New owner - many questions.
#1
New owner - many questions.
New, hopefully lucky owner of a 104k mile 1999 XJR.
Purchased it knowing it would need some work - so far, a lot of surprises. Some good, some... not so clear yet.
First, after hunting around here on the forum, I was under the impression that a 1999 XJR (May 99 build) would be an AJ26 engine. Looking at photos of the throttle body (since XJRs don't have VVT) I was pretty sure this was an AJ26
I read through the extensive service history from the original owner, and though there was a note about throttle body replacement, nothing about timing system. So I ordered the AJ26 orange/grey valve cover gaskets as well as the secondary tensioners and bolts to take care of right away.
This of course was before I had the valve covers off...
So just after taking them off (oil almost completely filling spark plug tubes, clear oil drips from both valve covers onto exhaust manifold baffles) I instantly see that they use the revised design.
So, now I have the Felpro gasket kit on order. And I have some brand new VC gaskets to put up in the classifieds, as well as tensioners, because I immediately see the upgraded metal-bodied secondary tensioners.
So, now that I have introduced the situation, here are a few related questions.
Purchased it knowing it would need some work - so far, a lot of surprises. Some good, some... not so clear yet.
First, after hunting around here on the forum, I was under the impression that a 1999 XJR (May 99 build) would be an AJ26 engine. Looking at photos of the throttle body (since XJRs don't have VVT) I was pretty sure this was an AJ26
I read through the extensive service history from the original owner, and though there was a note about throttle body replacement, nothing about timing system. So I ordered the AJ26 orange/grey valve cover gaskets as well as the secondary tensioners and bolts to take care of right away.
This of course was before I had the valve covers off...
So just after taking them off (oil almost completely filling spark plug tubes, clear oil drips from both valve covers onto exhaust manifold baffles) I instantly see that they use the revised design.
So, now I have the Felpro gasket kit on order. And I have some brand new VC gaskets to put up in the classifieds, as well as tensioners, because I immediately see the upgraded metal-bodied secondary tensioners.
So, now that I have introduced the situation, here are a few related questions.
- Is this indeed an AJ27 engine, then, based on the valve covers alone? I can snap a few pictures if this would help...
- Chances I have nikasil vs the improved bores? Any way to know for sure besides bore-o-scope?
- Is there any way to tell if the primary/lower chain tensioner has been replaced other than pulling the front cover?
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