, 2007 Posts: 437 Location: Seguin, Texas
Posted: Thu Sep 23, 2010 12:08 pm Post subject:
I think this a picture of the spacer.......
[url] P1010007 by idiocrates, on Flickr
[/url]
at least its what I bought for the fuel pump on my F-134 which had no spacer only an external fuel pressure regulator. _________________ Jim
Joined: Nov 05, 2009 Posts: 174 Location: Florianopolis, Brazil
Posted: Thu Sep 23, 2010 6:04 pm Post subject:
Thank you Wes, thanks Jim,
Even with the thicker 9/16" spacer, I'm still having problems to install the fuel pump, as its large diameter housing touches the engine front mounting plate.
My TM-9-8014 Manual, page 155, shows a picture of the fuel pump assembly and looks clear that the upper fuel housing of the pump is spaced way higher from the engine mounting plate. Mine touches the mounting plate. I can't find the reason why.
I have currently in hands a civilian pump that has a smaller housing diameter, doesn't need any spacer, neither long bolts, bla bla bla...but still not original...and I also doubt if these civvy pumps would give enough vaccum flow to ensure ventilation of the 24V coil. What about that?
Could later model Hurricane engines be equipped with a different and larger engine mounting plate? Please give me a help!!!
Joined: Nov 05, 2009 Posts: 174 Location: Florianopolis, Brazil
Posted: Thu Sep 23, 2010 10:20 pm Post subject:
Oh well...it is almost 1:00 AM in Brazil...seems that the first spring night will still be cold and rainy...not good news though...besides that, forecast indicates rainy weather over the weekend...buuuuut still very good "encouraging" news from you guys, thank you!!!
Since I am not going to replace the engine of the jeep exclusively to fit the correct fuel pump, neither look for an engine with other mounting pate, it remains only the alternative to proceed small changes on the engine mounting plate to allow installation of the fuel pump, the same way Jeff did on his jeep. I will make photos to have all this recorded and let others know about these issues.
After all these discussions about the ventilation/vaccum system of my of M170 (and othe M's from the same vintage), I am now seriously concerned to find out the original specifications and configuration of these Mseries vehicles' engines that have been supplied to Brazil during early 60's.
Thanks again, all best!
Claudio
Joined: Nov 05, 2009 Posts: 174 Location: Florianopolis, Brazil
Posted: Mon Sep 27, 2010 5:36 am Post subject:
Hi, the installation of the pump worked fine, the small port for fitting the lower fuel pump bowl was actually there, so I only had to remove about 2mm of the engine mount plate to allow a comfortable installation of the pump. My best thanks Wes!
Now it remains another question: the late style air filter (with flat head) outlet gives no allignment with the YS carburator, still considering that the crossover tube has to be installed. Can you give me a hint?
Regards
Claudio - Florianopolis, Brazil
[img][/img]
Joined: Nov 05, 2009 Posts: 174 Location: Florianopolis, Brazil
Posted: Mon Sep 27, 2010 9:32 am Post subject:
I see no big difference of the shape of the flat head of the air filters (MUTT x M170). Mine had its final end of the air outlet neck replaced by a larger diameter tube (welded), while the original seems to look thinner at the final end. The MUTT air filter has 2 breathers (one at the filter itself and the other one on the "mushroom"pre-filter). Mine has none of these. Still confused...
Thanks Wes!
Best!
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