| Timing chain replacement [message #369706] |
Thu, 19 May 2022 16:37  |
joewilly
Messages: 40
Registered: April 2016
Location: Victor,Ia
Karma:
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Hello all,
I know this has been covered before and I've searched and read everything I can find but I have never done this type of maintenance before so would really appreciate your guidance/tips for getting this done right.
I know that many prefer the Cloyes double roller set but I've also heard that it's overkill for an engine with 80k that has not been rebuilt ( my engine )
I already have everything removed up to the timing cover so you know where I'm at in the process.
1. It's a 1978 Royale with 403 with appox 80k w/ good compression no known problems.
The reason for doing this is I was replacing water pump and was advised by another GMC'er to pull fuel pump and check the timing gear.
I did and found it has the nylon gear and at least 1 gear had a chip gone from 1 tooth, I didn't rotate the engine to check for more. I figured if 1 is bad the rest aren't far behind.
2. I'm not planning to rebuild the motor anytime soon ( fingers crossed ) so I'm thinking on going with a single stock replacement gear set. ( yes /no ? )
( it should last until it needs a rebuild )
What gear set would be recommended? Summit has a single chain Cloyes C-3006k set , $25.
3. What gasket set is recommended?
Felpro ? other ?
4.should I replace the harmonic damper/balancer ? anything else that needs to be replaced?
5. What's the best way to support engine when removing front mount? Do I have to lift it to get mount removed or just support it from underneath?
6.Any tips/techniques/advice would be very much appreciated. I have read the manuals and searched forums but still a little intimidated. Anything I'm missing?
Thanks in advance, your expert advise is greatly appreciated.
Joe
Joe Williams
1978 Royale rear twin
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