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6A - Engine Mechanical

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  1. 1.9 head and all thats required with larger valves and porting.

    Opel Engine Performance Modifications
    hey all I have my motor(10 bolt high compression 1.9) apart and the valves are not sealing well so it looks like I will be having larger valves put in. While it is at the machine shop I'm looking at doing the rallyBob port. My question is with those things done what else will I need to do...
  2. Amp Gauge too High

    1A - Starting and Charging System
    I have had a problem with the charging system on my GT after taking out of storage and driving it to a car show. It worked fine all day but the next morning the battery was dead. I found no shorts or anything on. I had the charging system tested at Oreilly's and they said the battery was good...
  3. Opel 3.0 - A New Beginning...

    Member Projects
    Ok so I decided to end working on my 1969 Opel GT that some have followed in the Opel 2.0 Thread. There were several reasons which I will let you read about in my closing post on that thread. This thread is to follow the work on my new 1970 Opel GT which I picked up in Greeley, CO. This car...
  4. Has anyone used DOT 5 brake fluid on new brake restorations?

    Group 5 - Brakes
    I am restoring my 72 Opel GT and want to use DOT 5 fluid. However, I have read some where on line that some people are having soft pedal issues when using Dot 5. Unfortunately, I saw that and I am having second thoughts about using the DOT 5. Additionally, I saw the article after I already...
  5. Opel Oil Relief Valve (Why it's Important)

    6A - Engine Mechanical
    Opel observed that early versions of its 1.9L engines were prone to a loss of oil pressure which could result in damage to main and or connecting rod bearings (a very bad situation!) caused by sticking of the early-design relief valve ball. Opel soon issued a repair kit to retrofit these...
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