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D7 3T Engine Rebuild

D7 3T Engine Rebuild

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Prospectorgav
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Hello forum, I have sourced a complete spare engine here in Australia for my D7 3T dozer which I use for prospecting. I intend to rebuild the engine and replace the existing engine due to wear. I have the parts catalogue for the dozer but am chasing a service manual with tightening torques and other engine details to assist with the rebuild. Is there a service manual available for the engine with this information or do I require the service manual for the complete machine. Any info much appreciated.
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Thu, Feb 23, 2017 4:52 AM
Willowhic
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Best place to get manuals is eBay, unless you happen to come across someone who's selling their stockpile.

I'm not sure about international sales, but here's a sample link from the 'States for your consideration.

Hope this helps!
Best of luck

http://m.ebay.com/sch/i.html?_nkw=caterpillar+d7+3t
1988 JCB 1400B backhoe
1966 Cat D9 cable dozer
1966 Cat 980 wheel loader
1967 Galion 140 grader
1963 Cat D7E hydraulic dozer 47A886
196? Cat 112 grader 3U3308 (engine: 3U243)
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Thu, Feb 23, 2017 9:15 PM
Andrew
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Reply to Willowhic:
Best place to get manuals is eBay, unless you happen to come across someone who's selling their stockpile.

I'm not sure about international sales, but here's a sample link from the 'States for your consideration.

Hope this helps!
Best of luck

http://m.ebay.com/sch/i.html?_nkw=caterpillar+d7+3t
most books etc from USA seem to cost about $25 AU for postage which adds considerably to the cost.
If you ask the seller to send them "Media Mail" The cost should be about $5. This is alot more affordable !
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Fri, Feb 24, 2017 5:51 AM
edb
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Reply to Andrew:
most books etc from USA seem to cost about $25 AU for postage which adds considerably to the cost.
If you ask the seller to send them "Media Mail" The cost should be about $5. This is alot more affordable !
Hi Team,
back in that time Torque specs. were not in the manuals.
They have been posted many times before and an Advanced Search would find them.
Scans re-posted below. Use D8800, 5 3/4" Bore x 8" Stroke Specs. for your D7 3T.
Download and save the scans for future reference and Print them for use in the shop.
Cheers,
Eddie B.
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Fri, Feb 24, 2017 7:08 AM
Mike Meyer
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Reply to edb:
Hi Team,
back in that time Torque specs. were not in the manuals.
They have been posted many times before and an Advanced Search would find them.
Scans re-posted below. Use D8800, 5 3/4" Bore x 8" Stroke Specs. for your D7 3T.
Download and save the scans for future reference and Print them for use in the shop.
Cheers,
Eddie B.
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I think this book should help, it covers both the D7 diesel and pilot engine, appears to have the torque specs for the heads, bigends and mains, it is a old copy from Hastings Deering I bought a few years back, Caterpillar Form 31238-1, 190 pages, it is only the D7 engines, not the tranny.
Mike
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Fri, Feb 24, 2017 9:05 AM
Prospectorgav
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Reply to Mike Meyer:
I think this book should help, it covers both the D7 diesel and pilot engine, appears to have the torque specs for the heads, bigends and mains, it is a old copy from Hastings Deering I bought a few years back, Caterpillar Form 31238-1, 190 pages, it is only the D7 engines, not the tranny.
Mike
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Thanks for the info. I have sourced a couple of books from the States, one is the Jensales D8800 5 3/4'' bore engine service manual and the other is the D7 3T service manual but I don't know what's in them as still in postage. I will try and source a copy of the manual Mike has. Thanks for the info edb, I can use this as these are the critical tensions and head tightening sequence. Cheers.
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Sat, Feb 25, 2017 4:44 AM
neil
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Reply to Prospectorgav:
Thanks for the info. I have sourced a couple of books from the States, one is the Jensales D8800 5 3/4'' bore engine service manual and the other is the D7 3T service manual but I don't know what's in them as still in postage. I will try and source a copy of the manual Mike has. Thanks for the info edb, I can use this as these are the critical tensions and head tightening sequence. Cheers.
If you can get a genuine manual, even if used, you'll likely find that better than the Jensales, at least based on the last JS one I saw which was a poor photocopy reproduction it seemed. Pictures were not worth looking at. Perhaps they're better quality now? You can get decent used Cat manuals in the 20-30 range, you just have to wait a bit for them to come up.
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Sat, Feb 25, 2017 7:08 AM
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