Ford 1700 glow plug

[geozeitl]

Indicator works, when l put new plugs into works great but you can tell after about 3 uses it really slow lighting up and when the plugs are toast it doesn't light up at all

 

[Peter 315]

When you turn the key right to start I wonder if the glow plugs are getting to much juice and burning out. If you hooked a light to the glow plugs it would show when they or on and how long

 

[Peter 315]

glow plug review on amazo* Garbage.... lasted 2 startups and Then burnt out. idk junk plugs.....:confused3:

 

[geozeitl]

I wondered that myself but l found some NGKs and the same thing happened.

 

[Peter 315]

I found a picture of the back of the key switch # 19 glow plug resister # 17 glow plug resister and glow plugs

 

[geozeitl]

Can you post it

 

[Peter 315]

Here you go, You might have to buy a service manual for the tractor Amazon.com: 7298283 New Ignition Switch for Ford New Holland 1 11 12 13 15 +: Industrial & Scientific

 

[geozeitl]

I think that is my next ste, changed the indicator, plugs, there is no safety switch. Thanks for your research l'd buy you a beer if l could

 

[Peter 315]

Let me know how you make out with the new parts..

 

[HakanTh]

I think the problem is at the injection/compression/combustion processes, see this information (page 6):
https://www.boschautoparts.com/documents/101512/0/0/0b189154-b815-46d7-bf70-e153bb6ecb88

At over-voltage you get a swelling/melting from the inside out (or no visible damage). The damages on your plugs seem very much to come from cold diesel fuel sprayed over the hot tip of the "bulb", causing it to crack, when the engine is running.

Do not buy anything yet, apart from plugs.
Check the timing and the injectors, before you put the new plugs in.
And look for/clean out parts from the damaged plugs inside the cylinder.


I found a wiring diagram at New Holland Online Parts List during my research. I thought it may be of use, maybe not for this problem but it is always nice to have:
Official New Holland Online Parts Store and Online Parts Catalog for New Holland and Ford Tractors.