DieselTalk

DieselEngineTrader's FREE Diesel Engine Forums

new topic search Categories login View Caterpillar Engines

CATEGORY LISTINGS > CATERPILLAR > 3126 1996 early model heui injector install? [ REFRESH ]
Thread Title:

3126 1996 early model heui injector install?


Created On Tuesday May 12, 2009 15:19 Diesel Talk
Diesel Talk Forum

DBR64
Diesel Talk Forum
Posts: 5
Joined: Jan 2008

Note Tuesday May 12, 2009 15:19 View thread in raw text format
Diesel Talk
Ok Folks I had a bad head gasket and pulled the head and had it rebuilt. The head had new injector cups installed and I have been told that the injectors need to be pressed in. So what does this mean? Is there a reaming tool that sizes the cup for a compressed fit or are the cup the right size when installed new? So does anyone know the correct procedure for the installation of the injectors? Thanks DBR
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

marc7242
Diesel Talk Forum
Posts: 254
Joined: Sep 2008

Note Tuesday May 12, 2009 15:33 View thread in raw text format
Diesel Talk
These shouldn't need to be pressed in with anything other than the palm of your hand. Some people will draw them in with the injector hold-down bolts, others frown on this. I've seen some people seat them with a rubber mallet, and some people place a block or mallet on top and press them down in with a prybar. Coat the o-rings with whatever CAT says to these days, clean engine oil works fine. I think the manual says half 15W40 and half camshaft lubricant. Torque on the injector hold-down bolts is the most important part of this operation. Don't have the manual in front of me but its in the area of 120 in-lbs
marc
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

bfbrennan
Diesel Talk Forum
Posts: 40
Joined: Nov 2007

Note Wednesday May 13, 2009 07:36 View thread in raw text format
Diesel Talk
The coppers need to be reamed and the injectors "coined" into the copper. Use STP or POWER PUNCH on the o'rings.
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

DBR64
Diesel Talk Forum
Posts: 5
Joined: Jan 2008

Note Wednesday May 13, 2009 17:21 View thread in raw text format
Diesel Talk
Thanks for the replies, I do have a couple further questions for clarification. I have found the reaming tool for the injector cup but need to know what the "coined" process is? Thanks DBR
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

Reitedb
Diesel Talk Forum
Posts: 2
Joined: Jul 2008

Note Friday October 23, 2009 19:05 View thread in raw text format
Diesel Talk
So is there anyone on the forum that has installed injectors in a early model 3126 heui? I've had the head rebuilt and on the engine and ready for the injectors. Are they pressed in?

-------------------------
 1996 FL50 3126 Cat 300 hp/860tq
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

desertstormboy
Diesel Talk Forum
Posts: 372
Joined: May 2008

Note Sunday October 25, 2009 09:53 View users profile View thread in raw text format
Diesel Talk
all injectors on the older 3116 and 3126 need to be pressed in with the injector tool specified in the cat manual. the injector hold down bolt is torqued down to 9 ft lb, pressed in with the tool and then retorqued again. i think it is 108 in lb. be careful on the crossover tubes hold down...those allen bolts can get away from ya and go into the cylinder head...

-------------------------
 IT WENT BING BANG BOOM!
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
CATEGORY LISTINGS > CATERPILLAR [ REFRESH ]
Duncan Rogers (Engineering) Ltd
Duncan Rogers (Engineering) Ltd
Duncan Rogers (Engineering) Ltd
Duncan Rogers (Engineering) Ltd
Big Bear Engine Company
Advertize on Diesel Engine Trader

Customer Testimonials

Newsletter

Subscribe to our mailing list to get all the latest DET news.as well as daily or weekly notifications of new engines, gensets and spare parts listings.

'Greetings from Holland! I sold my Bedford 330 engine to a guy in Latvia, thank you for the good working of your website.'

Bas Mulder, Mulder Transport, Holland

'The DieselEngineTrader.com website is great and we'll continue to use it in the future.'

Robyn Hazen, Government Liquidation, Scottsdale, AZ, USA

'Although there are other sites on the internet, DieselEngineTrader.com shows the equipment details very well, is maintained in a professional way and has helped us to sell engines. Keep up the good work!'

Peter van Lelieveld, DELTA TRADING BV Holland

Copyright Diesel Engine Trader 2015