HT4100 Timing Chain Replacement
#1
HT4100 Timing Chain Replacement
Hi, how often do i need to change /replace the timing chain on my 4.1 deville?
I have 175000 miles on it. Do i need to worry about it?
How do i find out if i need to replace the timing chain?
Thanks
I have 175000 miles on it. Do i need to worry about it?
How do i find out if i need to replace the timing chain?
Thanks
#2
RE: HT4100 Timing Chain Replacement
An GM Drive Train Engineer told me once: "the timing chain doesnt owe you anything after 100,000 miles"
Being that he was one of "the men" in the development of all three Allante engines, I do listen to his advice.
I'm running around 140,000+ on it and I pray at it - a lot. Engine still pushed that Allante to 110mph just three months ago and held up well.
A full time mechanic told me that an erratic idle where one can show erratic timing is a definite change the chain yesterday. In my cars, I can pull the D.I.C. and check the timing while traveling at any speed, so far, she is looking good.
Being that he was one of "the men" in the development of all three Allante engines, I do listen to his advice.
I'm running around 140,000+ on it and I pray at it - a lot. Engine still pushed that Allante to 110mph just three months ago and held up well.
A full time mechanic told me that an erratic idle where one can show erratic timing is a definite change the chain yesterday. In my cars, I can pull the D.I.C. and check the timing while traveling at any speed, so far, she is looking good.
#4
RE: HT4100 Timing Chain Replacement
A timing chain is a big job regardless of engine. The 4100 has some differences in thermostat housing ( depending on car its in) and bolts used to attach the water pump to the timing cover. Do you have a factory service manual? Are you doing this yourself? Do you rank yourself a better than average shade tree? Factory service manual is a MUST if you do this yourself.
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mattmondo
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09-17-2010 08:41 PM