electric vacuum pump? - PeachParts Mercedes-Benz Forum

LUVMBDiesels · #1 08-27-2009, 02:36 PM

Has anybody replaced their engine driven vacuum pump with one if these?

It is for a Ford Diesel.
http://www.am-autoparts.com/AM/Engine-Electrical/Ford/F-450/-/AM-41135027/?utm_source=google_base&utm_medium=cpc&utm_campaign=new_google_base_feed

I am wondering if you could remove the engine driven pump, remove the innards and just bolt it back up to plug the hole in the head while running the vacuum accessories off the electric pump.

Thanks!

compress ignite · #2 08-27-2009, 03:04 PM

BUT, that Ford pump sure has an attractive Pricing Structure.
(AND You've already guessed it...No Potential for Engine Damage Surprises!)

Only question I've got is about the "Lack of" compression stress on the "Roller
Disc" which is attached by that one counter wise bolt to the Timer...Does the
Timer or the IP behind it require the VP's compression?

GSXR ???????????

LUVMBDiesels · #3 08-27-2009, 03:25 PM

Quote:

Originally Posted by compress ignite

BUT, that Ford pump sure has an attractive Pricing Structure.
(AND You've already guessed it...No Potential for Engine Damage Surprises!)

Only question I've got is about the "Lack of" compression stress on the "Roller
Disc" which is attached by that one counter wise bolt to the Timer...Does the
Timer or the IP behind it require the VP's compression?

GSXR ???????????

Good point...

On a W126-esp the 300SDL, what do we need vacuum for besides the power brakes and to control the harshness of the transmission shifting? (Assuming it is in emissions "testing" mode)

How much vacuum do we need to produce?

cscmc1 · #4 08-27-2009, 03:40 PM

Subscribing... I want to keep an eye on this conversation!!!

Diesel911 · #5 08-27-2009, 05:56 PM

I bought a Thomas 12-volt vacuum pump with the intent of trying to do without the stock vacuum Pump (in pic) for about $124 when there was a lot of them on eBay. Now it seems the price has gone way up.

Since then it has sat on the shelf forgotton until your thread.

One of the member speculated that an Electric Vacuum pump would not hold up due to the fact that the transmission modulator always has a small leak going on.

Also some GM cars that were turboed are supposed to have a Vacuum Pump that is made to run the Brake Booster.

Electric V pumps are noisy.
And, I believe I would need a higher output of Alternator.

Also missing here is you need a pressure switch to turn it on and of automatically; another $27 expense.

Diesel911 · #6 08-27-2009, 06:05 PM

Quote:

Originally Posted by LUVMBDiesels

Has anybody replaced their engine driven vacuum pump with one if these?

It is for a Ford Diesel.
http://www.am-autoparts.com/AM/Engine-Electrical/Ford/F-450/-/AM-41135027/?utm_source=google_base&utm_medium=cpc&utm_campaign=new_google_base_feed

I am wondering if you could remove the engine driven pump, remove the innards and just bolt it back up to plug the hole in the head while running the vacuum accessories off the electric pump.

Thanks!

You might want to do some more reasearch on the above V Pump.
I believe the Ford Diesels it goes on have Mechanical Vacuum Pumps for the Brake Booster and the above V Pump is for running the accessories.

I remeber seeing the above pump in eBay and the seller saying it was not for the Power Brake Booster.

A good source of Vacuum Pump info for Vehicles is on EVs (electric vehicles). At least 2 sites had a list of vehicles that had Electric V Pumps just for the Power Brake Booster use. They had a lost of 80s GM turboed cars that used them (I looked in the J yard and saw not even one of them).
Racing and Hot rod parts sellers like Comp Cams or Ebay.

LOL eBay has everthing. The above V Pump is selling on eBay for $80 + $8 shipping. Do a search= Ford Vacuum Pump.

Diesel911 · #7 08-27-2009, 06:23 PM

Here is the real deal one made for the job + all the goodies to make it work. Bidding starts at $199 on eBay.

Not arrow point at the pressure switch and also that there is a relay.

Matt L · #8 08-27-2009, 09:11 PM

Quote:

Originally Posted by compress ignite

Only question I've got is about the "Lack of" compression stress on the "Roller
Disc" which is attached by that one counter wise bolt to the Timer...Does the
Timer or the IP behind it require the VP's compression?

It can't put a constant pressure on the cam, and will push the cam forward half the time, and backward the other half. I don't see how it could be designed to help the timing device, but I do not know the answer to your question.

Jeremy5848 · #9 08-27-2009, 09:34 PM

Quote:

Originally Posted by Diesel911

Here is the real deal one made for the job + all the goodies to make it work. Bidding starts at $199 on eBay.

Not arrow point at the pressure switch and also that there is a relay.

I'll bet it's noisy, like one of those cheap 12 volt tire pumps.

SD Blue · #10 08-27-2009, 11:15 PM

Quote:

Originally Posted by Jeremy5848

I'll bet it's noisy, like one of those cheap 12 volt tire pumps.

YIKES! I would be afraid of drowning out the gentle purr of the engine!

Diesel911 · #11 08-27-2009, 11:33 PM

Quote:

Originally Posted by Jeremy5848

I'll bet it's noisy, like one of those cheap 12 volt tire pumps.

I don't think Racers and Hot Rodders worry too much about a Vacuum Pump Making noise.
In the old days the Cars on the street with Race Camshafts in them sounded like a washing machine when they idle anyway.

LUVMBDiesels · #12 08-31-2009, 06:35 AM

I am now thinking of going with the updated pump and leaving well enough alone...

It seemed like a good idea for a few minutes, but to have to run a heavy duty electric pump would probably be too much trouble and noise.

After all my original pump is still working after 317K. I just want to remove it when I change the leaking gasket. I am curious as to the condition of the pump once I take it out.