rebuilding / servicing stock mechanical fuel pump

destin · 07-03-09, 01:31 PM

hi all

any pointers or documentation on rebuilding / servicing stock mechanical fuel pump? ( 1964 fj40 )

PO installed an electric pump...
He gave me the original pump and said it was fine, but i thought i should service or clean it before reinstalling it.

Any pointers would be appreciated

I can take photos if needed or helpful.

I did buy a new toyota mechanical fuel pump, but for whatever reason the arm from the pump is larger than the original, and if installed would easily clunk into the engine block.

Thanks

Destin

a.greenspan · 07-03-09, 02:04 PM

Sir

a german documentation ( video)
not a Cruiser fuel pump, but these pumps are all similar
hope / think this video is helpful for you.
Oldtimer-TV.com - Tipps und Tricks
Cheers
Peter

a.greenspan · 07-03-09, 02:41 PM

Cruiser manual fuel pump

destin · 07-03-09, 02:59 PM

thank you!

precisely what I needed

destin · 07-03-09, 03:38 PM

Just realized this may all be for naught since i do not have a seal /diaphram kit for a rebuild...
Unless the seals from the new one fit...

I should prolly call american toyota and see if they still make them...
Any one have a part number for a rebuild kit?

My fuel pump might actually be f25 pump, a lot of the parts on the motor are marked f25, like the manifold etc...

wesintl · 07-03-09, 05:04 PM

I don't think the rebuild kits are available. I bought a later pump and it fit fine. I used one of the old fuel line fittings. I think I got it at toyota, i'd have to look. I didn't have to change the block spacer but I measured the length of the arm to make sure it was the same as the old one.

destin · 07-03-09, 05:16 PM

Quote:

Originally Posted by wesintl

I don't think the rebuild kits are available. I bought a later pump and it fit fine. I used one of the old fuel line fittings. I think I got it at toyota, i'd have to look. I didn't have to change the block spacer but I measured the length of the arm to make sure it was the same as the old one.

Thanks man

SO a block spacer might be needed to use the new pump>?
Or is it just the incorrect pump?
The arms are definitely different sizes.

ocdbeetle · 07-03-09, 08:22 PM

Quote:

Originally Posted by wesintl

I don't think the rebuild kits are available. I bought a later pump and it fit fine. I used one of the old fuel line fittings. I think I got it at toyota, i'd have to look. I didn't have to change the block spacer but I measured the length of the arm to make sure it was the same as the old one.

On a different note - since you mentioned the fitting - (sorry destin)

Thought I read somewhere about the old fittings being hard to find or mate to??? Saving the old fitting with inches of original line
attached seemed to be the thing to do so you could mate the original line to something instead of the fitting to new line.....?.....

wesintl · 07-03-09, 09:45 PM

IIRC. I just bought a kyosan pump and a gasket. Napa, autozone and toyota should have them. I think the early ones don't use a spacer they just need a gasket. I can look at mine tomorrow.

ALL-FOREIGN CAR PARTS - Import & Domestic Car Parts, Import & Domestic Truck Parts, Brakes, Rotors, Distrubutors

http://forum.ih8mud.com/4563752-post4.html spacer info

Is yours a rebuildable pump or the non rebuildable?

destin · 07-03-09, 09:51 PM

I bought a Kyosan pump , but it lever that extends into the block is too long.

I should snap a shot of the old one and the new one to show you the difference.

Also, the old pump might work, The previous owner included it in the box of original parts he replaced.
Do the old pumps go bad if they have been sitting?

wesintl · 07-03-09, 09:57 PM

diaphram dries out and cracks.You could try it and see if it works. easy to change. is it like the top one or bottom?
Fuel Pumps

destin · 07-03-09, 10:10 PM

the original pump looks like this:

( believe it or not the different shape and arm shape between the original and the new one makes a difference.

The new one clunks into the case on revolution.

How am i going to replace the diapram and seals if there are no replacement kits?
Or are other other manufacturers kits generic enough to rebuild the original>?

Thanks man

a.greenspan · 07-04-09, 07:14 AM

Quote:

Originally Posted by destin

How am i going to replace the diapram and seals if there are no replacement kits?
Thanks man

it`s shown in the video scan the old ones & cut your own Sir.

What do you think guys with real vintage cars do ...
...they cut

forgotten

Quote:

Originally Posted by destin

Also, the old pump might work, The previous owner included it in the box of original parts he replaced.

Would try the pump first, may be she works fine, if not cut, cut, cut and replace the seals and the diaphram.

Cheers
Peter

wesintl · 07-04-09, 08:12 AM

just doing rough calc on the computer those arms look the same as far as depth. I only used a gasket on mine. The old one is different and I'm not familiar with it. Maybe someone else here is.

a.greenspan · 07-04-09, 08:34 AM

just found this :
"Service Tip
1958-1974 MODELS-When ordering fuel pump you must also order qty 2 item #028-05A bolts. These bolts are required for the updated Toyota design."
Specter Off-Road Land Cruiser Parts - Page 028 Fuel Pumps, Fuel Lines & Fuel Filters

Cheers
Peter

destin · 07-04-09, 11:11 AM

Quote:

Originally Posted by a.greenspan

Sir

a german documentation ( video)
not a Cruiser fuel pump, but these pumps are all similar
hope / think this video is helpful for you.
Oldtimer-TV.com - Tipps und Tricks
Cheers
Peter

sweet

seems pretty straight forward visually

Where can I get one of those sweet hole punches for gaskets etc?
Looks like i am gonna clean and dismantle this sunday...
Might wait if i cannot find a shop open with gasket materials.

Very cool source, and thanks for the video.

