Maverik Posted March 28, 2022 Share Posted March 28, 2022 Interesting one, Def 200tdi - PAS pump NTC9070 - out the blue after taking the engine out last to re-do the rear oil seals on putting engine back in the PAS belt (what I thought) has started squeeling. When engine is removed the PAS pump is just dismounted (not dissconected). - put a new belt on, no difference, replaced PAS pulley... no difference. I removed the belt and ran her and there was no noise so it is from the PAS area. I did wonder if the crank pulley was dirty, so threw some soapy water at it and it didnt do anything. Took the belt off and span the pump by hand and it feels normal with no noise. Odd symptoms, if you load the engine by steering when not moving the noise doesnt really change, - which to me means its not actually a belt slip problem, as I'd expect the noise to change when the pump is loaded - so am I hearing the noise of a front bearing failure in the PAS pump? Cheers Mav Quote Link to comment Share on other sites More sharing options...
Maverik Posted March 29, 2022 Author Share Posted March 29, 2022 Well I've ordered a new pump so will throw that on and hopfully sorts the issue. The money pit has been rather deep lately... Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted March 29, 2022 Share Posted March 29, 2022 Curious. It didn't get knocked putting the engine back in did it ? Mo Quote Link to comment Share on other sites More sharing options...
Maverik Posted March 29, 2022 Author Share Posted March 29, 2022 3 hours ago, Mo Murphy said: Curious. It didn't get knocked putting the engine back in did it ? Mo No I doubt it, pretty straight forward operation. - but I was working out how old it is, I remeber replacing it when I put the engine in which was 2014 apparently! so its not done too badly, I just wonder if all the taking it on and off in the last 6 months has just unsettled it? anyways new one just arrved so I'm off to go change it before the snow tomorrow! 2 Quote Link to comment Share on other sites More sharing options...
Maverik Posted March 29, 2022 Author Share Posted March 29, 2022 So turns out all along it wasn't the belts... or the PAS, I took all the belts off and the noise was still there, noise only went when I removed the crank pulley. 1 Quote Link to comment Share on other sites More sharing options...
Jocklandjohn Posted March 29, 2022 Share Posted March 29, 2022 I had a noise like that, did my head in for ages as I tried to resolve it, new belts, and all sorts. Turns out the pulley was *just* loose enough to squeal under load but tight enough to not move when I tried turning it with the engine off. I removed and cleaned it all up rebolted it and did it up tightly again and it was all ok afterwards. Quote Link to comment Share on other sites More sharing options...
Maverik Posted March 29, 2022 Author Share Posted March 29, 2022 I think this could be part of the problems too. 1 Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 29, 2022 Share Posted March 29, 2022 Do you have a straight edge? I'd be looking at the timing case for distortion. Quote Link to comment Share on other sites More sharing options...
Maverik Posted March 29, 2022 Author Share Posted March 29, 2022 Hmmm I fear that something has gone amiss when I changed the injector pump, if you follow the rub marks it looks like the tensioner has diverting the belt back into position after possibly being bumped out of alignment off the injector pump pulley. I think I need to have a look at the injector pump make sure it's sitting square on the housing. Quote Link to comment Share on other sites More sharing options...
Popular Post Maverik Posted April 16, 2022 Author Popular Post Share Posted April 16, 2022 To close this out. I put the thing back together with new tensioner and crank shaft pulley, I did this a few times changing the tensioner to see how the belt ran, I also played around with the bracket on the fuel injection pump to see if the timing belt ran any truer, nothing I did effected how the belt ran on the pulleys, so I just buttoned it back up, put a new damper pulley on also, this was a britpart supply - i was a bit nervous about using britpart so i checked all the key dimensions against the original damper and it looked spot on, so i just used it. The noise i had has gone away it feels like she's pulling well. Fingers crossed it stays like it. 6 Quote Link to comment Share on other sites More sharing options...
geoffbeaumont Posted April 19, 2022 Share Posted April 19, 2022 Well, that seems like a result! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.