Ausmack1 Posted February 13, 2022 Share Posted February 13, 2022 Hello new to the forum I have been watching videos of the injector cup replacement on the volvo d13 mp8 and notice they use a graphite paste on the injector while I think in Australia they use a washer. Do u need to use paste aswell as the washer? Which way is better? Quote Link to comment https://www.bigmacktrucks.com/topic/69215-mack-trident-mp8-500-injector-cups/ Share on other sites More sharing options...
Vmac3 Posted February 16, 2022 Share Posted February 16, 2022 On 2/13/2022 at 6:04 PM, Ausmack1 said: Hello new to the forum I have been watching videos of the injector cup replacement on the volvo d13 mp8 and notice they use a graphite paste on the injector while I think in Australia they use a washer. Do u need to use paste aswell as the washer? Which way is better? In North America, the copper injector cups were replaced with steel cups because apparently they were to solve the issues with combustion gases passing the cup. I say apparently because this did not eliminate the issue. The graphite paste was used with the steel cups and the washer with the plastic coating was used with the copper cups. These can not be interchanged because the injectors are physically different. V 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69215-mack-trident-mp8-500-injector-cups/#findComment-489516 Share on other sites More sharing options...
fjh Posted February 16, 2022 Share Posted February 16, 2022 (edited) On 2/13/2022 at 3:04 PM, Ausmack1 said: Hello new to the forum I have been watching videos of the injector cup replacement on the volvo d13 mp8 and notice they use a graphite paste on the injector while I think in Australia they use a washer. Do u need to use paste aswell as the washer? Which way is better? And so you answer is no! To different concepts one debatably better than the other! If these guys had got rid of the dollar store plunger injection system and installed a proper hpcr system! these would be almost bullet proof engines ! They cheaped out yet again! Edited February 16, 2022 by fjh 2 Quote Link to comment https://www.bigmacktrucks.com/topic/69215-mack-trident-mp8-500-injector-cups/#findComment-489531 Share on other sites More sharing options...
Vmac3 Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, fjh said: And so you answer is no! To different concepts one debatably better than the other! If these guys had got rid of the dollar store plunger injection system and installed a proper hpcr system! these would be almost bullet proof engines ! They cheaped out yet again! Both cup styles are crap. One worse than the other. Their new common rail engines still have cup issues. And lets not forget about their ishifts. V 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69215-mack-trident-mp8-500-injector-cups/#findComment-489535 Share on other sites More sharing options...
fjh Posted February 18, 2022 Share Posted February 18, 2022 Yup still 3 cylinders with screw up potential ! Real smart! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69215-mack-trident-mp8-500-injector-cups/#findComment-489690 Share on other sites More sharing options...
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