Are there any major warnings that are communicated verbally in german that would not be readily apparent visually?

destin · 07-04-09, 11:22 AM

Quote:

Originally Posted by a.greenspan

just found this :
"Service Tip
1958-1974 MODELS-When ordering fuel pump you must also order qty 2 item #028-05A bolts. These bolts are required for the updated Toyota design."
Specter Off-Road Land Cruiser Parts - Page 028 Fuel Pumps, Fuel Lines & Fuel Filters

Cheers
Peter

yeah, they are required because the lip housing for the bolt is thicker i believe

Here is a photo that illustrates the differences between the pumps more accurately:

destin · 07-04-09, 11:26 AM

Quote:

Originally Posted by wesintl

just doing rough calc on the computer those arms look the same as far as depth. I only used a gasket on mine. The old one is different and I'm not familiar with it. Maybe someone else here is.

Check out my image, that is the bit that is different, and causes the arm to tap the block on engine revolution. I was describing it poorly previously sorry

a.greenspan · 07-04-09, 12:38 PM

Quote:

Originally Posted by destin

sweet

seems pretty straight forward visually

a)Where can I get one of those sweet hole punches for gaskets etc?

b)Are there any major warnings that are communicated verbally in german that would not be readily apparent visually?

a) for example :http://www.allstategasket.com/info_g...ls-punch01.asp (think they have diaphram materials too )

b) no major warnings ... ( your diaphram materials must be for fuel pumps !! )
c) I googled a a bit

and found this ...

" How to make your own gaskets"
How To: Make your own gaskets. - Ford Explorer Ranger Enthusiasts Serious Explorations
Cheers
Peter

wesintl · 07-04-09, 01:54 PM

I dunno, I have the same block and same pump, works fine. I don't think thats an oem pump and the dimensions are some what arbitrary in the pic. THe main thing you should be worried about is the depth of the arm but for that pump on f and earlier 2f (up to 79) you don't need a spacer. Have you actually run the pump on the motor?

destin · 07-05-09, 12:54 PM

Quote:

Originally Posted by wesintl

I dunno, I have the same block and same pump, works fine. I don't think thats an oem pump and the dimensions are some what arbitrary in the pic. THe main thing you should be worried about is the depth of the arm but for that pump on f and earlier 2f (up to 79) you don't need a spacer. Have you actually run the pump on the motor?

hiya

I did not try to install it myself ( after my failed attempt to rebuild and tune the carb properly, I brought it to a mechanic that specialize in landcruisers ).
The mechanic/owner said the pump arm did not clear the case properly ( too wide at the base, you can see the difference if you look at the alignment of the bolt pattern )
Maybe the pump I have ( stock ) is from an fj25?
Alot of the other parts are marked that way...

I will ask the mechanic again this week to verify, but I do not see why he would misinform me, but you never know

a.greenspan · 07-05-09, 04:01 PM

Quote:

Originally Posted by destin

The mechanic/owner said the pump arm did not clear the case properly ( too wide at the base, you can see the difference if you look at the alignment of the bolt pattern )
Maybe the pump I have ( stock ) is from an fj25?
Alot of the other parts are marked that way...

Hi Destin,
must be possible to change the pump arms if that`s the problem,
I think

...
..but would try both pumps first if they fit.

Fuel pump Specter sells are 1958-12/78...means no difference between 25`s and 40`s.
http://www.sor.com/sor/cat028.tam?xa...ctx=cat028.tam

Cheers
Peter

destin · 07-05-09, 04:30 PM

Quote:

Originally Posted by a.greenspan

Hi Destin,
must be possible to change the pump arms if that`s the problem,
I think

...
..but would try both pumps first if they fit.

Fuel pump Specter sells are 1958-12/78...means no difference between 25`s and 40`s.
Specter Off-Road Land Cruiser Parts - Page 028 Fuel Pumps, Fuel Lines & Fuel Filters

Cheers
Peter

Right on

Maybe the mechanic was making a assumption based on sight alone hehe.
I will chat with him next week and find out what's what

Does your old pump look like mine?

Thanks man

Destin

a.greenspan · 07-06-09, 02:20 AM

Quote:

Originally Posted by destin

Does your old pump look like mine?
Thanks man
Destin

pic of my old pump

it`s this one / pic Specter ( bought a new this year as a spare part / Toyota have them )

Cheers
Peter

Cruiser_Nerd · 07-06-09, 07:07 AM

To echo what the others have said:

The new replacement pump you have pictured will fit, it needs the longer bolts. Depending on where the cam lobe is when being installed it may "feel" like it doesn't fit.

The old pump is not a Kyosan, and it doesn't look like a Nikki (maybe a real 25 expert who has one can compare). I'd bet it's a Chevy fuel pump for a 216/235, see if there are any markings on it.

Rebuild kits are no longer available from Toyota for the stock fuel pump.

destin · 07-06-09, 11:17 AM

Quote:

Originally Posted by Cruiser_Nerd

To echo what the others have said:

The new replacement pump you have pictured will fit, it needs the longer bolts. Depending on where the cam lobe is when being installed it may "feel" like it doesn't fit.

The old pump is not a Kyosan, and it doesn't look like a Nikki (maybe a real 25 expert who has one can compare). I'd bet it's a Chevy fuel pump for a 216/235, see if there are any markings on it.

Rebuild kits are no longer available from Toyota for the stock fuel pump.

Looks like the chevy one for sure

Cool thanks guys, i will chit chat with the mechanic and asses what's what.
Maybe it was the cam lobe position when installed that threw him off, but you would think he would know better

I have the new bolts for the new pump, so no worries there

Thanks again guys, you have been a great help!