1690

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gerard
Posts: 58
Joined: Fri Mar 11, 2011 7:59 pm
Location: kerry ,ireland

1690

Post by gerard » Tue Nov 24, 2015 11:10 pm

Gave my 1690t engine a hand up rings headgasket valves con rod bearings and injectors all done.problem is its still slow to start .the injector pump is turned in towards engine a boy a quarter of a inch from Mark and screw on top with 13 nut is shown a lot of thread what way should pump b I put pump back to original mark but made no difference any advice.

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ollek
Posts: 3778
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

RE: 1690

Post by ollek » Wed Nov 25, 2015 7:21 am

The 1690T has low compression pistons. This results in that the starting of the engine is a bit "slow" You will have to have a fully charged battery and good contacts between the battery cables, ground and the starter motor. You also have to check that the Thermostat system is working properly and use the system in the correct way. Do not tamper with the injection pump and the pump timing, it will make things worse and can lead to damage to the pistons and the piston rings.

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case-ih1594
Posts: 1065
Joined: Sun May 12, 2013 10:38 am
Location: Preston

RE: 1690

Post by case-ih1594 » Wed Nov 25, 2015 8:37 am

Hi, I would say the next thing required is the injection pump being reconditioned. Somehow, if anything, doing up injectors / valves / rings only seems to highlight the fact that the pump is worn. I know from experience.

broadsword
Posts: 1707
Joined: Thu Jun 12, 2008 9:17 pm
Location: Holmfirth, Huddersfield

Post by broadsword » Wed Nov 25, 2015 9:38 am

Gerard,
the 6 cylinder engines can be slow starters and smoke alarmingly for the first 2/3 minutes - not all do, but some do - it tends to be the nature of the engines I`m afraid so tend to agree with olleks point.
If you can get something on you tube perhaps some may be able to comment - not knowing the previous ownership but they are also prone to having the pumps wound on to get more power (and smoke!!) from power crazed owners!!!

Good Luck

Andy

JamesF
Posts: 1327
Joined: Tue Mar 14, 2006 8:49 pm
Location: South Yorkshire

Post by JamesF » Wed Nov 25, 2015 10:00 am

My own 1690t smokes alarmingly when started from cold although it doesn't take any starting.

It needs 10 mins running before the smoke clears but once it has cleared it runs spotlessly.

It's normal for a new engine to be a slow starter and smoke until it's run in.

Line the injector pump up with the original timing mark.

As ollek says the thermostart needs to be in working order, it won't start properly without the cold start heater plug working. Avoid the temptation to use the excess fuel button on the pump, they don't like it!

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