falha de compressao num suziki 1.3 diesel

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antonio
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falha de compressao num suziki 1.3 diesel

Post by antonio »

Suzuki_Ignis_2007_Diesel_20231031-0004.png
Suzuki_Ignis_2007_Diesel_20231031-0003.png
custa dar o arranque , so quando pega ,passado um bocado pega mais rapido.canal 1 e o teste de compressao relativa .canal2 e o injector n1. canai 3 e pressao interna do cilindro n3
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Steve Smith
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Re: falha de compressao num suziki 1.3 diesel

Post by Steve Smith »

Hello Antonio and thank you for post

I have translated using Google Translate so please forgive any misinterpretation of my Portuguese

custa dar o arranque , so quando pega ,passado um bocado pega mais rapido.canal 1 e o teste de compressao relativa .canal2 e o injector n1. canai 3 e pressao interna do cilindro n3

It's hard to start, only when it starts, after a while it starts faster. channel 1 and the relative compression test. channel 2 and injector n1. channel 3 and internal pressure of cylinder n3


Testing compression for Diesel engines exhibiting “Hard Start” is perfect

I would however remove the transducer at this stage and carry out just a relative compression test as per your final image above

We may have a scenario in your captures where the installation of the pressure transducer is potentially increasing cylinder volume and so lowering compression (A measurement error)

Could you take a look at the following forum post topic16131.html which will help

If Cylinder 3 still indicates a low compression with the pressure transducer removed, we can then measure intrusively

Where are you located in Portugal?

Take care……Steve

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antonio
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Re: falha de compressao num suziki 1.3 diesel

Post by antonio »

OLA STEVE EU VIVO N A ILHA DA MADEIRA ,RELACAO AO SUZUKI E O SEGUITE LEVA MAIS TEMPO A PEGAR QUANDO SE DAR A CHAVE EM RELACOA AO NORMAL ,ESSA MESMA VIATURA O HISTURIAL DELA E QUE O MOTOR DELE LEVOU UM AQUECIMENTO FICOU SEM AGUA E DESLIGOU SE O CLIENTE METEU UM MOTOR USADO MAS APARTIDAI CUSTA A PEGAR A PRIMEIRA VEZ.NAO E BATERIA NEM VELAS NEM PRESSAO DE GASOLEO NEM BICOS DE INJECTORES NEM SENSORES DE CAMBOTA E ARVORE CAMES E O PONTO MECANICO. JA FIZ UM TESTE DE COMPRESSAO E HA UM CILINDRO COM 75% DECOMPRESSAO E OS RESTANTE COM 100% PARA ONDE ESTA PERDER A COMPRESSAO O CILINDRO COM 75% SERA O MOTIVO DE ELE CUSTAR A PEGAR DO QUE NORMAL DESTES CARROS
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Opel_Corsa C_2006_Diesel_20231111-0003.psdata
UMA VIATURA BOA
(4.61 MiB) Downloaded 106 times
Suzuki_Ignis_2007_Diesel_20231030-0001.psdata
(794.77 KiB) Downloaded 89 times
Suzuki_Ignis_2007_Diesel_20231031-0002.psdata
(589.79 KiB) Downloaded 105 times

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antonio
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Re: falha de compressao num suziki 1.3 diesel

Post by antonio »

E ESTA FORMA DE ONDA CORRETA DE TESTE COMPRESSAO DESTES MOTORES
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Opel_Corsa C_2006_Diesel_20231111-0001.psdata
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Steve Smith
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Re: falha de compressao num suziki 1.3 diesel

Post by Steve Smith »

Hello and thank you for the posts

Forgive any misinterpretation here in my reply

Looking at your relative compression waveforms, we clearly have concerns around compression and /or opposition to engine rotation during cranking

How does the engine turn over by hand, is it smooth or can you feel any tight spots?

Below we have what appears to be one good compression and 3 considerably lower
5A
5A
Looking at your next capture, we have a missing cylinder but notice how the effort on the starter motor increases across each cylinder before dropping rapidly for the missing cylinder
5b
5b
Your compression peaks should be even and equal as per the Opel_Corsa C_2006_Diesel_20231111-0001 capture

Based on the above, we now need to identify the offending cylinder as Ben has described here https://youtu.be/EsJBOFzETjQ?si=6Rgoyd1TW_ElsqWF and then apply the pressure transducer

I hope this helps, tale care……Steve

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