damaged distributor and slack timing belt
#1
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Join Date: Oct 2014
Location: The Big Island in the North Atlantic
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damaged distributor and slack timing belt
started taking more off the front of the engine and found some surprises. The left distributor was cracked and a pieces of it was missing. Perhaps the piece that was missing spun around and beat the rotor. I'm surprise the PO had the car car running at all.... the fun continues.
I also found the upper portion of the timing belt to be somewhat slack.
Lower section is tight but the upper... not so much.
I also found the upper portion of the timing belt to be somewhat slack.
Lower section is tight but the upper... not so much.
#2
Rennlist Member
That is a bit of a sad looking front end- I take it you are planning to do a complete refresh? Belt tension should be checked [with an appropriate tool] with the engine at TDC on No1 cylinder
I presume we are looking at a 32V motor here [helps if indicate what 928 you have]- if that is how the rest of it is it rather looks as though you may have some fun refreshing it but do not let that put you off- view it as a "nice rewarding challenge".
No idea what you know and what you do not about the 928 motor specifically but given you are relatively new to the list and not many posts presumably you are on a learning curve here?
If you do not know the provenance of the timing belt and water pump just change them- if you want to know how to do it refer Dwayne's wonderful photo journal of how to do it [look up Wayne's 928 garage on Google. Perhaps you can post a pic of how the teeth on the cam wheels look- inspect them carefully for debris damage [unlikely but...?].
How the heck anyone could trash a rotor arm like that is beyond me unless something else hit it.
Rgds
Fred
I presume we are looking at a 32V motor here [helps if indicate what 928 you have]- if that is how the rest of it is it rather looks as though you may have some fun refreshing it but do not let that put you off- view it as a "nice rewarding challenge".
No idea what you know and what you do not about the 928 motor specifically but given you are relatively new to the list and not many posts presumably you are on a learning curve here?
If you do not know the provenance of the timing belt and water pump just change them- if you want to know how to do it refer Dwayne's wonderful photo journal of how to do it [look up Wayne's 928 garage on Google. Perhaps you can post a pic of how the teeth on the cam wheels look- inspect them carefully for debris damage [unlikely but...?].
How the heck anyone could trash a rotor arm like that is beyond me unless something else hit it.
Rgds
Fred
#3
Team Owner
the rotors appear to have been pried on possibly to turn the pulleys ,
rotor removal would have provided a safe way to move the cams.
Warning looking closely it appears that the spacer washer that goes between the spring and insulator for the tensioner warning is missing.
make sure to get the proper spacer washer installed before putting this unit back in service
rotor removal would have provided a safe way to move the cams.
Warning looking closely it appears that the spacer washer that goes between the spring and insulator for the tensioner warning is missing.
make sure to get the proper spacer washer installed before putting this unit back in service
#5
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Join Date: Oct 2014
Location: The Big Island in the North Atlantic
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That is a bit of a sad looking front end- I take it you are planning to do a complete refresh? Belt tension should be checked [with an appropriate tool] with the engine at TDC on No1 cylinder
I presume we are looking at a 32V motor here [helps if indicate what 928 you have]- if that is how the rest of it is it rather looks as though you may have some fun refreshing it but do not let that put you off- view it as a "nice rewarding challenge".
No idea what you know and what you do not about the 928 motor specifically but given you are relatively new to the list and not many posts presumably you are on a learning curve here?
If you do not know the provenance of the timing belt and water pump just change them- if you want to know how to do it refer Dwayne's wonderful photo journal of how to do it [look up Wayne's 928 garage on Google. Perhaps you can post a pic of how the teeth on the cam wheels look- inspect them carefully for debris damage [unlikely but...?].
How the heck anyone could trash a rotor arm like that is beyond me unless something else hit it.
Rgds
Fred
I presume we are looking at a 32V motor here [helps if indicate what 928 you have]- if that is how the rest of it is it rather looks as though you may have some fun refreshing it but do not let that put you off- view it as a "nice rewarding challenge".
No idea what you know and what you do not about the 928 motor specifically but given you are relatively new to the list and not many posts presumably you are on a learning curve here?
If you do not know the provenance of the timing belt and water pump just change them- if you want to know how to do it refer Dwayne's wonderful photo journal of how to do it [look up Wayne's 928 garage on Google. Perhaps you can post a pic of how the teeth on the cam wheels look- inspect them carefully for debris damage [unlikely but...?].
How the heck anyone could trash a rotor arm like that is beyond me unless something else hit it.
Rgds
Fred
#6
Rennlist Member
I have an 86.5...very rewarding once you get them going. Keep fighting the good fight!
#7
Rennlist Member
If you haven't already, you're going to want to make friends with Roger at 928sRUs and Mark or Tom at 928 International, among others. Their prices are good and they will definitely steer you in the right direction in terms of what you need.
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#8
Rennlist Member
those rotors are trashed. also , look at the holes I the cam pulley.. there are marks, like someone with a screwdriver was trying to pry the cam pullies forward, or off, or something. that's why the rotors are cracked at the position where they are. and why is the contact copper looking like its melted?????? anyway, that's one messed up engine frontal. glad you are giving it some attention.