Compression Test
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Senior User
Joined: Dec 2007
Posts: 383
Likes: 0
From: PLANT CITY, FL
Compression Test
Anyone know what a compression test should show on a 97 f250 with the 7.3 I have found one with 300 k miles but he said it has good compression test and Im not that worrie bc its only $6000 dollars and the truck is in good condition any thoughts
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Yep what Joe said. Got my gauge set yesterday and will be testing my parts truck motor before I rip it out tomorrow. Then gonna test my truck when I get a chance. Hoping both will be what Joe said but I don't think my truck will look real good.
Postmaster
Joined: Jun 2007
Posts: 2,795
Likes: 1
From: Rogue River, OR
Go to E-Bay and type in: Diesel Compression Tester
You will be swimming in them and reasonable as all hell.
Rog
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
This is the set I bought
eBay Motors: MityVac Digital Diesel Engine Compression Tester Kit (item 360012504476 end time May-08-08 13:42:52 PDT)
The reason I went with this set and not one of the others is that it specifically states it works on the PSD and its brand name. The others are no name and just say they are for 6.9/7.3's so I don't know for sure they have the right adapter for the PSD.
eBay Motors: MityVac Digital Diesel Engine Compression Tester Kit (item 360012504476 end time May-08-08 13:42:52 PDT)
The reason I went with this set and not one of the others is that it specifically states it works on the PSD and its brand name. The others are no name and just say they are for 6.9/7.3's so I don't know for sure they have the right adapter for the PSD.
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Elder User
Joined: Oct 2004
Posts: 782
Likes: 1
From: Olympia, WA
Any compression test tool for diesels is probabaly ok, long as the guage goes up to 4-500psi. PSD's need a glow plug adapter. I couldn't find one locally and was in a hurry when I needed it, so I looked at pictures online and then made my own. I bought a brand new grease gun hose for $5-6. Then I cut the tip off and pulled the core out of an old glow plug. I welded the new hose onto the glow plug body and ran my test, piece of cake.
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
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From: Celaya, Gto. MX
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
This kit is what I got:
http://www.harborfreightusa.com/usa/...ic%20Equipment
http://www.harborfreightusa.com/usa/...ic%20Equipment
I use my set yesterday. It worked well but the short (compared to the GP) stub below the threads made it tricky to get starting in the threads.
sorry TJ, but IIRC some one in this forum recomended the kit (Cuda?)
Elder User
Joined: Oct 2004
Posts: 782
Likes: 1
From: Olympia, WA
Tim, the PSD glow plug adapter has a flexible hose permanently attached to it, the 90 degree fitting you are worried about connects to the end of the flex hose way above the heads so it's not in the way.