timing chain mileage
Feb 1, 2012 | 01:22 PM
#21
Registered User
Joined: Jul 2011
Posts: 75
Likes: 0
From: WA
At least you pulled the pan and hopefully fished out all the broken plastic guide pieces. The previous owner of my rig didn't. The oil pickup tube was 80%+ obstructed.
If the guides break. You're pulling the pan. Period.
If the guides break. You're pulling the pan. Period.
Feb 2, 2012 | 11:01 PM
#22
Registered User
Joined: Jan 2005
Posts: 1,600
Likes: 1
From: Leadville Colorado
I've got 151K original miles on my chain and guides. I expect to get a lot more miles and years out of it. I would just take the valve cover off and if the guides are intact I wouldn't worry about it.
Feb 3, 2012 | 08:58 AM
#23
Registered User
Joined: Sep 2008
Posts: 3,887
Likes: 16
From: Spokane, WA
Drew: Considering it was done properly, no. My comment was mainly directed to the OP or anyone else considering a HG change. But, for you, go with OEM next time. 
One thing to keep in mind about head bolts is that after five or so complete heat cycles, a re-torque is almost required. This is a commonly missed step that can have disastrous results. Especially in a forced induction application. One re-torque is all that's necessary after the heat cycles. They should hold properly at that point. However, if your bolts aren't new and/or the head bolt threads in the block weren't properly cleaned, then all bets are off.
Re-torquing multiple times is not recommended; but, that's another discussion... Re-torque once after five or so heat cycles and she should hold.
One thing to keep in mind about head bolts is that after five or so complete heat cycles, a re-torque is almost required. This is a commonly missed step that can have disastrous results. Especially in a forced induction application. One re-torque is all that's necessary after the heat cycles. They should hold properly at that point. However, if your bolts aren't new and/or the head bolt threads in the block weren't properly cleaned, then all bets are off.
Re-torquing multiple times is not recommended; but, that's another discussion... Re-torque once after five or so heat cycles and she should hold.
I like to live on the edge.
Feb 3, 2012 | 10:41 AM
#24
Registered User
Joined: Jul 2011
Posts: 75
Likes: 0
From: WA
Meh...valve chatter is just a reminder that you're running a 22.
8k miles is about a year depending on your commute. Most things survive short term. Let's see where she's at say...112k miles from now.
Someone can buy the best, most expensive, hand crafted, gold plated parts on the planet; but, if they're not installed properly, premature failure will occur.
I approach an engine build/repair with two things in mind. How much money can I put into it and how long do I want it to be before I have to repair it again. If I can't afford the better product, I am going to make certain that what I can buy is installed properly so it can perform as it was designed. Whether it be short or long term.
In the end it's not completely a question of brand, it's more of a question of how it was installed. An inferior product will go a long way when properly installed. A superior product installed properly will be AMAZING! With proper care of course...
On multiple occasions, I have seen as much as 10 ftlbs difference between head bolts. Studs not so much...
So....peow130....take a half hour and re-torque those head bolts. But, hey...I'm just some random crazy cajun on the internet that lost an arm wrestling an alligator giving out advice...
8k miles is about a year depending on your commute. Most things survive short term. Let's see where she's at say...112k miles from now.
Someone can buy the best, most expensive, hand crafted, gold plated parts on the planet; but, if they're not installed properly, premature failure will occur.
I approach an engine build/repair with two things in mind. How much money can I put into it and how long do I want it to be before I have to repair it again. If I can't afford the better product, I am going to make certain that what I can buy is installed properly so it can perform as it was designed. Whether it be short or long term.
In the end it's not completely a question of brand, it's more of a question of how it was installed. An inferior product will go a long way when properly installed. A superior product installed properly will be AMAZING! With proper care of course...
On multiple occasions, I have seen as much as 10 ftlbs difference between head bolts. Studs not so much...
So....peow130....take a half hour and re-torque those head bolts. But, hey...I'm just some random crazy cajun on the internet that lost an arm wrestling an alligator giving out advice...
Feb 4, 2012 | 01:54 PM
#25
My 91 I sold at 290,000 with the oem timing set up. The guy I sold it do did it at 292,000, also chenge the oil pump and water pump to be safe. He did not change the head gasket. The truck is still running at 320+ with the orignal HG. The truck is on yota tech here some where I think the new guy called it crystal.
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